NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Randolph A Clark, M.D.

Internal Medicine Physician in Phoenix, AZ · enumerated 2005.

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

National Provider Identifier

1568456036

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Randolph A Clark
Credential M.D.
Sex Male
Practice address 2510 W Dunlap Ave Ste 290, Phoenix, AZ, 85021
Fax (602) 789-8389
Enumeration date Sep 9, 2005
Last updated in NPPES Apr 7, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 26212 (NV) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 27792 (AZ) 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
648751 Medicaid AZ -

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 Randolph Clark?
The National Provider Identifier (NPI) for Randolph Clark is 1568456036, a Type 1 (individual) record in the CMS NPPES registry.
Where does Randolph Clark practice?
The practice location on file with NPPES is in Phoenix, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-07.