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Dr. Michael L Richardson Jr., M.D.

Geriatric Medicine (Family Medicine) Physician in Vacaville, CA · enumerated 2009 · practices at Snf Rehab Only.

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

National Provider Identifier

1831327899

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Registry record

Entity type Individual (Type 1)
Name Dr. Michael L Richardson Jr.
Credential M.D.
Sex Male
Practice address 269 Sage Sparrow Cir, Vacaville, CA, 95687
Phone (707) 451-4111
Enumeration date Jun 29, 2009
Last updated in NPPES Aug 10, 2022

Taxonomy & licenses

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 35.122296 (OH) Secondary
207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License A155227 (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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Michael Richardson?
Michael Richardson is registered in NPPES with the primary taxonomy of Geriatric Medicine (Family Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-10.