Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret A Clarke, APRN

Emergency Clinical Nurse Specialist in San Antonio, TX · enumerated 2006.

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

National Provider Identifier

1336103373

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Registry record

Entity type Individual (Type 1)

Name Margaret A Clarke

Credential APRN

Sex Female

Practice address 8811 Village Dr, Attn: Fast Track, San Antonio, TX, 78217

Phone (210) 614-0180

Fax (210) 615-7170

Enumeration date Apr 14, 2006

Last updated in NPPES May 19, 2009

Taxonomy & licenses

364SE0003X Emergency Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 506310 (TX) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
8Y8930	Other	TX	BCBSTX
166178705	Medicaid	TX	-

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 1336103373 active?

Yes, as of the latest NPPES snapshot, NPI 1336103373 is active (record last updated 2009-05-19).

How do I verify Margaret Clarke's NPI record?

Cross-check NPI 1336103373 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-19.