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Dr. Aric Christopher Gillen, M.D.

Obstetrics & Gynecology Physician in Round Rock, TX · enumerated 2007.

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

National Provider Identifier

1720285158

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Registry record

Entity type Individual (Type 1)
Name Dr. Aric Christopher Gillen
Credential M.D.
Sex Male
Practice address 3950 N A W Grimes Blvd Ste N103, Round Rock, TX, 78665
Phone (877) 800-5722
Fax (512) 218-1249
Enumeration date Jun 29, 2007
Last updated in NPPES Jan 9, 2018

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License P0827 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
339843003 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

What specialty is Aric Gillen?
Aric Gillen is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-09.