Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Caitlin Patricia Marsh, D.O.

Surgery Physician in Round Rock, TX · enumerated 2018.

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

National Provider Identifier

1851871842

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Registry record

Entity type Individual (Type 1)

Name Caitlin Patricia Marsh

Credential D.O.

Sex Female

Practice address 300 University Blvd, Round Rock, TX, 78665

Phone (512) 509-0100

Enumeration date Aug 18, 2018

Last updated in NPPES Dec 4, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License W0659 (TX) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

What specialty is Caitlin Marsh?

Caitlin Marsh is registered in NPPES with the primary taxonomy of Surgery 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 2025-12-04.