Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers

Dr. Peter M. Rosenberg, MD

(159 Ratings)

Specializes in: Adult Gastroenterology

Harvard Medical School (1993)

Professional interests include: ERCP (biliary and pancreatic endoscopy), colonoscopy, colorectal cancer screening, and more.

50 Alessandro Place Suite 410
Pasadena, CA 91105

(626) 659-5417

Dr. Peter M. Rosenberg, MD is a gastroenterologist in Pasadena, CA specializing in adult gastroenterology. He graduated from Harvard Medical School in 1993 and has 33 years of experience. Dr. Peter M. Rosenberg, MD is affiliated with Unio Specialty Care, Unio Specialty Care and GENESIS HEALTHCARE PARTNERS PC.

Office Locations

Unio Specialty Care

50 Alessandro Place Suite 410
Pasadena, CA 91105

(626) 659-5417

(818) 889-0408

open_in_new

Some issues Dr. Peter M. Rosenberg, MD can help you with:

Colonoscopy

Colonoscopy is the use of a special tool called a colonoscope (a thin, flexible tube with a camera on the end) to examine the inside of the colon and rectum. The tube is typically inserted anally, and it allows the physician to examine the large intestine from the inside. It may be done at any time to diagnose bowel problems, but routine colonoscopies are advised after the age of 50 to screen for colon cancer.

A colonoscopy may be performed to diagnose:

Intestinal ulcers
Polyps
Bowel cancer
An unidentified source of pain or bleeding in the intestine

Patients may be asked to drink only liquids in the days before a colonoscopy, or they may be given an enema to remove residual fecal matter. Before the exam, patients are given medication to help them relax, and then lay on their side on a table. The scope is inserted into the anus and gently moved all the way through the large intestine. Air may be pumped into the intestine to improve the view for the physician. Any polyps that are found will be removed. Then the colonoscope will be withdrawn. A colonoscopy is not usually painful, but patients may feel some bloating or have some cramps right afterward. If patients have polyps removed, they might experience a small amount of bleeding. Any side effects should go away within a few hours.

Noteworthy Medicare Patient Procedures Performed by Dr. Peter M. Rosenberg, MD in 2023

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

Top 25%

By Volume:

inpatient hospital care

By Affordability:

chronic care

diagnostic EGD

diagnostic EGD without biopsy

diagnostic upper endoscopy

EGD with biopsy

EGD with lesion removal

esophagogastroduodenoscopy

therapeutic EGD

therapeutic upper endoscopy

upper endoscopy

upper endoscopy with biopsy

upper endoscopy with lesion removal

In 2012, among providers in related specialties within California, Dr. Peter M. Rosenberg, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of them and he also had a list price for chronic care, diagnostic EGD, diagnostic EGD without biopsy, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophagogastroduodenoscopy (EGD), therapeutic EGD, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, and upper endoscopy with lesion removal 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. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2012 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	116
doctor visit	401
gastrointestinal procedures	191
hospital care	183
inpatient care	183
minimally invasive procedures	203
preventive care	51
removal of lesion (e.g. growth)	116

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	109
doctor visit	363
gastrointestinal procedures	197
hospital care	261
inpatient care	261
minimally invasive procedures	197
preventive care	56
removal of lesion (e.g. growth)	109

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	137
Female	213

**Ethnicity**
Non-Hispanic White	240
Black	0
Hispanic	45
Asian	41
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	121
85 and over	63
Less than 65	35

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2013

Hypertension	72
High Cholesterol	58
Stroke	7
Ischemic Heart Disease	45
Depression	30
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	15
Atrial Fibrilation	18
Heart Failure	26
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	15
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2014 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	141
doctor visit	368
gastrointestinal procedures	242
hospital care	239
inpatient care	239
minimally invasive procedures	253
preventive care	72
removal of lesion (e.g. growth)	141

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	164
Female	249

**Ethnicity**
Non-Hispanic White	289
Black	0
Hispanic	64
Asian	37
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	130
85 and over	65
Less than 65	38

