Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Rachel Workman, NP

Family Nurse Practitioner in Austin, TX · enumerated 2021.

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

National Provider Identifier

1821754581

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Rachel Workman

Credential NP

Sex Female

Practice address 911 W 38th St Ste 201, Austin, TX, 78705

Phone (512) 459-1131

Enumeration date Nov 16, 2021

Last updated in NPPES Nov 16, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2021097597 (TX) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

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.

What specialty is Mary Workman?

Mary Workman is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-16.