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R. Ryan Platt, M.D.

Interventional Cardiology Physician in Walnut Creek, CA · enumerated 2005.

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

National Provider Identifier

1265430417

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Registry record

Entity type Individual (Type 1)
Name R. Ryan Platt
Credential M.D.
Sex Male
Practice address 1399 Ygnacio Valley Rd, 11, Walnut Creek, CA, 94598
Phone (925) 937-1770
Fax (925) 937-0630
Enumeration date Jul 12, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License G26928 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 R. Platt practice?
The practice location on file with NPPES is in Walnut Creek, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for R. Platt?
The National Provider Identifier (NPI) for R. Platt is 1265430417, 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 2007-07-08.