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Home > WI Providers > Orthopedic Surgeons

Dr. Timothy I. Mullin, MD

Accepting New Patients

(205 Ratings)

Specializes in: Orthopedics/Orthopedic Surgery

Medical College of Wisconsin (2004)

Professional interests include: meniscus tear, injuries, knee arthroscopy, and more.

1700 W PARADISE DRIVE
WEST BEND, WI 53095

(262) 334-3451

Dr. Timothy I. Mullin, MD is an orthopedist in WEST BEND, WI specializing in orthopedics/orthopedic surgery. He graduated from Medical College of Wisconsin in 2004 and has 22 years of experience. Dr. Timothy I. Mullin, MD is affiliated with Medical College of Wisconsin, Froedtert & the Medical College of Wisconsin Regional Health Network, Froedtert Menomonee Falls Hospital, Froedtert West Bend Hospital, Froedtert West Bend Hospital - West Bend and Froedtert Menomonee Falls Hospital - Menomonee Falls.

Office Locations

1700 W PARADISE DRIVE
WEST BEND, WI 53095

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Some issues Dr. Timothy I. Mullin, MD can help you with:

Replacement Arthroplasty (Joint Replacement)

Joint replacement, sometimes also called arthroplasty, is an option when a joint becomes severely damaged by disease or injury. The damaged cartilage of the joint is surgically removed, the ends of the bones in the joint are resurfaced, and a prosthetic is installed. Most prosthetic joints are made of a metal piece that fits into a plastic sleeve so that they glide smoothly. A joint replacement increases stability in the damaged area and decreases pain. The hip and knee are the two joints most commonly replaced, but joint replacement can also be performed on the ankle, shoulder, elbow and even fingers.

Although joint replacement is one of the safest and most reliable medical procedures available, it is still a major surgical procedure. All surgical procedures carry risks, such as infection or blood clots. For this reason, doctors try to help their patients avoid surgery for as long as they can. Taking arthritis medications, losing weight, avoiding high impact sports such as running, taking supplements such as glucosamine or chondroitin, or having joint injections may allow a patient to enjoy life without the need for surgery.

After having joint replacement surgery, patients can expect some pain the first few days as they recover. Physical therapy is an important part of recovery, and it can decrease complications and increase future mobility. As soon as possible, returning to low impact sports such as swimming, walking or biking can stretch and heal the new joint. A prosthetic joint can last 15 - 20 years and cannot be further damaged by degenerative diseases such as arthritis, so once it is done patients should be pain-free for many years.

Noteworthy Medicare Patient Procedures Performed by Dr. Timothy I. Mullin, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Volume:

joint reconstruction

lower extremity surgery

major joint aspiration

major joint injection

reconstructive surgery

total knee replacement

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, among providers in related specialties within Wisconsin, Dr. Timothy I. Mullin, MD performed more joint reconstruction, lower extremity surgery, major joint aspiration, major joint injection, reconstructive surgery, and total knee replacement procedures for Medicare patients than 75% of them and he also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2012 were aspiration, injections, lab tests and hospital care.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	174
blood draw	43
doctor visit	605
hospital care	82
injections	174
inpatient care	82
joint surgery	13
lab tests	135
lower extremity surgery	13
reconstructive surgery	13

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2013 were lab tests, aspiration, injections and lower extremity surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	205
blood draw	48
doctor visit	510
hip imaging	22
hospital care	22
injections	205
inpatient care	22
joint surgery	48
lab tests	236
lower extremity surgery	48
musculoskeletal imaging	22
pelvic imaging	22
reconstructive surgery	48
X-rays	44

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	92
Female	200

**Age**
From 65 to 74	118
From 75 to 84	90
85 and over	51
Less than 65	33

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2013

Hypertension	60
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	19
Asthma	12
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	14
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2014 were aspiration, injections, X-rays and lab tests.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	287
doctor visit	616
hip imaging	20
hospital care	38
injections	287
inpatient care	38
joint surgery	48
lab tests	56
lower extremity surgery	48
musculoskeletal imaging	36
pelvic imaging	26
reconstructive surgery	48
X-rays	62

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	110
Female	232

**Ethnicity**
Non-Hispanic White	328
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	102
85 and over	62
Less than 65	27

