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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter D Riley, M.D.

Critical Care Medicine (Internal Medicine) Physician in Lakewood, CO · enumerated 2006.

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

National Provider Identifier

1942260237

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Registry record

Entity type Individual (Type 1)
Name Dr. Peter D Riley
Credential M.D.
Sex Male
Practice address 274 Union Blvd, Suite 110, Lakewood, CO, 80228
Phone (303) 951-0600
Fax (303) 951-0605
Enumeration date Mar 23, 2006
Last updated in NPPES Jan 18, 2012

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 32965 (CO) Primary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 32965 (CO) Secondary
207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 32965 (CO) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 32965 (CO) 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
01329655 Medicaid CO -
04594040 Medicaid CO -

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

Where does Peter Riley practice?
The practice location on file with NPPES is in Lakewood, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Peter Riley?
The National Provider Identifier (NPI) for Peter Riley is 1942260237, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-18.