Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Samuel Barba Barber, MD

Psychiatry Physician in North Bethesda, MD · enumerated 2018.

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

National Provider Identifier

1043714561

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Samuel Barba Barber

Credential MD

Sex Male

Practice address 6270 Montrose Rd, North Bethesda, MD, 20852

Phone (410) 960-7272

Enumeration date Mar 20, 2018

Last updated in NPPES Sep 26, 2022

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License D89322 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Gregory Barber practice?

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

What is the NPI number for Gregory Barber?

The National Provider Identifier (NPI) for Gregory Barber is 1043714561, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-26.