Dr. Peter M. Rosenberg, MD

  • Pasadena, CA
  • Gastroenterologist
NPI1104890664PAC ID7012812670
Medicare services, 2024
1,598
Medicare patients, 2024
451
Part D claims, 2024
847
Publications
7
MIPS score, 2024
100
Practice address
100 W. California Blvd, Pasadena, CA 91105
Practice phone
Call (626) 397-2618
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Huntington Hospital - Unit

Acute Care Hospital-Unit · Pasadena, California

See all 6 affiliations

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Dr. Peter M. Rosenberg is a gastroenterologist in Pasadena, California

Dr. Rosenberg practices at Huntington Hospital - Unit in Pasadena, California.

Dr. Rosenberg's NPI, 1104890664, was assigned on February 13, 2006. Dr. Rosenberg graduated from Harvard Medical School in 1993. Dr. Rosenberg holds California license G85196.

NPI and contact details
Medicare PAC ID
7012812670
NPI enumeration date
February 13, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(626) 397-2618
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
59
Medical school graduation
1993

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Peter M. Rosenberg practices at Huntington Hospital - Unit in Pasadena, California

Dr. Rosenberg's primary practice is Huntington Hospital - Unit, at 100 W. California Blvd, Pasadena, CA 91105 in Los Angeles County. The practice phone is (626) 397-2618.

  • Huntington Hospital - Unit
    100 W. California Blvd, Pasadena, CA 91105 · Los Angeles CountyPhone(626) 397-2618

Source: Dmand AI Affiliation Data

Dr. Peter M. Rosenberg is affiliated with 4 sites of care and 2 medical groups

Dr. Rosenberg's primary practice is Huntington Hospital - Unit in Pasadena, California. Dr. Rosenberg is also affiliated with Huntington Hospital. The medical group on file is Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners). Dmand AI also links Dr. Rosenberg to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Rosenberg

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Peter M. Rosenberg's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rosenberg practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Huntington Hospital - UnitAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Peter M. Rosenberg is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Rosenberg's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Rosenberg is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Rosenberg's licenses on file in 2 states: California and Massachusetts.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense G85196 · 1999 to 2026 · taxonomy 207RG0100X
  • Massachusetts license1995 to 2005

Clinical focus

Dmand AI lists acid reflux, acute gastroduodenitis, acute stomach ulcer, chronic indigestion, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, colonoscopy and gastroduodenitis among the conditions Dr. Rosenberg treats.

Gastroenterologists near Dr. Rosenberg

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Peter M. Rosenberg billed Medicare for 1,598 services in 2024

CMS data shows 1,598 Medicare services from Dr. Rosenberg across 19 procedure codes in 2024, for 451 Medicare patients. Medicare paid $104,223 for them.

Medicare services, 20241,598
Medicare patients451
Paid by Medicare$104,223
Procedure codes19

Dr. Rosenberg's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 8342024: 1,25851%
Surgery
2023: 1812024: 1753%
Other services
2023: 972024: 16570%

Where Dr. Rosenberg's Medicare services took place, 2024

  • In an office1,15272%
  • In a facility44628%

Dr. Rosenberg compared with the California median for gastroenterologists, 2024

  • Dr. Rosenberg
  • California median
Medicare services
1,598vs 5862.7 times
Medicare patients
451vs 30249% above
Part D claims
603vs 38059% above

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Rosenberg's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Rosenberg

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Peter M. Rosenberg treated 451 Medicare patients in 2024, average age 75

CMS counts 451 Medicare patients who saw Dr. Rosenberg in 2024. The largest group is 65 to 74, with 200 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.73, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Rosenberg's median patient age at 66, with 59% women.

Medicare patients, 2024451
Average age75
Average risk score1.73
Also on Medicaid17%

Dr. Rosenberg's Medicare patients by age, 2024

Dr. Rosenberg's Medicare patients by sex, 2024

  • Women27862%
  • Men17338%

Chronic conditions among Dr. Rosenberg's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis57%
  4. Diabetes35%
  5. Ischemic heart disease33%
  6. Chronic kidney disease29%
  7. Mood disorders24%
  8. Anxiety23%

Share of Medicare patients with each condition. A patient can have several.

Dr. Rosenberg's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women59%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Peter M. Rosenberg wrote 847 Medicare Part D claims in 2024

In 2024, Dr. Rosenberg wrote 847 Medicare Part D claims for 189 patients. 81% of them were for generic drugs. CMS names the drug for 603 of them, across 18 drugs with 11 or more claims each, at $411,815 in total drug cost. In 2023, CMS named 534 claims across 13 drugs.

Part D claims, 2024847
Drugs named by CMS18
Total drug cost$411,815
Part D patients189

Dr. Rosenberg's Part D claims by kind of drug, 2024

  • Generic685 claims81%
  • Brand-name162 claims19%

Dr. Rosenberg's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Rosenberg's Part D claims, 2024

  • Antibiotics7%62 of 847 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 5342024: 60313%

Drugs named by CMS: 18 in 2024, 13 in 2023.

