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Home > MO Providers > Plastic Surgeons

Dr. Cara E. Hahs, MD

(Cara E. Hahs, MD)

(124 Ratings)

Specializes in: Plastic Surgery

University of South Carolina School of Medicine

Professional interests include: breast surgery

15945 Clayton Road Suite 120A Mercy Breast Surgery
Ballwin, MO 63011

(636) 256-5000

Dr. Cara E. Hahs, MD is a plastic surgeon in Ballwin, MO specializing in plastic surgery. She graduated from University of South Carolina School of Medicine. Dr. Cara E. Hahs, MD is affiliated with Mercy Health System, Mercy Hospital St. Louis and Mercy Breast Surgery - Clayton-Clarkson.

Office Locations

15945 Clayton Road Suite 120A Mercy Breast Surgery
Ballwin, MO 63011

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Noteworthy Medicare Patient Procedures Performed by Dr. Cara E. Hahs, MD in 2023

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

Top 5%

By Volume:

lymph node procedures

open lymph node biopsy

In 2023, Dr. Cara E. Hahs, MD performed more lymph node procedures, and open lymph node biopsy procedures for Medicare patients than 95% of providers in related specialties within Missouri.

Top 10%

By Volume:

breast surgery

In 2023, Dr. Cara E. Hahs, MD performed more breast surgery procedures for Medicare patients than 90% of providers in related specialties within Missouri.

Top 25%

By Volume:

biopsy

breast cancer surgery

excision

partial mastectomy

In 2012, Dr. Cara E. Hahs, MD performed more biopsy, breast cancer surgery, excision, and partial mastectomy procedures for Medicare patients than 75% of providers in related specialties within Missouri.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2012 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	18
cancer surgery	18
catheterization	14
diagnostic procedures	17
doctor visit	126
excision	35
lymph node procedures	34
open surgery	17

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2013 were lymph node procedures, catheterization, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

catheterization	20
diagnostic procedures	15
doctor visit	91
excision	15
lymph node procedures	31
open surgery	15

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Age**
From 65 to 74	72
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2013

Hypertension	62
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	12
Depression	21
Chronic Kidney Disease	10
Asthma	12
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2014 were catheterization, device removal, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

catheterization	19
device removal	12
diagnostic procedures	11
doctor visit	142
excision	11
lymph node procedures	11
open surgery	11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	130
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2014

Hypertension	56
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	12
Depression	28
Chronic Kidney Disease	10
Asthma	12
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	72

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2015 were excision, lymph node procedures, breast procedures and open surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	27
cancer surgery	16
catheterization	18
device removal	13
diagnostic procedures	27
doctor visit	173
excision	43
lymph node procedures	32
open surgery	27

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	298
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2015

Hypertension	60
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	17
Depression	29
Chronic Kidney Disease	21
Asthma	8
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	7
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	0
Cancer	67

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2016 were excision, lymph node procedures, breast procedures and open surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	50
cancer surgery	30
diagnostic procedures	47
doctor visit	426
excision	77
lymph node procedures	55
open surgery	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	349
Black	18
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	250
From 75 to 84	79
85 and over	24
Less than 65	29

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2016

Hypertension	59
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	16
Depression	27
Chronic Kidney Disease	16
Asthma	14
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	21
Dementia	5
Cancer	58

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2017 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	22
cancer surgery	22
diagnostic procedures	15
doctor visit	419
excision	37
lymph node procedures	31
open surgery	15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	342
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	89
85 and over	21
Less than 65	33

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2017

Hypertension	56
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	18
Depression	28
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	6
Cancer	62

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2018 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	17
cancer surgery	17
diagnostic procedures	11
doctor visit	374
excision	28
lymph node procedures	22
open surgery	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Gender**
Male	0
Female	352

**Ethnicity**
Non-Hispanic White	326
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	220
From 75 to 84	85
85 and over	17
Less than 65	30

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2018

Hypertension	55
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	16
Depression	31
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	16
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	5
Cancer	63

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2019 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	32
cancer surgery	32
diagnostic procedures	26
doctor visit	395
excision	58
lymph node procedures	53
open surgery	26

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	319
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	84
85 and over	15
Less than 65	17

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2019

Hypertension	57
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	18
Depression	26
Chronic Kidney Disease	22
Asthma	8
Osteoperosis	16
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	7
Diabetes	19
Dementia	4
Cancer	64

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2020 were lymph node procedures.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

doctor visit	373
lymph node procedures	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	329
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	90
85 and over	16
Less than 65	22

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2020

Hypertension	56
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	18
Depression	24
Chronic Kidney Disease	21
Asthma	6
Osteoperosis	15
Atrial Fibrilation	6
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	18
Dementia	4
Cancer	64

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2021 were excision, lymph node procedures, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	38
cancer surgery	26
diagnostic procedures	39
doctor visit	357
excision	65
lymph node procedures	55
open surgery	39

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	294
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	87
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2021

Hypertension	54
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	15
Depression	27
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	15
Atrial Fibrilation	6
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	18
Dementia	4
Cancer	70

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO during 2022 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

breast procedures	35
cancer surgery	35
diagnostic procedures	34
doctor visit	320
excision	69
lymph node procedures	68
open surgery	34

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Ethnicity**
Non-Hispanic White	265
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	94
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD in 2022

Hypertension	66
High Cholesterol	73
Stroke	4
Ischemic Heart Disease	14
Depression	19
Chronic Kidney Disease	19
Asthma	11
Osteoperosis	29
Atrial Fibrilation	11
Heart Failure	7
Chronic Obstructive Pulmonary Disease	7
Diabetes	21
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Cara E. Hahs, MD for Medicare patients.