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2014

Hypertension	70
High Cholesterol	55
Stroke	8
Ischemic Heart Disease	43
Depression	24
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	14
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	136
doctor visit	395
gastrointestinal procedures	220
hospital care	255
inpatient care	255
minimally invasive procedures	231
preventive care	52
removal of lesion (e.g. growth)	136

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	316
Female	466

**Ethnicity**
Non-Hispanic White	554
Black	36
Hispanic	78
Asian	76
Other	38
Native American	0

**Age**
From 65 to 74	342
From 75 to 84	248
85 and over	118
Less than 65	74

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2015

Hypertension	70
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	41
Depression	31
Chronic Kidney Disease	36
Asthma	14
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	24
Chronic Obstructive Pulmonary Disease	17
Diabetes	34
Dementia	17
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2016 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	126
doctor visit	477
gastrointestinal procedures	231
hospital care	201
inpatient care	201
minimally invasive procedures	231
preventive care	73
removal of lesion (e.g. growth)	126

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	164
Female	294

**Ethnicity**
Non-Hispanic White	309
Black	33
Hispanic	55
Asian	43
Other	18
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	131
85 and over	68
Less than 65	41

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2016

Hypertension	66
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	36
Depression	24
Chronic Kidney Disease	28
Asthma	15
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	114
doctor visit	487
gastrointestinal procedures	219
hospital care	253
inpatient care	253
minimally invasive procedures	219
preventive care	66
removal of lesion (e.g. growth)	114

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	140
Female	289

**Ethnicity**
Non-Hispanic White	284
Black	23
Hispanic	53
Asian	43
Other	26
Native American	0

**Age**
From 65 to 74	208
From 75 to 84	125
85 and over	58
Less than 65	38

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2017

Hypertension	63
High Cholesterol	49
Stroke	7
Ischemic Heart Disease	39
Depression	30
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2018 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	152
doctor visit	537
esophageal dilation	12
gastrointestinal procedures	239
hospital care	229
inpatient care	229
minimally invasive procedures	239
preventive care	44
removal of lesion (e.g. growth)	152

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	158
Female	276

**Ethnicity**
Non-Hispanic White	296
Black	21
Hispanic	66
Asian	37
Other	14
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	136
85 and over	66
Less than 65	35

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2018

Hypertension	68
High Cholesterol	58
Stroke	7
Ischemic Heart Disease	38
Depression	26
Chronic Kidney Disease	37
Asthma	11
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2019 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

diagnostic procedures	126
doctor visit	461
gastrointestinal procedures	202
hospital care	162
inpatient care	162
minimally invasive procedures	202
preventive care	43
removal of lesion (e.g. growth)	126

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	143
Female	264

**Ethnicity**
Non-Hispanic White	274
Black	18
Hispanic	55
Asian	43
Other	17
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	141
85 and over	52
Less than 65	24

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2019

Hypertension	66
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	40
Depression	29
Chronic Kidney Disease	35
Asthma	10
Osteoperosis	18
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2020 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

chronic care	20
diagnostic procedures	113
doctor visit	426
gastrointestinal procedures	152
hospital care	149
inpatient care	149
minimally invasive procedures	152
preventive care	20
removal of lesion (e.g. growth)	113

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	140
Female	219

**Ethnicity**
Non-Hispanic White	246
Black	18
Hispanic	41
Asian	38
Other	16
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	117
85 and over	54
Less than 65	21

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2020

Hypertension	64
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	39
Depression	25
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	16
Atrial Fibrilation	15
Heart Failure	28
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2021 were chronic care, minimally invasive procedures, gastrointestinal procedures and hospital care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

chronic care	321
diagnostic procedures	124
doctor visit	408
gastrointestinal procedures	198
hospital care	147
inpatient care	147
minimally invasive procedures	198
preventive care	43
removal of lesion (e.g. growth)	124

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	150
Female	259

**Ethnicity**
Non-Hispanic White	259
Black	19
Hispanic	52
Asian	57
Other	22
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	148
85 and over	61
Less than 65	19

