NPPES file of Aug 9, 2026

John O. Meyerhoff, M.D.

Rheumatology Physician · Baltimore, MD

John O. Meyerhoff, M.D. is a rheumatology physician with a practice address in Baltimore, Maryland, and NPI 1326081779, issued on Jun 14, 2006. Check the license (Maryland D22157, 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
1326081779
Name
John O. Meyerhoff
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
D22157 MD
Self-reported in NPPES; status is on the state search
Practice location
2411 W Belvedere Ave, Baltimore, MD 21215
Phone
(410) 601-8648
Enumerated
Jun 14, 2006
Record last updated
Apr 7, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(410) 601-4833
Medicaid ID
794371700 MD
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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Also registered at 2411 W Belvedere Ave

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

  1. Fouad AbbasObstetrics & Gynecology Physician1023087699
  2. Donald Abrams, M.D.Ophthalmology Physician1841253218
  3. Mohammed Abuzahra, MDCardiovascular Disease Physician1053366013
  4. Michael Altman, M.D.Ophthalmology Physician1174586200
  5. Karen Armour, MDPediatric Endocrinology Physician1386605004
  6. Joseph Berkow, M.D.Ophthalmology Physician1881695179

Verify John O. Meyerhoff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D22157
    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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99% fewer Medicare Part D claims than the average rheumatology physician in 2024

12 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. John Meyerhoff12
  2. Specialty average1,978

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.

John O. Meyerhoff among 214 rheumatology physician records in Maryland

John O. Meyerhoff, M.D. is one of 214 rheumatology physician records with a practice address in Maryland. 75% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 53% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2017 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Maryland

There are 214 rheumatology physician records in Maryland.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Rida Frayha, M.D.Baltimore, MD 212151750328308
  2. Gatr-Alnada Gheriani, M.D.Baltimore, MD 212181083029979
  3. Leili Parsa, MDBaltimore, MD 212181710111794
  4. Chaim Mond, MDBaltimore, MD 212091992809008
  5. Margaret Fountain, M.D.Baltimore, MD 212081487714150
  6. Robert Marcus, M.D.Baltimore, MD 212221033329586
  7. Brendan Antiochos, M.D.Baltimore, MD 212241174799092
  8. Alan Baer, MDBaltimore, MD 212241730155607

Common questions

What is John O. Meyerhoff, M.D.'s NPI number?

John O. Meyerhoff, M.D.'s National Provider Identifier (NPI) is 1326081779, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John O. Meyerhoff, M.D. located?

The NPPES record lists a practice address at 2411 W Belvedere Ave, Baltimore, MD, 21215. Phone: (410) 601-8648. Providers update this record themselves, so call before visiting.

How can I verify John O. Meyerhoff, M.D.'s license?

NPPES lists Maryland license number D22157, 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 John O. Meyerhoff, M.D. prescribe under Medicare Part D?

In 2024, John O. Meyerhoff, M.D. had 12 Medicare Part D claims; the average among rheumatology physician prescribers was 1,978. 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.