Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tammie Mae Blair, NP

Obstetrics & Gynecology Nurse Practitioner in Columbia, MD · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902849938

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Registry record

Entity type Individual (Type 1)

Name Tammie Mae Blair

Credential NP

Sex Female

Practice address 10440 Little Patuxent Pkwy Ste 300, Columbia, MD, 21044

Phone (703) 618-0111

Enumeration date Jun 14, 2006

Last updated in NPPES May 5, 2026

Taxonomy & licenses

363LX0001X Obstetrics & Gynecology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN1024450 (DC) Primary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License R248550 (MD) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 752978 (CA) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 117969 (WV) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 0024168949 (VA) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 214952 (CT) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License APRN03987 (RI) Secondary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
RN1024450	Other	DC	STATE LICENSE
117969	Other	WV	WEST VIRGINIA BOARD OF NURSING
0024168949	Other	VA	VIRGINIA BOARD OF NURSING
APRN03987	Other	RI	RHODE ISLAND BOARD OF NURSING
R248550	Other	MD	MARYLAND BOARD OF NURSING
214952	Other	CT	CONNECTICUT BOARD OF NURSING
752978	Other	CA	CALIFORNIA BOARD OF NURSING

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 → Validate an NPI →

Frequently asked questions

What specialty is Tammie Blair?

Tammie Blair is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-05.