Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Henry Hilliard Holcomb, M.D.

Psychiatry Physician in Kensington, MD · enumerated 2006.

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

National Provider Identifier

1225110075

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Registry record

Entity type Individual (Type 1)

Name Dr. Henry Hilliard Holcomb

Credential M.D.

Sex Male

Practice address Kensington, MD, 20895

Phone (301) 785-4799

Fax (240) 559-0992

Enumeration date Oct 20, 2006

Last updated in NPPES Feb 24, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License D0027903 (MD) Primary

2084D0003X Diagnostic Neuroimaging (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License D0027903 (MD) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Henry Holcomb practice?

The practice location on file with NPPES is in Kensington, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Henry Holcomb?

The National Provider Identifier (NPI) for Henry Holcomb is 1225110075, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-24.