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Dr. Jacqueline Jonklaas, MD

Accepting New Patients

(5 Ratings)

Specializes in: Adult Endocrinology

Georgetown University School of Medicine (1993)

3800 Reservoir Road Northwest
Washington, DC 20007

(202) 444-6200

Dr. Jacqueline Jonklaas, MD is an endocrinologist in Washington, DC specializing in adult endocrinology. She graduated from Georgetown University School of Medicine in 1993 and has 33 years of experience.

Office Locations

3800 Reservoir Road Northwest
Washington, DC 20007

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In The News

“At the recent American Association of Clinical Endocrinology (AACE) annual meeting, thyroid disease and its impact on body weight was highlighted in a keynote by Jacqueline Jonklaas, MD, from...”—"Thyroid and Weight: Exploring a Complex Link at AACE 2025", MedPage Today, June 2025

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	62
hospital care	81
inpatient care	81

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	45
hospital care	97
inpatient care	97

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	23
Female	51

**Ethnicity**
Non-Hispanic White	39
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	32
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2013

Hypertension	69
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	30
Asthma	16
Osteoperosis	15
Atrial Fibrilation	0
Heart Failure	24
Chronic Obstructive Pulmonary Disease	0
Diabetes	39
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	66
hospital care	131
inpatient care	131

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	32
Female	59

**Ethnicity**
Non-Hispanic White	40
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2014

Hypertension	75
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	32
Depression	19
Chronic Kidney Disease	38
Asthma	16
Osteoperosis	19
Atrial Fibrilation	0
Heart Failure	26
Chronic Obstructive Pulmonary Disease	0
Diabetes	47
Dementia	0
Cancer	21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	90
hospital care	119
inpatient care	119

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	56
Female	134

**Ethnicity**
Non-Hispanic White	96
Black	68
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	0
85 and over	0
Less than 65	38

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2015

Hypertension	66
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	19
Depression	19
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	20
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	39
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	83
hospital care	134
inpatient care	134

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	37
Female	81

**Ethnicity**
Non-Hispanic White	60
Black	39
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	0
85 and over	0
Less than 65	29

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2016

Hypertension	70
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	31
Depression	15
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	32
Chronic Obstructive Pulmonary Disease	0
Diabetes	43
Dementia	14
Cancer	17

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	87

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	25
Female	57

**Ethnicity**
Non-Hispanic White	46
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	45
From 75 to 84	21
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2017

Hypertension	70
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	23
Depression	17
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	26
Atrial Fibrilation	0
Heart Failure	21
Chronic Obstructive Pulmonary Disease	0
Diabetes	38
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	79
hospital care	149
inpatient care	149

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	38
Female	73

**Ethnicity**
Non-Hispanic White	63
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2018

Hypertension	75
High Cholesterol	66
Stroke	13
Ischemic Heart Disease	37
Depression	27
Chronic Kidney Disease	51
Asthma	13
Osteoperosis	16
Atrial Fibrilation	15
Heart Failure	26
Chronic Obstructive Pulmonary Disease	14
Diabetes	50
Dementia	16
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	70
hospital care	13
inpatient care	13

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	27
Female	55

**Ethnicity**
Non-Hispanic White	54
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2019

Hypertension	59
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	37
Depression	29
Chronic Kidney Disease	29
Asthma	13
Osteoperosis	22
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	27

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	66
hospital care	316
inpatient care	316

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	64
Female	86

**Ethnicity**
Non-Hispanic White	81
Black	50
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	0
85 and over	0
Less than 65	34

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2020

Hypertension	70
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	41
Depression	35
Chronic Kidney Disease	54
Asthma	9
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	32
Chronic Obstructive Pulmonary Disease	12
Diabetes	49
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	69
hospital care	153
inpatient care	153

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	36
Female	66

**Ethnicity**
Non-Hispanic White	57
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2021

Hypertension	70
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	34
Depression	26
Chronic Kidney Disease	46
Asthma	0
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	14
Diabetes	42
Dementia	15
Cancer	21

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

doctor visit	80
hospital care	178
inpatient care	178

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	31
Female	79

**Ethnicity**
Non-Hispanic White	59
Black	33
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	34
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	29
Depression	27
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	19
Atrial Fibrilation	18
Heart Failure	22
Chronic Obstructive Pulmonary Disease	11
Diabetes	40
Dementia	13
Cancer	25

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Jacqueline Jonklaas, MD for Medicare patients.

The highest averages for the top procedures that Dr. Jacqueline Jonklaas, MD treated as an endocrinologist in Washington, DC were hospital care and inpatient care.

doctor visit	72
hospital care	137
inpatient care	137

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Jacqueline Jonklaas, MD.

**Gender**
Male	33
Female	67

**Ethnicity**
Black / African American	30
Asian / Pacific Islander	0
Non-Hispanic White	54
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	13
85 and over	0
Less than 65	9
65 to 74	51

Average of Total of Conditions of Medicare patients treated by Dr. Jacqueline Jonklaas, MD From 2012 - 2022

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

Hypertension	63
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	35
Asthma	7
Osteoporosis	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	5
Diabetes	38
Atrial Fibrillation	7
Dementia	7
Cancer	17

Education & Training

Dr. Jacqueline Jonklaas, MD graduated from Georgetown University School of Medicine in 1993. She completed residency at Georgetown University Hospital. She is certified by the American Board of Internal Medicine: Endocrinology, Diabetes and Metabolism and has a state license in District of Columbia.

Medical School: Georgetown University School of Medicine (1993)

Residency: Georgetown University Hospital (1996)

Board Certification: American Board of Internal Medicine: Endocrinology, Diabetes and Metabolism

Licensed In: District of Columbia

Ratings & Reviews

Dr. Jacqueline Jonklaas, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Jacqueline Jonklaas, MD from all over the web to help you find the right in Washington, DC.

Overall Rating

(5 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2022-06-29

Patient verified via Press Ganey

Dr. Jonklaas is an outstanding doctor. She has been my doctor for many years. I feel fortunate to have such a competent and compassionate doctor.

Overall Rating: 5.0 2024-11-20

Patient verified via Press Ganey

Dr. Jonklaas is a very caring and empathetic doctor

Overall Rating: 5.0 2022-04-27

Patient verified via Press Ganey

Dr. Jonklaas is excellent and caring.

Overall Rating: 5.0 2024-05-18

Patient verified via Press Ganey

Dr. Jonklaas is the BEST!!!!!!

Overall Rating: 5.0 2025-03-14

Patient verified via Press Ganey

Very good

General Payments

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

**Payments by Company**
Merck Sharp & Dohme Corporation	$14 LIPTRUZET $14

**Types of Payments**
Food and Beverage	$14

Biography

Dr. Jacqueline Jonklaas is a specialist in adult endocrinology. She graduated from Georgetown University School of Medicine and then she performed her residency at Georgetown University Hospital. Patients rated Dr. Jonklaas highly, giving her an average of 5.0 stars (out of 5). According to Doctor.com, new patients are welcome to contact her office in Washington, DC.