Dr. Gregory Thomas Brown II, MD, PHD
Dr. Gregory Thomas Brown II is a Anatomic Pathology Physician provider (Pathology) practicing in Bethesda, MD, registered in the NPPES registry with NPI 1861826521 since 2013. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1861826521 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Gregory Thomas Brown II |
| Credential | MD, PHD |
| Sex | Male |
| Practice address | 41 CENTER DR RM A101H, Bethesda, MD, 20892 |
| Phone | 2408587227 |
| Enumeration date | 2013-08-29 |
| Last updated in NPPES | 2026-01-23 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207ZP0101X | Anatomic Pathology Physician | Primary | 105483 | GA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Gregory Brown, MD, PHD NPI: 1861826521 Taxonomy: 207ZP0101X (Anatomic Pathology Physician) Address: 41 CENTER DR RM A101H, Bethesda, MD, 20892
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Cross-check NPI 1861826521 against the authoritative CMS record: view Dr. Gregory Thomas Brown II on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-01-23.