Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erin Mamuyac Lopez, MD

Otolaryngology Physician in San Antonio, TX · enumerated 2017.

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

National Provider Identifier

1538693106

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Registry record

Entity type Individual (Type 1)

Name Erin Mamuyac Lopez

Credential MD

Sex Female

Practice address 8300 Floyd Curl Dr Fl 6, San Antonio, TX, 78229

Phone (210) 450-9950

Fax (210) 450-6033

Enumeration date Apr 20, 2017

Last updated in NPPES Jun 28, 2024

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License U3926 (TX) Primary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 2022-01636 (NC) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

How do I verify Erin Lopez's NPI record?

Cross-check NPI 1538693106 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538693106 active?

Yes, as of the latest NPPES snapshot, NPI 1538693106 is active (record last updated 2024-06-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-28.