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Dr. Mark Allen McClanahan, MD

(2 Ratings)

Specializes in: Adult Endocrinology

Virginia Commonwealth University (VCU) School of Medicine (1986)

10711 Spotsylvania Avenue Building 6 Suite 319
Fredericksburg, VA 22408

(540) 891-8499

Dr. Mark Allen McClanahan, MD is an endocrinologist in Fredericksburg, VA specializing in adult endocrinology. He graduated from Virginia Commonwealth University (VCU) School of Medicine in 1986 and has 40 years of experience. Dr. Mark Allen McClanahan, MD is affiliated with Mary Washington Healthcare.

Office Locations

Mary Washington Healthcare

10711 Spotsylvania Avenue Building 6 Suite 319
Fredericksburg, VA 22408

(540) 891-8499

(540) 891-8662

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Allen McClanahan, MD in 2023

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

Top 5%

By Volume:

A1C test

blood draw

DEXA with vertebral fracture assessment

diabetes screening

fasting blood glucose test

lab tests

phlebotomy for lab tests

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2023, among providers in related specialties within Virginia, Dr. Mark Allen McClanahan, MD performed more A1C test, blood draw, DEXA with vertebral fracture assessment, diabetes screening, fasting blood glucose test, lab tests, and phlebotomy for lab tests procedures for Medicare patients than 95% of them and he also had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 95% 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.

Top 25%

By Affordability:

diabetes screening

In 2012, Dr. Mark Allen McClanahan, MD had a list price for diabetes screening that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Virginia. 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. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2012 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	1983
diabetes management	1894
doctor visit	3263
evoked potential test	34
lab tests	4016
musculoskeletal imaging	274
preventive care	3997
X-rays	274

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2013 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2045
diabetes management	1965
doctor visit	3483
lab tests	4092
musculoskeletal imaging	365
preventive care	4077
X-rays	365

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	502
Female	1003

**Ethnicity**
Non-Hispanic White	1277
Black	192
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	772
From 75 to 84	512
85 and over	120
Less than 65	101

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	38
Depression	16
Chronic Kidney Disease	22
Asthma	6
Osteoperosis	16
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	63
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2014 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2109
diabetes management	2048
doctor visit	3518
lab tests	4231
musculoskeletal imaging	315
preventive care	4231
X-rays	315

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	509
Female	1036

**Ethnicity**
Non-Hispanic White	1317
Black	192
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	807
From 75 to 84	507
85 and over	142
Less than 65	89

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	38
Depression	15
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	17
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	62
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2015 were lab tests, preventive care, diabetes management and blood draw.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	1953
diabetes management	2154
doctor visit	3654
lab tests	4483
musculoskeletal imaging	302
preventive care	4483
X-rays	302

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	1088
Female	2156

**Ethnicity**
Non-Hispanic White	2798
Black	368
Hispanic	28
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	1718
From 75 to 84	1004
85 and over	326
Less than 65	196

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	18
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	63
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2016 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2345
diabetes management	2250
doctor visit	3825
lab tests	4632
musculoskeletal imaging	352
preventive care	4632
X-rays	352

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	564
Female	1109

**Ethnicity**
Non-Hispanic White	1454
Black	173
Hispanic	0
Asian	15
Other	18
Native American	0

**Age**
From 65 to 74	860
From 75 to 84	561
85 and over	160
Less than 65	92

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2016

Hypertension	75
High Cholesterol	73
Stroke	4
Ischemic Heart Disease	36
Depression	19
Chronic Kidney Disease	51
Asthma	13
Osteoperosis	18
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	63
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2017 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2376
diabetes management	2334
doctor visit	3907
lab tests	4740
musculoskeletal imaging	354
preventive care	4740
vertebral fracture assessment (VFA)	133
X-rays	354

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	567
Female	1124

**Ethnicity**
Non-Hispanic White	1461
Black	178
Hispanic	17
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	890
From 75 to 84	548
85 and over	172
Less than 65	81

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2017

Hypertension	75
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	37
Depression	19
Chronic Kidney Disease	57
Asthma	7
Osteoperosis	18
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	63
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2018 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2476
diabetes management	2389
doctor visit	3942
lab tests	4782
musculoskeletal imaging	328
preventive care	4782
vertebral fracture assessment (VFA)	328
X-rays	328

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	552
Female	1131

**Ethnicity**
Non-Hispanic White	1470
Black	164
Hispanic	15
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	841
From 75 to 84	601
85 and over	173
Less than 65	68

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	39
Depression	20
Chronic Kidney Disease	60
Asthma	8
Osteoperosis	18
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	63
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2019 were lab tests, preventive care, diabetes management and blood draw.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2678
diabetes management	2741
doctor visit	4279
lab tests	5380
musculoskeletal imaging	285
preventive care	5380
vertebral fracture assessment (VFA)	285
X-rays	285

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	595
Female	1172

**Ethnicity**
Non-Hispanic White	1550
Black	165
Hispanic	0
Asian	17
Other	20
Native American	0

**Age**
From 65 to 74	874
From 75 to 84	632
85 and over	183
Less than 65	78

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	39
Depression	19
Chronic Kidney Disease	62
Asthma	8
Osteoperosis	18
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	64
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2020 were lab tests, preventive care, diabetes management and blood draw.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2566
diabetes management	2585
doctor visit	4167
lab tests	4969
musculoskeletal imaging	268
preventive care	4969
vertebral fracture assessment (VFA)	268
X-rays	268

