Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Eileen C Grass, FNP

Q: What is the NPI number for Eileen Grass?

The National Provider Identifier (NPI) for Eileen Grass is 1124090873, a Type 1 (individual) record in the CMS NPPES registry.

Family Nurse Practitioner in Vista, CA · enumerated 2006.

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

National Provider Identifier

1124090873

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Registry record

Entity type Individual (Type 1)

Name Ms. Eileen C Grass

Credential FNP

Sex Female

Practice address 1000 Vale Terrace Dr, Vista, CA, 92084

Phone (760) 631-5000

Fax (760) 414-3892

Enumeration date Feb 6, 2006

Last updated in NPPES Mar 10, 2016

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 646111 (CA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 15370 (CA) Primary

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 Eileen Grass practice?

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

What is the NPI number for Eileen Grass?

The National Provider Identifier (NPI) for Eileen Grass is 1124090873, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Hillel Janai Pediatrics Physician · Vista, CA NPI 1285638619 Debra Edson Dentist · Vista, CA NPI 1770575888 Christopher Pudol Family Medicine Physician · Vista, CA NPI 1851386080 Deborah Tanus General Practice Physician · Vista, CA NPI 1386630945 Ryan Hikes Family Medicine Physician · Vista, CA NPI 1609862358 Victor Souza Internal Medicine Physician · Vista, CA NPI 1457340200 Melanie Logue Family Nurse Practitioner · Vista, CA NPI 1336121094 William Searcy Pediatrics Physician · Vista, CA NPI 1356329270

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-10.