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NPISignal

Individual Healthcare Provider

Geoffrey Garland Grammer, M.D.

NPI Record: ActivePsychiatry & Neurology — Psychiatry
NPI1528141017
Olney, Maryland

Provider's NPPES record last updated: July 10, 2023

Overview

Entity Type
Individual Healthcare Provider
NPI
1528141017
Primary Specialty
Psychiatry & Neurology — Psychiatry
Practice Location
Olney, Maryland
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 20, 2026, 4:42 AM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Psychiatry & Neurology

    Psychiatry

    Allopathic & Osteopathic Physicians

    Primary

    A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

    Taxonomy code 2084P0800X
  • Psychiatry & Neurology

    Behavioral Neurology & Neuropsychiatry

    Allopathic & Osteopathic Physicians

    Behavioral Neurology & Neuropsychiatry is a medical subspecialty involving the diagnosis and treatment of neurologically based behavioral issues.

    Taxonomy code 2084B0040X
  • Psychiatry & Neurology

    Geriatric Psychiatry

    Allopathic & Osteopathic Physicians

    Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

    Taxonomy code 2084P0805X
  • Internal Medicine

    Allopathic & Osteopathic Physicians

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Taxonomy code 207R00000X

Provider-Reported License Information

Psychiatry & Neurology (Maryland)
D0080837
Psychiatry & Neurology (Maryland)
D0080837
Psychiatry & Neurology (Virginia)
0101056625
Internal Medicine (Virginia)
0101056625
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

3460 Olney Laytonsville Rd Ste 212

Olney, Maryland 20832-3701

Phone: (301) 982-3437

Additional Practice Location

15005 Shady Grove Rd Ste 400

Rockville, Maryland 20850-6321

Phone: (855) 940-4867

Additional Practice Location

1003 W 7th St # 200

Frederick, Maryland 21701-4106

Phone: (301) 245-6300

Additional Practice Location

7474 Greenway Center Dr Ste 700a

Greenbelt, Maryland 20770-3523

Phone: (301) 982-3437

Additional Practice Location

3416 Olandwood Ct

Olney, Maryland 20832-1372

Phone: (301) 969-4060

Record Information

Enumeration Date
October 20, 2006
Provider's NPPES Record Last Updated
July 10, 2023
Certification Date
July 10, 2023
NPISignal NPPES Dataset
August 2026

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