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	584
Female	1133

**Ethnicity**
Non-Hispanic White	1492
Black	163
Hispanic	16
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	859
From 75 to 84	638
85 and over	151
Less than 65	69

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2020

Hypertension	75
High Cholesterol	74
Stroke	5
Ischemic Heart Disease	38
Depression	19
Chronic Kidney Disease	62
Asthma	8
Osteoperosis	17
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	64
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2021 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2481
diabetes management	2445
doctor visit	3871
lab tests	4690
musculoskeletal imaging	244
preventive care	4690
vertebral fracture assessment (VFA)	244
X-rays	244

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	558
Female	1062

**Ethnicity**
Non-Hispanic White	1418
Black	144
Hispanic	15
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	762
From 75 to 84	629
85 and over	162
Less than 65	67

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	38
Depression	18
Chronic Kidney Disease	63
Asthma	8
Osteoperosis	17
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	63
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA during 2022 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

blood draw	2418
diabetes management	2366
doctor visit	3774
lab tests	4447
musculoskeletal imaging	220
preventive care	4447
vertebral fracture assessment (VFA)	207
X-rays	220

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	537
Female	1032

**Ethnicity**
Non-Hispanic White	1388
Black	123
Hispanic	14
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	695
From 75 to 84	658
85 and over	160
Less than 65	56

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	34
Depression	17
Chronic Kidney Disease	35
Asthma	11
Osteoperosis	24
Atrial Fibrilation	19
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	63
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark Allen McClanahan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Allen McClanahan, MD treated as an endocrinologist in Fredericksburg, VA were lab tests, preventive care, blood draw and diabetes management.

blood draw	2311
diabetes management	2288
doctor visit	3789
evoked potential test	34
lab tests	4587
musculoskeletal imaging	300
preventive care	4584
vertebral fracture assessment (VFA)	244
X-rays	300

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark Allen McClanahan, MD.

**Gender**
Male	550
Female	1087

**Ethnicity**
Black / African American	169
Asian / Pacific Islander	2
Non-Hispanic White	1420
Native American / Alaskan Native	0
Hispanic	12
Other	17

**Age**
75 to 84	571
85 and over	159
Less than 65	81
65 to 74	825

Average of Total of Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	66
Stroke	4
Ischemic Heart Disease	33
Depression	16
Chronic Kidney Disease	42
Asthma	7
Osteoporosis	16
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	57
Atrial Fibrillation	11
Dementia	6
Cancer	10

Education & Training

Dr. Mark Allen McClanahan, MD graduated from Virginia Commonwealth University (VCU) School of Medicine in 1986. He completed residency at Virginia Commonwealth University (VCU) Affiliated Hospitals. He has a state license in Virginia.

Medical School: Virginia Commonwealth University (VCU) School of Medicine (1986)

Residency: Virginia Commonwealth University (VCU) Affiliated Hospitals

Licensed In: Virginia

Affiliations & Hospitals

Dr. Mark Allen McClanahan, MD is associated with these hospitals and organizations:

Mary Washington Healthcare

Ratings & Reviews

Dr. Mark Allen McClanahan, MD has a good overall rating with an average of 3.0 out of 5 stars based on 2 ratings. We collect ratings and reviews of Dr. Mark Allen McClanahan, MD from all over the web to help you find the right in Fredericksburg, VA.

Overall Rating

(2 Ratings)

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General Payments

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

**Payments by Company**
SANOFI-AVENTIS U.S. LLC	$19,516 PRALUENT $19,114	TOUJEO $286	SOLIQUA 100/33 $40	TZIELD $22	SOLIQUA $19	Other $35
E.R. Squibb & Sons, L.L.C.	$6,914 BYDUREON $5,156	ONGLYZA $1,759
AstraZeneca Pharmaceuticals LP	$1,130 FARXIGA $728	BYDUREON $287	BYDUREON PEN $90	CRESTOR $10	$15
Zealand Pharma US, Inc.	$674 V-GO $329	V-GO DISPOSABLE INSULIN DELIVERY $309	ZEGALOGUE $36
Merck Sharp & Dohme Corporation	$587 JANUMET XR $228	STEGLATRO $207	STEGLUJAN $99	ZEMURON $14	$39
Other	$3,688 JARDIANCE $549	V-GO $548	TEPEZZA $187	Pogo Automatic Blood Glucose Monitoring System $125	INVOKANA $107	Other $2,171

**Types of Payments**
Consulting Fee	$19,114
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$7,050
Food and Beverage	$5,835
Education	$373
Honoraria	$100
Other	$38

Research Payments

Dr. Mark Allen McClanahan, MD has received 59 research payments totaling $55,843.

Biography

Dr. Mark McClanahan is an adult endocrinology specialist. Dr. McClanahan attended medical school at Virginia Commonwealth University (VCU) School of Medicine. He trained at a hospital affiliated with Virginia Commonwealth University (VCU) for residency. He is professionally affiliated with Mary Washington Healthcare.

Select Year:

Dr. Mark Allen McClanahan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mark Allen McClanahan, MD in 2023

By Volume:

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Mark Allen McClanahan, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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