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

Gabrielle Mayer, MD

Student in an Organized Health Care Education/Training Program in New York, NY · enumerated 2020.

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

National Provider Identifier

1942839055

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Registry record

Entity type Individual (Type 1)

Name Gabrielle Mayer

Credential MD

Sex Female

Practice address New York, NY, 10016

Phone (212) 263-5506

Enumeration date Apr 2, 2020

Last updated in NPPES Jul 7, 2023

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 323961 (NY) Secondary

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

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

Other identifiers

Identifier	Type	State	Issuer
13-3971298	Medicaid	NY	-

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

Is NPI 1942839055 active?

Yes, as of the latest NPPES snapshot, NPI 1942839055 is active (record last updated 2023-07-07).

How do I verify Gabrielle Mayer's NPI record?

Cross-check NPI 1942839055 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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