Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Nancy Edith Martinez, RN,CNOR,CST,SA-C

Registered Nurse First Assistant in San Antonio, TX · enumerated 2009 · practices at Outfox Surgical Assisting, P.C..

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

National Provider Identifier

1831428952

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Registry record

Entity type Individual (Type 1)

Name Mrs. Nancy Edith Martinez

Credential RN,CNOR,CST,SA-C

Sex Female

Practice address 6110 Flower Mdw, San Antonio, TX, 78222

Phone (210) 867-3770

Fax (210) 368-9370

Enumeration date Dec 19, 2009

Last updated in NPPES Dec 19, 2009

Taxonomy & licenses

163WR0006X Registered Nurse First Assistant Nursing Service Providers · License 737952 (TX) 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

How do I verify Nancy Martinez's NPI record?

Cross-check NPI 1831428952 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831428952 active?

Yes, as of the latest NPPES snapshot, NPI 1831428952 is active (record last updated 2009-12-19).

Other providers at this practice address

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Outfox Surgical Assisting, P.C. General Acute Care Hospital · San Antonio, TX NPI 1427293265

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-19.