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Dr. Jennifer M. Lewis, MD

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Specializes in: Adult Gastroenterology

American University of the Caribbean School of Medicine

330 Borthwick Avenue Suite 311
Portsmouth, NH 03801

(603) 433-2488

Dr. Jennifer M. Lewis, MD is a gastroenterologist in Somersworth, NH specializing in adult gastroenterology. She graduated from American University of the Caribbean School of Medicine. Dr. Jennifer M. Lewis, MD is affiliated with Wentworth-Douglass Hospital, Portsmouth Regional Hospital, York Hospital and Portsmouth Regional Hospital Frisbie Memorial Hospital.

Office Locations

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21 Clark Way Route 108
Somersworth, NH 03878

(603) 692-2228

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22 Bramhall Street
Portland, ME 04102

(207) 662-4618

(207) 662-6254

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Wentworth-Douglass Hospital

330 Borthwick Avenue Suite 311
Portsmouth, NH 03801

(603) 433-2488

(603) 692-4748

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4 West Road
Stratham, NH 03885

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Noteworthy Medicare Patient Procedures Performed by Dr. Jennifer M. Lewis, MD in 2024

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

Top 5%

By Volume:

colonoscopy

colonoscopy with biopsy

colonoscopy with lesion removal

endoscopy

gastrointestinal biopsy

gastrointestinal procedures

removal of lesion

In 2024, Dr. Jennifer M. Lewis, MD performed more colonoscopy, colonoscopy with biopsy, colonoscopy with lesion removal, endoscopy, gastrointestinal biopsy, gastrointestinal procedures, and removal of lesion (e.g. growth) procedures for Medicare patients than 95% of providers in related specialties within New Hampshire.

Top 10%

By Volume:

EGD with biopsy

EGD with esophageal dilation

EGD with lesion removal

esophageal balloon dilation

esophageal dilation

inpatient hospital care

In 2024, Dr. Jennifer M. Lewis, MD performed more EGD with biopsy, EGD with esophageal dilation, EGD with lesion removal, esophageal balloon dilation, esophageal dilation, and inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 90% of providers in related specialties within New Hampshire.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

hospital care	75
inpatient care	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2015 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

diagnostic procedures	11
gastrointestinal procedures	11
hospital care	75
inpatient care	75
minimally invasive procedures	11
removal of lesion (e.g. growth)	11

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	52
Female	70

**Age**
From 65 to 74	0
From 75 to 84	46
85 and over	36
Less than 65	0

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2015

Hypertension	75
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	39
Depression	39
Chronic Kidney Disease	51
Asthma	28
Osteoperosis	0
Atrial Fibrilation	23
Heart Failure	39
Chronic Obstructive Pulmonary Disease	28
Diabetes	34
Dementia	18
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

diagnostic procedures	114
doctor visit	182
gastrointestinal procedures	129
hospital care	421
inpatient care	421
minimally invasive procedures	129
removal of lesion (e.g. growth)	114

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	131
Female	181

**Ethnicity**
Non-Hispanic White	285
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	101
85 and over	87
Less than 65	44

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2016

Hypertension	75
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	49
Depression	41
Chronic Kidney Disease	52
Asthma	28
Osteoperosis	13
Atrial Fibrilation	24
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	32
Dementia	24
Cancer	17

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2017 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

diagnostic procedures	79
doctor visit	150
gastrointestinal procedures	79
hospital care	305
inpatient care	305
minimally invasive procedures	79
removal of lesion (e.g. growth)	79

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	131
Female	159

**Ethnicity**
Non-Hispanic White	262
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	85
85 and over	64
Less than 65	51

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2017

Hypertension	75
High Cholesterol	64
Stroke	11
Ischemic Heart Disease	49
Depression	44
Chronic Kidney Disease	52
Asthma	14
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	34
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	29
Cancer	18

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

biological response modifier (BRM) therapy	21
chemotherapy	21
diagnostic procedures	185
doctor visit	351
gastrointestinal procedures	196
hospital care	168
inpatient care	168
minimally invasive procedures	241
removal of lesion (e.g. growth)	185

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	144
Female	264

**Ethnicity**
Non-Hispanic White	387
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	162
From 75 to 84	121
85 and over	40
Less than 65	85

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2018

Hypertension	75
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	44
Depression	40
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	25
Chronic Obstructive Pulmonary Disease	25
Diabetes	35
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2019 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

balloon dilation	20
biological response modifier (BRM) therapy	31
chemotherapy	31
diagnostic procedures	188
doctor visit	385
esophageal dilation	20
gastrointestinal procedures	225
hospital care	198
inpatient care	198
minimally invasive procedures	274
removal of lesion (e.g. growth)	188

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	147
Female	321

**Ethnicity**
Non-Hispanic White	448
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	126
85 and over	61
Less than 65	92

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2019

Hypertension	74
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	40
Depression	42
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	24
Diabetes	32
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

balloon dilation	43
biological response modifier (BRM) therapy	31
chemotherapy	31
diagnostic procedures	319
doctor visit	251
esophageal dilation	43
gastrointestinal procedures	379
hospital care	314
inpatient care	314
minimally invasive procedures	434
removal of lesion (e.g. growth)	319

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	244
Female	432

**Ethnicity**
Non-Hispanic White	651
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	282
From 75 to 84	191
85 and over	80
Less than 65	123