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2021

Hypertension	67
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	39
Depression	24
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	18
Atrial Fibrilation	12
Heart Failure	28
Chronic Obstructive Pulmonary Disease	12
Diabetes	34
Dementia	17
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA during 2022 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

chronic care	127
diagnostic procedures	164
doctor visit	443
esophageal dilation	17
gastrointestinal procedures	292
hospital care	175
inpatient care	175
minimally invasive procedures	303
preventive care	69
removal of lesion (e.g. growth)	164

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	176
Female	281

**Ethnicity**
Non-Hispanic White	303
Black	24
Hispanic	49
Asian	58
Other	23
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	173
85 and over	73
Less than 65	24

Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	25
Asthma	15
Osteoperosis	21
Atrial Fibrilation	22
Heart Failure	22
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	12
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Peter M. Rosenberg, MD for Medicare patients.

The highest averages for the top procedures that Dr. Peter M. Rosenberg, MD treated as a gastroenterologist in Pasadena, CA were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

chronic care	156
diagnostic procedures	129
doctor visit	433
esophageal dilation	14
gastrointestinal procedures	216
hospital care	204
inpatient care	204
minimally invasive procedures	220
preventive care	53
removal of lesion (e.g. growth)	129

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Peter M. Rosenberg, MD.

**Gender**
Male	153
Female	255

**Ethnicity**
Black / African American	17
Asian / Pacific Islander	43
Non-Hispanic White	277
Native American / Alaskan Native	0
Hispanic	50
Other	15

**Age**
75 to 84	133
85 and over	61
Less than 65	31
65 to 74	181

Average of Total of Conditions of Medicare patients treated by Dr. Peter M. Rosenberg, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Peter M. Rosenberg, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	61
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	29
Asthma	10
Osteoporosis	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Atrial Fibrillation	14
Dementia	13
Cancer	14

Education & Training

Dr. Peter M. Rosenberg, MD graduated from Harvard Medical School in 1993. He completed residency at Massachusetts General Hospital. He has a state license in California.

Medical School: Harvard Medical School (1993)

Residency: Massachusetts General Hospital

Licensed In: California

Affiliations & Hospitals

Dr. Peter M. Rosenberg, MD is associated with these hospitals and organizations:

Unio Specialty Care

GENESIS HEALTHCARE PARTNERS PC

Ratings & Reviews

Dr. Peter M. Rosenberg, MD has an exceptional overall rating with an average of 4.92 out of 5 stars based on 159 ratings. We collect ratings and reviews of Dr. Peter M. Rosenberg, MD from all over the web to help you find the right in Pasadena, CA.

4.92

Overall Rating

(159 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Olympus Corporation of the Americas	$13,801 EndoCapsule $8,424	Computer Software Accessories $5,377
AbbVie, Inc.	$3,145 Humira $2,277	Creon $274	Mavyret $189	Lupron $119	Viekira $119	Other $166
AbbVie Inc.	$3,115 Humira $1,038	Skyrizi $1,017	Rinvoq $548	LINZESS $252	Creon $195	Other $66
Janssen Biotech, Inc.	$2,609 STELARA $1,507	SIMPONI $720	REMICADE $342	OLYSIO $40
Takeda Pharmaceuticals U.S.A., Inc.	$971 ENTYVIO $618	AMITIZA $177	MOTEGRITY $153	GATTEX $22
Other	$8,830 XIFAXAN $1,001	XELJANZ $721	STELARA $470	PENTASA $458	SUCRAID $380	Other $5,800

**Types of Payments**
Food and Beverage	$18,437
Education	$13,868
Consulting Fee	$99
Travel and Lodging	$67

Biography

Dr. Peter Rosenberg is a specialist in adult gastroenterology. Clinical interests for Dr. Rosenberg include H. pylori breath test, upper endoscopy, and ERCP (biliary and pancreatic endoscopy). He is affiliated with Unio Specialty Care. He attended medical school at Harvard Medical School. His residency was performed at Massachusetts General Hospital. Patient reviews placed him at an average of 5.0 stars (out of 5). Dr. Rosenberg has received the distinction of Southern California Super Doctors.