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Clifford H. Siegel, M.D., P.C.

Child & Adolescent Psychiatry Physician in Denver, CO · enumerated 2007 · authorized official Clifford Siegel, President.

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

National Provider Identifier

1891980447

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Registry record

Entity type Organization (Type 2)
Legal business name Clifford H. Siegel, M.D., P.C.
Practice address 2696 S Colorado Blvd, Suite 200, Denver, CO, 80222
Phone (303) 758-8700
Fax (303) 692-9353
Enumeration date Sep 6, 2007
Last updated in NPPES Sep 6, 2007

Taxonomy & classification

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 2282 (CO) Secondary
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 22035 (CO) Primary

Authorized official

Name Clifford Siegel
Title President
Phone (303) 758-8700

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

Who is the authorized official for Clifford H. Siegel, M.D., P.C.?
NPPES lists Clifford Siegel (President) as the authorized official for this organization.
What is the NPI number for Clifford H. Siegel, M.D., P.C.?
The NPI for Clifford H. Siegel, M.D., P.C. is 1891980447, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-06.