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Dr. Clinton J. Duncan, M.D.

Ophthalmology Physician in Cedar City, UT · enumerated 2010.

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

National Provider Identifier

1770894776

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Registry record

Entity type Individual (Type 1)
Name Dr. Clinton J. Duncan
Credential M.D.
Sex Male
Practice address 1811 W Royal Hunte Dr Ste 1, Cedar City, UT, 84720
Phone (435) 586-1131
Fax (435) 865-1121
Enumeration date Jun 24, 2010
Last updated in NPPES Jul 12, 2018

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 90003381205 (UT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What specialty is Clinton Duncan?
Clinton Duncan is registered in NPPES with the primary taxonomy of Ophthalmology 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 2018-07-12.