Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Thomas, MD

Orthopaedic Surgery Physician in Castle Rock, CO · enumerated 2006.

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

National Provider Identifier

1083624944

Verified

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Registry record

Entity type Individual (Type 1)

Name Robert Thomas

Credential MD

Sex Male

Practice address 6833 Northstar Cir, Castle Rock, CO, 80108

Phone (719) 248-3889

Enumeration date Aug 9, 2006

Last updated in NPPES Mar 17, 2022

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 4301071199 (MI) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 61248697 (WA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 12645018-1205 (UT) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 32382 (CO) Primary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD25649 (ME) Secondary

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
01323823	Medicaid	CO	-
3392924	Medicaid	MI	-
09-31941	Other	MI	PHP
M10000934	Other	MI	CHAMPUS
RT071199	Other	MI	STATE LICENSE

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 Robert Thomas?

Robert Thomas is registered in NPPES with the primary taxonomy of Orthopaedic 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-17.