Dr. Jacob Rosenberg, MD, PhD
- Medicare services, 2024
- 123
- Medicare patients, 2024
- 56
- Part D claims, 2022
- 51
- Hospital affiliations
- 1
- Industry payments
- $530
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Rosenberg's professional email, personal email and mobile number
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Dr. Jacob Rosenberg is an internist in Boston, Massachusetts
Dr. Rosenberg practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Rosenberg's NPI, 1275989170, was assigned on May 10, 2016. Dr. Rosenberg graduated from Stanford University School of Medicine in 2016. Dr. Rosenberg holds Massachusetts license 267648.
- NPI
- 1275989170NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092001594
- NPI enumeration date
- May 10, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jacob Rosenberg practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Rosenberg's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Jacob Rosenberg is affiliated with 5 sites of care and 4 medical groups
Dr. Rosenberg's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Rosenberg to 3 more group practices and clinics, 3 medical groups and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jacob Rosenberg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rosenberg practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jacob Rosenberg is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Rosenberg's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Rosenberg is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Rosenberg
Counts of internists 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. Jacob Rosenberg billed Medicare for 123 services in 2024
CMS data shows 123 Medicare services from Dr. Rosenberg across 3 procedure codes in 2024, for 56 Medicare patients. Medicare paid $9,975 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Rosenberg's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1022024: 12321%
Dr. Rosenberg compared with the Massachusetts median for internists, 2024
- Dr. Rosenberg
- Massachusetts median
- Medicare services
- 123vs 43171% below
- Medicare patients
- 56vs 19471% below
- Part D claims
- 51vs 40287% below
Medians across 5,369 internists in Massachusetts 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rosenberg and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jacob Rosenberg treated 56 Medicare patients in 2024, average age 71
CMS counts 56 Medicare patients who saw Dr. Rosenberg in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 4.12, 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 76, with 33% women.
Dr. Rosenberg's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Rosenberg's Medicare patients by sex, 2024
- Women2443%
- Men3257%
Chronic conditions among Dr. Rosenberg's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease66%
- Heart failure50%
- Ischemic heart disease50%
- Anxiety48%
- Mood disorders48%
- Arthritis46%
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 76
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jacob Rosenberg wrote 51 Medicare Part D claims in 2022
In 2022, Dr. Rosenberg wrote 51 Medicare Part D claims. They cover 3 drugs, with $126,066 in total drug cost. In 2021, CMS named 249 claims across 10 drugs.
Dr. Rosenberg's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2492022: 5180%
Drugs named by CMS: 3 in 2022, 10 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Jacob Rosenberg takes part in Medicare
Dr. Rosenberg accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jacob Rosenberg received $530 in industry payments in 2025
CMS Open Payments shows 4 general payments to Dr. Rosenberg from 1 drug or device company in 2025. Travel and lodging make up the largest share, 96% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $530.
General payments to Dr. Rosenberg by kind, 2025 to 2025
- Travel and lodging$50896%
- Food and beverage$234%
Companies that paid Dr. Rosenberg the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jacob Rosenberg graduated from Stanford University School of Medicine
Dr. Rosenberg graduated from Stanford University School of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jacob Rosenberg's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jacob 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. Jacob Rosenberg's NPI number?
Dr. Jacob Rosenberg's NPI number is 1275989170. It was assigned on May 10, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Jacob Rosenberg?
Dr. Jacob Rosenberg is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jacob Rosenberg practice?
Dr. Rosenberg practices at 55 Fruit Street, Boston, MA 02114. Dr. Rosenberg's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Rosenberg to 3 group practices and clinics, 3 medical groups and 1 community health center.
What is Dr. Jacob Rosenberg's office phone number?
The practice phone on file for Dr. Rosenberg is (617) 726-2000.
What is Dr. Jacob Rosenberg's medical license number?
Dr. Rosenberg holds Massachusetts license 267648.
Which hospitals is Dr. Jacob Rosenberg affiliated with?
Dr. Rosenberg practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Jacob Rosenberg part of?
Dr. Rosenberg is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Rosenberg to 3 more medical groups.
Does Dr. Jacob Rosenberg accept Medicare?
Yes. CMS data shows Dr. Rosenberg billed Medicare for 123 services in 2024, and Dr. Rosenberg accepts Medicare assignment.
How many Medicare patients does Dr. Jacob Rosenberg see?
CMS counts 56 Medicare patients who saw Dr. Rosenberg in 2024, with an average age of 71.
What services does Dr. Jacob Rosenberg bill to Medicare?
In 2024, Dr. Rosenberg's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
Show 4 more questionsShow fewer questions
Where did Dr. Jacob Rosenberg go to medical school?
Dr. Rosenberg graduated from Stanford University School of Medicine in 2016.
What drugs does Dr. Jacob Rosenberg prescribe most?
In 2022 Medicare Part D data, Dr. Rosenberg's most prescribed drugs by claims were Descovy, Tivicay and Juluca.
Has Dr. Jacob Rosenberg received payments from drug or device companies?
CMS Open Payments shows $530 in general payments to Dr. Rosenberg from 1 company from 2025 to 2025. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Dr. Jacob Rosenberg been practicing?
Dr. Rosenberg graduated from medical school in 2016, 10 years ago.
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