Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather Mambretti, PA-C

Physician Assistant in League City, TX · enumerated 2011 · practices at Harbor Emergency Physicians PA.

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

National Provider Identifier

1417243726

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Registry record

Entity type Individual (Type 1)

Name Heather Mambretti

Credential PA-C

Sex Female

Practice address 3725 E League City Pkwy, League City, TX, 77573

Phone (281) 957-9127

Fax (281) 957-9157

Enumeration date Jun 24, 2011

Last updated in NPPES Jul 19, 2022

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA07324 (TX) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Heather Mambretti?

The National Provider Identifier (NPI) for Heather Mambretti is 1417243726, a Type 1 (individual) record in the CMS NPPES registry.

Where does Heather Mambretti practice?

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

Other providers at this practice address

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Harbor Emergency Physicians PA Emergency Medicine Physician · League City, TX NPI 1801390380

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-19.