Reuben S. Mezrich, MD
Diagnostic Radiology Physician · Baltimore, MD
Reuben S. Mezrich, MD is a diagnostic radiology physician with a practice address in Baltimore, Maryland, and NPI 1306832480, issued on Sep 23, 2005. Check the license (Maryland D0059309, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Reuben S. Mezrich
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- D0059309 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St, Baltimore, MD 21201
- Phone
- (410) 328-3477
- Enumerated
- Sep 23, 2005
- Record last updated
- Oct 9, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (410) 328-5656
- Medicaid ID
- 110800000 376500800 MD
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 877 in Maryland → Look up another NPI →
Also registered at 22 S Greene St
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Verify Reuben S. Mezrich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0059309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024
37 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D.
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.
Reuben S. Mezrich among 877 diagnostic radiology physician records in Maryland
Reuben S. Mezrich, MD is one of 877 diagnostic radiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2013 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
493 diagnostic radiology physician records list a practice address in Baltimore
They are 493 of the 35,183 NPPES records with a practice address in Baltimore, and 877 diagnostic radiology physician records in Maryland.
All 877 in Maryland → Every provider in Baltimore → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Benita Banks, MDBaltimore, MD 212011801867593
- William Carter, M.D.Baltimore, MD 212011912905563
- Barry Daly, MDBaltimore, MD 212011932195989
- George Gross, MDBaltimore, MD 212011649266610
- Jeffrey Hirsch, M.D.Baltimore, MD 212011023097060
- Marcia McAvoy, M.D.Baltimore, MD 212011942296124
- Michael Mulligan, MDBaltimore, MD 212011972599553
- John Rees, M.D.Baltimore, MD 212011033199344
Common questions
What is Reuben S. Mezrich, MD's NPI number?
Reuben S. Mezrich, MD's National Provider Identifier (NPI) is 1306832480, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Reuben S. Mezrich, MD located?
The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (410) 328-3477. Providers update this record themselves, so call before visiting.
How can I verify Reuben S. Mezrich, MD's license?
NPPES lists Maryland license number D0059309, 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 Reuben S. Mezrich, MD prescribe under Medicare Part D?
In 2024, Reuben S. Mezrich, MD had 37 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.