The highest averages for the top procedures that Dr. Cara E. Hahs, MD treated as a plastic surgeon in Ballwin, MO were excision, lymph node procedures, breast procedures and open surgery.

breast procedures	29
cancer surgery	24
catheterization	17
device removal	12
diagnostic procedures	24
doctor visit	290
excision	43
lymph node procedures	36
open surgery	24

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Cara E. Hahs, MD.

**Gender**
Male	0
Female	32

**Ethnicity**
Black / African American	7
Asian / Pacific Islander	0
Non-Hispanic White	241
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	64
85 and over	8
Less than 65	11
65 to 74	176

Average of Total of Conditions of Medicare patients treated by Dr. Cara E. Hahs, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Cara E. Hahs, MD treated were cancer, hypertension, high cholesterol and depression.

Hypertension	52
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	14
Depression	23
Chronic Kidney Disease	16
Asthma	8
Osteoporosis	13
Heart Failure	5
Chronic Obstructive Pulmonary Disease	5
Diabetes	18
Atrial Fibrillation	5
Dementia	2
Cancer	60

Education & Training

Dr. Cara E. Hahs, MD graduated from University of South Carolina School of Medicine. She completed residency at University of Missouri-Kansas City (UMKC) Affiliated Hospitals. She is certified by the American Board of Surgery and has a state license in Missouri.

Medical School: University of South Carolina School of Medicine

Residency: University of Missouri-Kansas City (UMKC) Affiliated Hospitals

Board Certification: American Board of Surgery

Licensed In: Missouri

Affiliations & Hospitals

Dr. Cara E. Hahs, MD is associated with these hospitals and organizations:

Mercy Health System

Mercy Hospital St. Louis

Mercy Breast Surgery - Clayton-Clarkson

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Cara E. Hahs, MD appears to accept the following insurance providers: WellCare Medicare Advantage, United Healthcare, Aetna, Humana, Cigna, Anthem BlueCross BlueShield, HealthLink, Health Net Federal Services, HFN, Inc., MultiPlan/PHCS, Home State Health, Medica, Healthy Blue (formerly Missouri Care), NHC Advantage, Live360 (Health Choices Network), Sterling Medicare, Essence, PPHP (Provider Partners Health Plan) and Ascension Smart Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Cara E. Hahs, MD accepts the following insurance providers:

WellCare Medicare Advantage

United Healthcare

Aetna

Humana

Cigna

Anthem BlueCross BlueShield

HealthLink

Health Net Federal Services

HFN, Inc.

MultiPlan/PHCS

Home State Health

Medica

Healthy Blue (formerly Missouri Care)

NHC Advantage

Live360 (Health Choices Network)

Sterling Medicare

Essence

PPHP (Provider Partners Health Plan)

Ascension Smart Health

Ratings & Reviews

Dr. Cara E. Hahs, MD has an exceptional overall rating with an average of 4.99 out of 5 stars based on 124 ratings. We collect ratings and reviews of Dr. Cara E. Hahs, MD from all over the web to help you find the right in Ballwin, MO.

4.99

Overall Rating

(124 Ratings)

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General Payments

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

**Payments by Company**
Focal Therapeutics, Inc.	$177 BioZorb $163	localizer $14
Medtronic Xomed, Inc.	$98 Advanced Energy Cutting Device $98
Genentech USA, Inc.	$83 Perjeta $55	Kadcyla $14	Herceptin $14
Amgen Inc.	$46 XGEVA $46
Pharmacyclics LLC, An AbbVie Company	$35 IMBRUVICA $35
Other	$256 Revlimid $30	LYNPARZA $29	Ixempra $28	localizer $21	Cabometyx $19	Other $129

**Types of Payments**
Food and Beverage	$695

Biography

Dr. Cara Hahs, who practices in Ballwin, MO, is a medical specialist in plastic surgery. Her clinical interests include breast surgery. She is professionally affiliated with Mercy Hospital St. Louis. Dr. Hahs attended the University of South Carolina School of Medicine and subsequently trained at a hospital affiliated with the University of Missouri-Kansas City (UMKC) for residency. Dr. Hahs's average rating from her patients is 5.0 stars (out of 5). She accepts Anthem, Blue California, HFN, and more. She has a closed panel according to Yext.