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2020

Hypertension	67
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	35
Depression	35
Chronic Kidney Disease	35
Asthma	11
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	29
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

balloon dilation	30
biological response modifier (BRM) therapy	21
chemotherapy	21
diagnostic procedures	364
doctor visit	274
esophageal dilation	30
gastrointestinal procedures	420
hospital care	251
inpatient care	251
liver imaging	15
minimally invasive procedures	457
removal of lesion (e.g. growth)	364
ultrasound (sonogram)	15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	243
Female	420

**Ethnicity**
Non-Hispanic White	628
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	284
From 75 to 84	202
85 and over	82
Less than 65	95

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2021

Hypertension	71
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	33
Depression	33
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	32
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

balloon dilation	38
diagnostic procedures	415
doctor visit	295
esophageal dilation	38
gastrointestinal procedures	474
hospital care	222
inpatient care	222
liver imaging	19
minimally invasive procedures	495
removal of lesion (e.g. growth)	415
ultrasound (sonogram)	19

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	214
Female	390

**Ethnicity**
Non-Hispanic White	572
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	283
From 75 to 84	186
85 and over	68
Less than 65	67

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2022

Hypertension	71
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	26
Depression	30
Chronic Kidney Disease	22
Asthma	12
Osteoperosis	13
Atrial Fibrilation	21
Heart Failure	18
Chronic Obstructive Pulmonary Disease	20
Diabetes	25
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2023 were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

balloon dilation	32
biological response modifier (BRM) therapy	20
chemotherapy	20
diagnostic procedures	369
doctor visit	379
esophageal dilation	32
gastrointestinal procedures	433
hospital care	193
inpatient care	193
liver imaging	23
minimally invasive procedures	471
preventive care	12
removal of lesion (e.g. growth)	369
ultrasound (sonogram)	23

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	228
Female	413

**Ethnicity**
Non-Hispanic White	608
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	290
From 75 to 84	216
85 and over	70
Less than 65	65

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2023

Hypertension	70
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	25
Depression	26
Chronic Kidney Disease	18
Asthma	12
Osteoperosis	15
Atrial Fibrilation	22
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	26
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH during 2024 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

balloon dilation	35
diagnostic procedures	436
doctor visit	280
esophageal dilation	35
gastrointestinal procedures	502
hospital care	246
inpatient care	246
minimally invasive procedures	516
preventive care	13
removal of lesion (e.g. growth)	436

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Male	240
Female	363

**Ethnicity**
Non-Hispanic White	567
Black	0
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	212
85 and over	65
Less than 65	49

Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD in 2024

Hypertension	70
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	24
Depression	26
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	15
Atrial Fibrilation	21
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	9
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Jennifer M. Lewis, MD for Medicare patients.

The highest averages for the top procedures that Dr. Jennifer M. Lewis, MD treated as a gastroenterologist in Somersworth, NH were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

balloon dilation	33
biological response modifier (BRM) therapy	24
chemotherapy	24
diagnostic procedures	248
doctor visit	283
esophageal dilation	33
gastrointestinal procedures	284
hospital care	224
inpatient care	224
liver imaging	19
minimally invasive procedures	310
preventive care	12
removal of lesion (e.g. growth)	248
ultrasound (sonogram)	19

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Jennifer M. Lewis, MD.

**Gender**
Female	273
Male	161

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	400
Native American / Alaskan Native	0
Hispanic	2
Other	2

**Age**
75 to 84	135
85 and over	59
Less than 65	61
65 to 74	176

Average of Total of Conditions of Medicare patients treated by Dr. Jennifer M. Lewis, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Jennifer M. Lewis, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	65
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	33
Depression	32
Chronic Kidney Disease	32
Asthma	12
Osteoporosis	9
Heart Failure	23
Chronic Obstructive Pulmonary Disease	20
Diabetes	27
Atrial Fibrillation	17
Dementia	13
Cancer	14

Education & Training

Dr. Jennifer M. Lewis, MD graduated from American University of the Caribbean School of Medicine. She completed residency at Maine Medical Center. She is certified by the American Board of Internal Medicine: Gastroenterology and Hepatology and has a state license in Maine.

Medical School: American University of the Caribbean School of Medicine

Residency: Maine Medical Center

Board Certification: American Board of Internal Medicine: Gastroenterology and Hepatology

Licensed In: Maine

Affiliations & Hospitals

Dr. Jennifer M. Lewis, MD is associated with these hospitals and organizations:

Wentworth-Douglass Hospital

Portsmouth Regional Hospital

York Hospital

Portsmouth Regional Hospital Frisbie Memorial Hospital

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General Payments

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

**Payments by Company**
AbbVie Inc.	$384 Skyrizi $146	Rinvoq $73	LINZESS $64	Mavyret $50	Creon $31	Other $19
Boston Scientific Corporation	$244 SPYGLASS $104	GENERAL BILIARY DEVICES $74	AXIOS $66
AbbVie, Inc.	$224 Humira $127	Mavyret $72	Creon $26
Wilson Cook Medical Incorporated	$206 Cook Medical Hemospray $79	Cook Medical Evolution $72	Cook Medical Captura Forceps $54
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$176 XIFAXAN $115	Trulance $32	PLENVU $29
Other	$1,020 DUPIXENT $140	STELARA $89	Ocaliva $89	Epclusa $78	LINZESS $75	Other $548

**Types of Payments**
Food and Beverage	$2,186
Education	$68

Biography

Dr. Jennifer Lewis' area of specialization is adult gastroenterology. Dr. Lewis obtained her medical school training at American University of the Caribbean School of Medicine and performed her residency at Maine Medical Center. She is affiliated with Portsmouth Regional Hospital, York Hospital, and Wentworth-Douglass Hospital.