NPPES file of Aug 9, 2026

Bruce Leff, M.D.

Geriatric Medicine (Internal Medicine) Physician · Baltimore, MD

Bruce Leff, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Baltimore, Maryland, and NPI 1164466157, issued on Jun 16, 2006. Check the license (Maryland D37089, as entered in NPPES) on the Maryland Board of Physicians; 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
1164466157
Name
Bruce Leff
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
D37089 MD
Self-reported in NPPES; status is on the state search
Practice location
5505 Hopkins Bayview Cir, Baltimore, MD 21224
Phone
(410) 550-0925
Enumerated
Jun 16, 2006
Record last updated
Feb 11, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
286981100 MD
Medicare enrollment
Enrolled (PECOS I20100622000287); may accept Medicare assignment
Medical or professional school
New York University School Of Medicine, 1987
Telehealth
Offers telehealth (CMS)
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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8 nearest geriatric medicine (internal medicine) physician records → All 139 in Maryland → Look up another NPI →

Also registered at 5505 Hopkins Bayview Cir

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Peter Abadir, M.D.Geriatric Medicine (Internal Medicine) Physician1871792432
  2. Jeremy Barron, M.D.Geriatric Medicine (Internal Medicine) Physician1881659076
  3. Berny Bastiampillai, M.D.Student in an Organized Health Care Education/Training Program1588048920
  4. Jazmin BlackPharmacist1366810905
  5. Ilene Browner, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1598723074
  6. John Burton, M.D.Geriatric Medicine (Internal Medicine) Physician1386602878

Verify Bruce Leff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D37089    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 Maryland license search

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81% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

809 Medicare Part D claims for 76 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Bruce Leff809
  2. Specialty average4,246

Most prescribed

  1. Amlodipine Besylate59 claims
  2. Atorvastatin Calcium56 claims
  3. Metoprolol Succinate41 claims
  4. Sertraline Hcl39 claims
  5. Lisinopril30 claims
  6. Pantoprazole Sodium29 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 one group practice

  1. Johns Hopkins UniversityBaltimore, MD

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

Bruce Leff among 139 geriatric medicine (internal medicine) physician records in Maryland

Bruce Leff, M.D. is one of 139 geriatric medicine (internal medicine) physician records with a practice address in Maryland. 69% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 38% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated1987 · median 1997 among the 66 with a school on file
  • Record last updated2013 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Maryland

There are 139 geriatric medicine (internal medicine) physician records in Maryland.

All 139 in Maryland → Every provider in Baltimore → Geriatric Medicine (Internal Medicine) Physician nationwide →

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

  1. Jeremy Barron, M.D.Baltimore, MD 212241881659076
  2. Michele Bellantoni, M.D.Baltimore, MD 212241275598427
  3. Cynthia Boyd, M.D.Baltimore, MD 212241821055310
  4. John Burton, M.D.Baltimore, MD 212241386602878
  5. Danelle Cayea, M.D.Baltimore, MD 212241487603957
  6. Colleen Christmas, M.D.Baltimore, MD 212241013968114
  7. Victor Crentsil, M.D.Baltimore, MD 212241851348726
  8. Sheila Gonzalgo, M.D.Baltimore, MD 212241730130352

Common questions

What is Bruce Leff, M.D.'s NPI number?

Bruce Leff, M.D.'s National Provider Identifier (NPI) is 1164466157, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bruce Leff, M.D. located?

The NPPES record lists a practice address at 5505 Hopkins Bayview Cir, Baltimore, MD, 21224. Phone: (410) 550-0925. Providers update this record themselves, so call before visiting.

How can I verify Bruce Leff, M.D.'s license?

NPPES lists Maryland license number D37089, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Bruce Leff, M.D. prescribe under Medicare Part D?

In 2024, Bruce Leff, M.D. had 809 Medicare Part D claims for 76 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.