NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Claude J Fortin, MD

Neurology Physician in Castle Rock, CO · enumerated 2006.

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

National Provider Identifier

1235225780

Verified

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Registry record

Entity type Individual (Type 1)
Name Claude J Fortin
Credential MD
Sex Male
Practice address Castle Rock, CO, 80108
Fax (949) 561-4369
Enumeration date Oct 4, 2006
Last updated in NPPES Feb 27, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 036-067171 (IL) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 01033169A (IN) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License G-175604 (CA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License ME153694 (FL) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD-52938 (IA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MC2438 (ID) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 24898 (NV) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 68919 (TN) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License U1594 (TX) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 0101284074 (VA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License IMLC.MD61561045 (WA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 69028 (AZ) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD25913 (ME) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License CDRH.0057033 (CO) 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
036067171 Medicaid IL -

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 is the NPI number for Claude Fortin?
The National Provider Identifier (NPI) for Claude Fortin is 1235225780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Claude Fortin practice?
The practice location on file with NPPES is in Castle Rock, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-27.