Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James F Roy, MD

Q: What is the NPI number for James Roy?

The National Provider Identifier (NPI) for James Roy is 1063511822, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Corona, CA · enumerated 2006.

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

National Provider Identifier

1063511822

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Registry record

Entity type Individual (Type 1)

Name Dr. James F Roy

Credential MD

Sex Male

Practice address 341 Magnolia Avenue, Suite 207, Corona, CA, 92879

Phone (951) 734-9930

Fax (951) 734-9692

Enumeration date Sep 21, 2006

Last updated in NPPES Oct 28, 2009

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G35406 (CA) 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
00G354060	Medicaid	CA	-

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 James Roy?

The National Provider Identifier (NPI) for James Roy is 1063511822, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Roy practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-28.