Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Geoffrey Garland Grammer, M.D.

Psychiatry Physician in Olney, MD · enumerated 2006 · practices at Lifespan Behavioral Health Services PC.

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

National Provider Identifier

1528141017

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Registry record

Entity type Individual (Type 1)

Name Dr. Geoffrey Garland Grammer

Credential M.D.

Sex Male

Practice address 3460 Olney Laytonsville Rd Ste 212, Olney, MD, 20832

Phone (301) 982-3437

Enumeration date Oct 20, 2006

Last updated in NPPES Jul 10, 2023

Taxonomy & licenses

2084B0040X Behavioral Neurology & Neuropsychiatry Physician Allopathic & Osteopathic Physicians · License D0080837 (MD) Secondary

2084P0805X Geriatric Psychiatry Physician Allopathic & Osteopathic Physicians · License 0101056625 (VA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0101056625 (VA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License D0080837 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

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.

What specialty is Geoffrey Grammer?

Geoffrey Grammer is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Lifespan Behavioral Health Services PC Mental Health Clinic/Center (Including Community Mental Health Center) · Olney, MD NPI 1114673308

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-10.