NPPES file of Aug 9, 2026

Jennifer Leigh Rosenblum, MD

Adolescent Medicine (Internal Medicine) Physician · Waltham, MA

Jennifer Leigh Rosenblum, MD is an adolescent medicine (internal medicine) physician with a practice address in Waltham, Massachusetts, and NPI 1316998107, issued on May 15, 2006. Check the license (Massachusetts 209839, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1316998107
Name
Jennifer Leigh Rosenblum
Credential
MD
Primary taxonomy
Adolescent Medicine (Internal Medicine) Physician 207RA0000X
License number
209839 MA
Self-reported in NPPES; status is on the state search
Practice location
40 2ND Ave Ste 300, Waltham, MA 02451
Phone
(617) 643-1201
Enumerated
May 15, 2006
Record last updated
Oct 30, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(617) 243-6798
Medicaid ID
0197629 MA
Medicare enrollment
Enrolled (PECOS I20041105000172); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Jennifer Leigh Rosenblum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 209839
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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99% fewer Medicare Part D claims than the average adolescent medicine (internal medicine) physician in 2024

41 Medicare Part D claims, against an average of 3,639 among the 177 providers of this specialty who prescribed in Part D.

  1. Jennifer Rosenblum41
  2. Specialty average3,639

Most prescribed

  1. Lisinopril12 claims
  2. Metformin Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. Massachusetts General Physicians Organization IncBoston, MA
  2. The General Hospital CorporationBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jennifer Leigh Rosenblum among 13 adolescent medicine (internal medicine) physician records in Massachusetts

Jennifer Leigh Rosenblum, MD is one of 13 adolescent medicine (internal medicine) physician records with a practice address in Massachusetts. 46% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 31% newer
  • In a Medicare fileYes · 46% of these records are
  • In the CMS Doctors and Clinicians fileYes · 23% of these records are
  • Record last updated2012 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adolescent Medicine (Internal Medicine) Physician providers in Massachusetts

There are 13 adolescent medicine (internal medicine) physician records in Massachusetts.

The 8 adolescent medicine (internal medicine) physician records with the nearest ZIP codes

  1. Thomas Nary, M.D.Chestnut Hill, MA 024671093840779
  2. Manni Sethi, MDNew Bedford, MA 027401700982857
  3. Mohammad Hakim, MDMedford, MA 021551760578777
  4. Barbara Opray, MDCambridge, MA 021391639142490
  5. Ashok Patel, M.D.Dorchester Center, MA 021241902825441
  6. Holly Gooding, MDBoston, MA 021151750430393
  7. Raquel SelcerBoston, MA 021151790394732
  8. Stephanie Corrado, MDBoston, MA 021141073536827

Common questions

What is Jennifer Leigh Rosenblum, MD's NPI number?

Jennifer Leigh Rosenblum, MD's National Provider Identifier (NPI) is 1316998107, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Leigh Rosenblum, MD located?

The NPPES record lists a practice address at 40 2ND Ave Ste 300, Waltham, MA, 02451. Phone: (617) 643-1201. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Leigh Rosenblum, MD's license?

NPPES lists Massachusetts license number 209839, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jennifer Leigh Rosenblum, MD prescribe under Medicare Part D?

In 2024, Jennifer Leigh Rosenblum, MD had 41 Medicare Part D claims; the average among adolescent medicine (internal medicine) physician prescribers was 3,639. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.