Matthew John Grant, M.D.
Pediatrics Physician · Baltimore, MD
Matthew John Grant, M.D. is a pediatrics physician with a practice address in Baltimore, Maryland, and NPI 1437544277, issued on Mar 30, 2015. Check the license (Maryland D84875, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Matthew John Grant
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- D84875 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St, Baltimore, MD 21201
- Phone
- (410) 328-6749
- Enumerated
- Mar 30, 2015
- Record last updated
- May 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (410) 328-7305
- Medicare enrollment
- Enrolled (PECOS I20180618001607); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,842 in Maryland → Look up another NPI →
Also registered at 22 S Greene St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew John Grant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D84875Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average pediatrics physician in 2024
11 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
- Biktarvy11 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
- University OF Maryland Pediatric Associates, PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew John Grant among 1,842 pediatrics physician records in Maryland
Matthew John Grant, M.D. is one of 1,842 pediatrics physician records with a practice address in Maryland. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.
- NPI issued2015 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 35% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated2015 · median 2008 among the 162 with a school on file
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
522 pediatrics physician records list a practice address in Baltimore
They are 522 of the 35,183 NPPES records with a practice address in Baltimore, and 1,842 pediatrics physician records in Maryland.
All 1,842 in Maryland → Every provider in Baltimore → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Carol Carraccio, MDBaltimore, MD 212011750324620
- Ginny Cummings, NPBaltimore, MD 212011477566339
- Ajit Das, MDBaltimore, MD 212011669411476
- Howard Dubowitz, M.D.Baltimore, MD 212011639282825
- Samer El-Kamary, MDBaltimore, MD 212011548200058
- Susan Feigelman, MDBaltimore, MD 212011417991217
- Laura Finkelstein, MDBaltimore, MD 212011871537282
- Mario GonzalezBaltimore, MD 212011629163704
Common questions
What is Matthew John Grant, M.D.'s NPI number?
Matthew John Grant, M.D.'s National Provider Identifier (NPI) is 1437544277, issued on Mar 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Matthew John Grant, M.D. located?
The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (410) 328-6749. Providers update this record themselves, so call before visiting.
How can I verify Matthew John Grant, M.D.'s license?
NPPES lists Maryland license number D84875, 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 Matthew John Grant, M.D. prescribe under Medicare Part D?
In 2024, Matthew John Grant, M.D. had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.