Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen Chan, FNP

Family Nurse Practitioner in Eastchester, NY · enumerated 2018.

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

National Provider Identifier

1538645957

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Registry record

Entity type Individual (Type 1)

Name Gretchen Chan

Credential FNP

Sex Female

Practice address 375 White Plains Rd, Eastchester, NY, 10709

Phone (512) 324-4780

Enumeration date Jul 18, 2018

Last updated in NPPES Jun 12, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License NP200006280 (DC) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 857507 (NV) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 113869 (NE) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP137862 (TX) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 278738 (AZ) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License AP61350350 (WA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License C-APN-0002065-C-NP (CO) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 53-80701-061 (KS) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 354799 (NY) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License SP032176 (PA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 95024282 (CA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 10824 (CT) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License GAA-NP005228 (GA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 26NJ01310400 (NJ) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 5022731 (NC) Secondary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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 Gretchen Chan practice?

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

What is the NPI number for Gretchen Chan?

The National Provider Identifier (NPI) for Gretchen Chan is 1538645957, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-12.