See all prescribing by Dr. Rosenberg

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Peter M. Rosenberg scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Rosenberg for performance year 2024, reported as part of a group. Dr. Rosenberg accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rosenberg as offering telehealth. CMS counts 107 procedures of colonoscopy by Dr. Rosenberg, more than 81% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Rosenberg's MIPS scores, performance year 2024

  • 100of 100Final score
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Rosenberg ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
78th percentile110 procedures
Colonoscopy
81st percentile107 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Peter M. Rosenberg has 7 publications on record

Dmand AI links 7 papers to Dr. Rosenberg, published from 2007 to 2011. 2011 was the busiest year, with 2. The most frequent topics are Liver, Liver Cirrhosis and Methotrexate. Dr. Rosenberg's most frequent co-author is Raymond T. Chung, MD.

Papers7
Years published2007 to 2011

Topics Dr. Rosenberg writes about most

  • Liver
  • Liver Cirrhosis
  • Methotrexate
  • Psoriasis

Dr. Rosenberg's most frequent co-authors

Recent publications by Dr. Rosenberg

See all 7 publications and co-authors

See who Dr. Rosenberg researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rosenberg works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Peter M. Rosenberg received $31,580 in industry payments from 2016 to 2025

CMS Open Payments shows 887 general payments to Dr. Rosenberg from 49 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 56% of the total. Olympus Corporation of the Americas paid the most, $13,801.

General payments to Dr. Rosenberg by program year, 2016 to 2025

General payments to Dr. Rosenberg by kind, 2016 to 2025

$31.6Kin total
  • Food and beverage$17,63756%
  • Education$13,87544%
  • Travel and lodging$670%

Companies that paid Dr. Rosenberg the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Rosenberg

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Peter M. Rosenberg has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Rosenberg, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Rosenberg

  1. 2013
    • CMS Stage 1 EHR
  2. Undated
    • Checkbook Top Doc

Source: Dmand AI Professional Profile Data

Dr. Peter M. Rosenberg graduated from Harvard Medical School

Dr. Rosenberg graduated from Harvard Medical School in 1993. Dr. Rosenberg is a member of ACP.

  1. Medical schoolHarvard Medical School
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Peter M. Rosenberg accepts plans from 15 insurance carriers

Dr. Rosenberg is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Molina
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Rosenberg accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO7
  4. EPO5
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Peter M. Rosenberg's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Peter M. Rosenberg

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Peter M. Rosenberg's NPI number?

Dr. Peter M. Rosenberg's NPI number is 1104890664. It was assigned on February 13, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Peter M. Rosenberg?

Dr. Peter M. Rosenberg is a gastroenterologist in Pasadena, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Peter M. Rosenberg practice?

Dr. Rosenberg practices at 100 W. California Blvd, Pasadena, CA 91105. Dr. Rosenberg's primary practice is Huntington Hospital - Unit in Pasadena, California. Dmand AI also links Dr. Rosenberg to 2 group practices and clinics and 1 medical group.

What is Dr. Peter M. Rosenberg's office phone number?

The practice phone on file for Dr. Rosenberg is (626) 397-2618.

What is Dr. Peter M. Rosenberg's medical license number?

Dr. Rosenberg holds California license G85196, one of the licenses on file in 2 states.

Which states has Dr. Peter M. Rosenberg been licensed in?

Dmand AI has state licenses on file for Dr. Rosenberg in California (1999 to 2026) and Massachusetts (1995 to 2005).

Which hospitals is Dr. Peter M. Rosenberg affiliated with?

Dr. Rosenberg is affiliated with Huntington Hospital. Dmand AI links Dr. Rosenberg to 1 more hospital.

What medical group is Dr. Peter M. Rosenberg part of?

Dr. Rosenberg is linked to Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners). Dmand AI links Dr. Rosenberg to 1 more medical group.

Does Dr. Peter M. Rosenberg accept Medicare?

Yes. CMS data shows Dr. Rosenberg billed Medicare for 1,598 services in 2024, and Dr. Rosenberg accepts Medicare assignment.

Does Dr. Peter M. Rosenberg offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Rosenberg as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Peter M. Rosenberg's MIPS score?

Dr. Rosenberg's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.

How many Medicare patients does Dr. Peter M. Rosenberg see?

CMS counts 451 Medicare patients who saw Dr. Rosenberg in 2024, with an average age of 75.

Is Dr. Peter M. Rosenberg board certified?

Yes. Dr. Rosenberg is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Peter M. Rosenberg bill to Medicare?

In 2024, Dr. Rosenberg's most billed Medicare services were care management and other visits (99439), office visit, established patient (99213) and care management and other visits (99490).

Where did Dr. Peter M. Rosenberg go to medical school?

Dr. Rosenberg graduated from Harvard Medical School in 1993.

What drugs does Dr. Peter M. Rosenberg prescribe most?

In 2024 Medicare Part D data, Dr. Rosenberg's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Famotidine.

Has Dr. Peter M. Rosenberg received payments from drug or device companies?

CMS Open Payments shows $31,580 in general payments to Dr. Rosenberg from 49 companies from 2016 to 2025. The largest total came from Olympus Corporation of the Americas.

How long has Dr. Peter M. Rosenberg been practicing?

Dr. Rosenberg graduated from medical school in 1993, 33 years ago.

Does Dr. Peter M. Rosenberg do research?

Dmand AI links 7 publications to Dr. Rosenberg, published from 2007 to 2011.

Who does Dr. Peter M. Rosenberg publish with?

Dr. Rosenberg's most frequent co-authors are Raymond T. Chung, MD (1 shared paper).

What insurance does Dr. Peter M. Rosenberg accept?

Dr. Rosenberg is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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