Jason Alan Gregory, M.D.
Neuropathology Physician · Bethesda, MD
Jason Alan Gregory, M.D. is a neuropathology physician with a practice address in Bethesda, Maryland, and NPI 1114365533, issued on Jun 7, 2013. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Jason Alan Gregory
- Credential
- M.D.
- Primary taxonomy
- Neuropathology Physician 207ZN0500X
- License number
- 28398 NE
Self-reported in NPPES; status is on the state search - Practice location
- 8901 Rockville Pike, Bethesda, MD 20889
- Phone
- (301) 295-4000
- Enumerated
- Jun 7, 2013
- Record last updated
- Jan 21, 2025
- Medicare enrollment
- Enrolled (PECOS I20250715003643); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2013
- Entity
- Type 1 · individual
2 nearest neuropathology physician records → All 3 in Maryland → Look up another NPI →
Also registered at 8901 Rockville Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jason Alan Gregory in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Ruffolo Hooper And Associates MD PADade City, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neuropathology Physician providers in Maryland
There are 3 neuropathology physician records in Maryland.
All 3 in Maryland → Every provider in Bethesda → Neuropathology Physician nationwide →
The 2 neuropathology physician records with the nearest ZIP codes
- David Nauen, MDBaltimore, MD 212051700104973
- Cheng-Ying Ho, M.D., PH.D.Baltimore, MD 212871053554055
Common questions
What is Jason Alan Gregory, M.D.'s NPI number?
Jason Alan Gregory, M.D.'s National Provider Identifier (NPI) is 1114365533, issued on Jun 7, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Jason Alan Gregory, M.D. located?
The NPPES record lists a practice address at 8901 Rockville Pike, Bethesda, MD, 20889. Phone: (301) 295-4000. Providers update this record themselves, so call before visiting.
How can I verify Jason Alan Gregory, M.D.'s license?
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. 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.