Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chad Michael Clark, MD

Q: What is the NPI number for Chad Clark?

The National Provider Identifier (NPI) for Chad Clark is 1275517831, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in Reno, NV · enumerated 2005.

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

National Provider Identifier

1275517831

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Registry record

Entity type Individual (Type 1)

Name Chad Michael Clark

Credential MD

Sex Male

Practice address 1155 Mill St, Reno, NV, 89502

Phone (775) 982-5000

Fax (775) 982-3900

Enumeration date Dec 6, 2005

Last updated in NPPES Apr 14, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 25106 (NV) 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
3616084	Other	-	AETNA HMO
7095608	Other	-	AETNA PPO
560988142	Other	-	UNITED HEALTHCARE
804966	Other	-	PARTNERS
N0019C	Medicaid	SC	-
D4989	Other	-	MEDCOST
P00183056	Other	-	RAILROAD MEDICARE
1377R	Other	-	BLUE CROSS BLUE SHIELD
891377R	Medicaid	NC	-

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

Where does Chad Clark practice?

The practice location on file with NPPES is in Reno, NV. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Chad Clark?

The National Provider Identifier (NPI) for Chad Clark is 1275517831, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-14.