NPPES file of Aug 9, 2026

Mary Irene Macgregor, M.D.

Geriatric Medicine (Internal Medicine) Physician · Baltimore, MD

Mary Irene Macgregor, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Baltimore, Maryland, and NPI 1629296439, issued on Apr 24, 2007. Check the license (Maryland D0013657, 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
1629296439
Name
Mary Irene Macgregor
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
D0013657 MD
Self-reported in NPPES; status is on the state search
Practice location
700 W 40TH St, Baltimore, MD 21211
Phone
(410) 662-4390
Enumerated
Apr 24, 2007
Record last updated
Nov 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(410) 235-7425
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 700 W 40TH St

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

  1. Isaiah Bell, OTR/LOccupational Therapist1902432461
  2. Mark Oliver Borja, OTR/LOccupational Therapist1831770882
  3. Alexis BreckenridgeOccupational Therapist1073255394
  4. Marci Burt, SLPSpeech-Language Pathologist1104384080
  5. Sarah Catlett, DPTPhysical Therapist1689144701
  6. Caitlin Gardiner, OTR/LOccupational Therapist1396012738

Verify Mary Irene Macgregor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0013657    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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Mary Irene Macgregor among 139 geriatric medicine (internal medicine) physician records in Maryland

Mary Irene Macgregor, 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 2007, is newer than 62% of them.

  • NPI issued2007 · 62% of these records are older, 27% newer
  • In a Medicare fileNo · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 47% of these records are
  • Record last updated2007 · 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. Suraiya Begum, M.D.Baltimore, MD 212151952321168
  2. Robert Cooper, M.D.Baltimore, MD 212151235159898
  3. Jocelyn El-Sayed, M.D.Baltimore, MD 212151558302919
  4. Imran HasnuddinWoodlawn, MD 212071225691355
  5. Tin Sein, MDBaltimore, MD 212151952442998
  6. Thomas Edmondson, M.D.Baltimore, MD 212171659340230
  7. Kennita Carter, M.D.Baltimore, MD 212181720190085
  8. Stefan David, M.D.Baltimore, MD 212041467745067

Common questions

What is Mary Irene Macgregor, M.D.'s NPI number?

Mary Irene Macgregor, M.D.'s National Provider Identifier (NPI) is 1629296439, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary Irene Macgregor, M.D. located?

The NPPES record lists a practice address at 700 W 40TH St, Baltimore, MD, 21211. Phone: (410) 662-4390. Providers update this record themselves, so call before visiting.

How can I verify Mary Irene Macgregor, M.D.'s license?

NPPES lists Maryland license number D0013657, 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.