Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sylvia Pineda Heiser, MSN, RN, FNP-C

Family Nurse Practitioner in El Monte, CA · enumerated 2017.

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

National Provider Identifier

1508395229

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Registry record

Entity type Individual (Type 1)

Name Sylvia Pineda Heiser

Credential MSN, RN, FNP-C

Sex Female

Practice address 3580 Santa Anita Ave Ste A, El Monte, CA, 91731

Phone (626) 444-2660

Fax (626) 448-1002

Enumeration date Jun 6, 2017

Last updated in NPPES Jun 6, 2017

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95005700 (CA) Primary

RN — Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

Is NPI 1508395229 active?

Yes — as of the latest NPPES snapshot, NPI 1508395229 is active (record last updated 2017-06-06).

How do I verify Sylvia Heiser's NPI record?

Cross-check NPI 1508395229 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-06-06.