Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William R Griffitts, MD
Hospitalist Physician in Auburn, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811008063
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Registry record
Entity type Individual (Type 1)
Name William R Griffitts
Credential MD
Sex Male
Practice address 11815 Education St, Auburn, CA, 95602
Phone (530) 887-6978
Fax (530) 889-6035
Enumeration date Aug 31, 2006
Last updated in NPPES May 15, 2015
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A7885 (CA) Secondary
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 |
|---|---|---|---|
| 00AX78850 | 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.
Frequently asked questions
Where does William Griffitts practice?
The practice location on file with NPPES is in Auburn, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Griffitts?
The National Provider Identifier (NPI) for William Griffitts is 1811008063, 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 2015-05-15.