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2014

Hypertension	63
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	30
Depression	23
Chronic Kidney Disease	20
Asthma	7
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	12
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2015 were aspiration, injections, hospital care and inpatient care.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	273
doctor visit	662
hospital care	73
injections	273
inpatient care	73
joint surgery	64
lower extremity surgery	64
reconstructive surgery	64

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	226
Female	450

**Ethnicity**
Non-Hispanic White	640
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	298
From 75 to 84	212
85 and over	104
Less than 65	62

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2015

Hypertension	67
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	24
Depression	25
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	17
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	10
Diabetes	28
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2016 were aspiration, injections, hospital care and inpatient care.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	263
doctor visit	592
hospital care	78
injections	263
inpatient care	78
joint surgery	68
lower extremity surgery	68
reconstructive surgery	68

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	120
Female	214

**Ethnicity**
Non-Hispanic White	321
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	104
85 and over	49
Less than 65	27

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2016

Hypertension	68
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	25
Depression	22
Chronic Kidney Disease	27
Asthma	17
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2017 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	247
doctor visit	655
hospital care	69
injections	247
inpatient care	69
joint surgery	78
lower extremity surgery	78
reconstructive surgery	78

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	145
Female	264

**Ethnicity**
Non-Hispanic White	394
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	138
85 and over	55
Less than 65	29

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2017

Hypertension	64
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	26
Depression	19
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2018 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	194
doctor visit	535
hospital care	50
injections	194
inpatient care	50
joint surgery	97
lower extremity surgery	97
preventive care	12
reconstructive surgery	97
vaccines	12

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	135
Female	248

**Ethnicity**
Non-Hispanic White	365
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	136
85 and over	59
Less than 65	30

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2018

Hypertension	70
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2019 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	226
doctor visit	497
hospital care	15
injections	226
inpatient care	15
joint surgery	86
lower extremity surgery	86
reconstructive surgery	86

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	132
Female	224

**Ethnicity**
Non-Hispanic White	332
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	165
From 75 to 84	122
85 and over	41
Less than 65	28

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2019

Hypertension	69
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	30
Depression	22
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	25
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2020 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	167
doctor visit	317
hospital care	29
injections	167
inpatient care	29
joint surgery	67
lower extremity surgery	67
reconstructive surgery	67

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	109
Female	212

**Ethnicity**
Non-Hispanic White	304
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	108
85 and over	45
Less than 65	19

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2020

Hypertension	70
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	27
Depression	25
Chronic Kidney Disease	32
Asthma	8
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2021 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	167
doctor visit	307
hospital care	22
injections	167
inpatient care	22
joint surgery	74
lower extremity surgery	74
reconstructive surgery	74

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	105
Female	195

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	103
85 and over	37
Less than 65	17

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2021

Hypertension	67
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	26
Depression	17
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	12
Atrial Fibrilation	17
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2022 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	110
doctor visit	300
hospital care	25
injections	110
inpatient care	25
joint surgery	85
lower extremity surgery	85
reconstructive surgery	85

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	138
Female	169

**Ethnicity**
Non-Hispanic White	288
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	113
85 and over	37
Less than 65	16

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	26
Depression	21
Chronic Kidney Disease	23
Asthma	13
Osteoperosis	18
Atrial Fibrilation	21
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI during 2023 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

aspiration	128
doctor visit	310
hospital care	27
injections	128
inpatient care	27
joint surgery	78
lower extremity surgery	78
reconstructive surgery	78

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	109
Female	203

**Ethnicity**
Non-Hispanic White	297
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	145
From 75 to 84	121
85 and over	33
Less than 65	13

Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD in 2023

Hypertension	74
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	21
Asthma	14
Osteoperosis	18
Atrial Fibrilation	19
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	22
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Timothy I. Mullin, MD for Medicare patients.

The highest averages for the top procedures that Dr. Timothy I. Mullin, MD treated as an orthopedist in WEST BEND, WI were aspiration, injections, lab tests and lower extremity surgery.

aspiration	203
blood draw	45
doctor visit	492
hip imaging	21
hospital care	44
injections	203
inpatient care	44
joint surgery	67
lab tests	142
lower extremity surgery	67
musculoskeletal imaging	29
pelvic imaging	24
preventive care	12
reconstructive surgery	67
vaccines	12
X-rays	53

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Timothy I. Mullin, MD.

