Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heidi Elizabeth Groessl, PAC

Physician Assistant in Downey, CA · enumerated 2007.

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

National Provider Identifier

1417086026

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Registry record

Entity type Individual (Type 1)

Name Heidi Elizabeth Groessl

Credential PAC

Sex Female

Practice address 11411 Brookshire Ave, 201, Downey, CA, 90241

Phone (562) 803-6116

Fax (562) 890-4650

Enumeration date Mar 2, 2007

Last updated in NPPES Jun 21, 2010

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA16435 (CA) Primary

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.

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Frequently asked questions

What specialty is Heidi Groessl?

Heidi Groessl is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-21.