NPPES file of Aug 9, 2026

Mark David Heuser, M.D.

Geriatric Medicine (Internal Medicine) Physician · Baltimore, MD

Mark David Heuser, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Baltimore, Maryland, and NPI 1134375637, issued on Aug 15, 2008. Check the license (Maryland D48215, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1134375637
Name
Mark David Heuser
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
D48215 MD
32512 NC
Self-reported in NPPES; status is on the state search
Practice location
10 N Greene St, Baltimore, MD 21201
Phone
(410) 642-2411
Enumerated
Aug 15, 2008
Record last updated
Aug 15, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). 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 10 N Greene St

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

  1. Wegene Abraha, RRTRegistered Respiratory Therapist1780933689
  2. Alexander AccinelliAmbulatory Care Pharmacist1851878557
  3. Deborah Adams, R.D., L.D.Registered Dietitian1013003821
  4. Rickey Adams, DPMFoot & Ankle Surgery Podiatrist1780796136
  5. Hanieh Afkhami, PHARM.DPharmacist1114052974
  6. Minu Aghevli, PH.D.Clinical Psychologist1831295393

Verify Mark David Heuser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D48215    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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Mark David Heuser among 139 geriatric medicine (internal medicine) physician records in Maryland

Mark David Heuser, 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 not. Its NPI, issued in 2008, is newer than 73% of them.

  • NPI issued2008 · 73% of these records are older, 24% newer
  • In a Medicare fileNo · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 47% of these records are
  • Record last updated2008 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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. Barbara Akin, MDBaltimore, MD 212011063474815
  2. Brock Beamer, M.D.Baltimore, MD 212011710942693
  3. Jacob Blumenthal, M.D.Baltimore, MD 212011497715049
  4. Perry Colvin, M.D.Baltimore, MD 212011649376906
  5. Steven Gambert, M.D.Baltimore, MD 212011518917095
  6. Dima Hnoosh, M.D.Baltimore, MD 212011215390661
  7. Leslie Katzel, M.D.Baltimore, MD 212011730143314
  8. Cathy Larrain, M.D.Baltimore, MD 212011790074896

Common questions

What is Mark David Heuser, M.D.'s NPI number?

Mark David Heuser, M.D.'s National Provider Identifier (NPI) is 1134375637, issued on Aug 15, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mark David Heuser, M.D. located?

The NPPES record lists a practice address at 10 N Greene St, Baltimore, MD, 21201. Phone: (410) 642-2411. Providers update this record themselves, so call before visiting.

How can I verify Mark David Heuser, M.D.'s license?

NPPES lists Maryland license number D48215, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.