**Gender**
Male	118
Female	217

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	295
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	112
85 and over	47
Less than 65	25
65 to 74	150

Average of Total of Conditions of Medicare patients treated by Dr. Timothy I. Mullin, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Timothy I. Mullin, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	62
High Cholesterol	54
Stroke	1
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	24
Asthma	9
Osteoporosis	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	24
Atrial Fibrillation	13
Cancer	10
Dementia	9

Education & Training

Dr. Timothy I. Mullin, MD graduated from Medical College of Wisconsin in 2004. He completed residency at Medical College of Wisconsin Affiliated Hospitals. He is certified by the General Orthopaedics and has a state license in Wisconsin.

Medical School: Medical College of Wisconsin (2004)

Residency: Medical College of Wisconsin Affiliated Hospitals (2009)

Board Certification: General Orthopaedics

Licensed In: Wisconsin

Affiliations & Hospitals

Dr. Timothy I. Mullin, MD is associated with these hospitals and organizations:

Medical College of Wisconsin

Froedtert & the Medical College of Wisconsin Regional Health Network

Froedtert Menomonee Falls Hospital

Froedtert West Bend Hospital

Froedtert West Bend Hospital - West Bend

Froedtert Menomonee Falls Hospital - Menomonee Falls

Ratings & Reviews

Dr. Timothy I. Mullin, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 205 ratings. We collect ratings and reviews of Dr. Timothy I. Mullin, MD from all over the web to help you find the right in WEST BEND, WI.

4.91

Overall Rating

(205 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-06-03

Patient verified via Press Ganey

Dr Mullen is an excellent surgeon. He is a very caring Doctor. He is very concerned about the health and progress of his patients. Always will to answer any questions and concerns. Just a wonderful Doctor . We need more Doctors like Dr Mullen .

Overall Rating: 5.0 2023-12-09

Patient verified via Press Ganey

D Mullin/staff are very kind, helpful, skilled & caring to their patients. I have already recommended them to friends.

Overall Rating: 5.0 2026-01-28

Patient verified via Press Ganey

Dr Mullin and staff lived up to references I spoke to previously. Top notch, caring, knowledgeable.

Overall Rating: 5.0 2023-12-23

Patient verified via Press Ganey

Dr Mullin is fantastic, excellent physician and surgeon, professional, caring and helpful.

Overall Rating: 5.0 2025-04-25

Patient verified via Press Ganey

Everything was fine. No complaints. Keep up the professional care. Thank you.

Overall Rating: 5.0 2023-08-19

Patient verified via Press Ganey

It was a great visit, I was treated with the utmost care and concern

Overall Rating: 5.0 2026-02-20

Patient verified via Press Ganey

The whole knee replacement program is very thorough. I'm impressed!

Overall Rating: 4.0 2024-01-31

Patient verified via Press Ganey

Waited :30 minutes in room and had to check if anyone was coming

Overall Rating: 5.0 2025-09-02

Patient verified via Press Ganey

Dr. Mullin replaced both of my hips with outstanding results

Overall Rating: 5.0 2026-03-03

Patient verified via Press Ganey

Always an exceptional and professional experience

General Payments

These charts describe general payments received by Dr. Timothy I. Mullin, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Stryker Corporation	$1,113 Mako $1,113
DePuy Synthes Sales Inc.	$1,017 Orthopaedics $253	$763
Zimmer Biomet Holdings, Inc.	$98 ROSA $98
Medtronic USA, Inc.	$75 AQUAMANTYS $75
Ethicon US, LLC	$65 DERMABOND Portfolio $65

**Types of Payments**
Travel and Lodging	$1,578
Food and Beverage	$790

Biography

Dr. Timothy Mullin is a specialist in orthopedics/orthopedic surgery. His areas of expertise include hip arthritis, knee arthritis, and total hip replacement. Dr. Mullin has a 5.0 out of 5 star average patient rating. He graduated from Medical College of Wisconsin and then he performed his residency at a hospital affiliated with Medical College of Wisconsin. His professional affiliations include Medical College of Wisconsin and Froedtert & the Medical College of Wisconsin Regional Health Network. Dr. Mullin welcomes new patients at his office inWest Bend, WI as reported by Doctor.com.