John Brown, M.D.
Sleep Medicine (Internal Medicine) Physician · Baltimore, MD
John Brown, M.D. is a sleep medicine (internal medicine) physician with a practice address in Baltimore, Maryland, and NPI 1215968516, issued on Jul 5, 2006. Check the license (Maryland D42718, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Brown
- Credential
- M.D.
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- D42718 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St, Baltimore, MD 21201
- Phone
- (410) 705-5762
- Enumerated
- Jul 5, 2006
- Entity
- Type 1 · individual
Also registered at 22 S Greene St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bizhan Aarabi, MDNeurological Surgery Physician1174578876
- Elsadig Abdalla, MDStudent in an Organized Health Care Education/Training Program1073364477
- Ehssan AbdolalizadehStudent in an Organized Health Care Education/Training Program1093653271
- Mohammad Abdulelah, MDStudent in an Organized Health Care Education/Training Program1114650108
- Leenah AbdulgaderStudent in an Organized Health Care Education/Training Program1386323301
- Ifedayo Abiola-Matthew, CRNPAcute Care Nurse Practitioner1033781117
Verify John Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D42718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Sleep Medicine (Internal Medicine) Physician providers in Maryland
There are 26 sleep medicine (internal medicine) physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other sleep medicine (internal medicine) physician records in Maryland
- Khaleel Ahmed, M.DBaltimore, MD1588783286
- Amandeep BawaBaltimore, MD1720059645
- Thomas Burke, M.D.Fallston, MD1770687493
- Michael Coppola, M.D.Glen Burnie, MD1790724052
- Jennifer Creamer, M.D.Bethesda, MD1629207857
- Riad Dakheel, M.D.Bowie, MD1528067345
- Ayan DeParkville, MD1881139517
- Sirisha Devabhaktuni, MDBethesda, MD1679922421
- Montserrat Diaz-Abad, M.D.Baltimore, MD1326246265
- Danielle Glick, MDBaltimore, MD1063830685
Common questions
What is John Brown, M.D.'s NPI number?
John Brown, M.D.'s National Provider Identifier (NPI) is 1215968516, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Brown, M.D. located?
The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (410) 705-5762. Providers update this record themselves, so call before visiting.
How can I verify John Brown, M.D.'s license?
NPPES lists Maryland license number D42718, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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) 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 27, 2026.