Mary Jo Williams, RN
Administrator Registered Nurse · Oakland, CA
Mary Jo Williams, RN is an administrator registered nurse with a practice address in Oakland, California, and NPI 1144333220, issued on Aug 16, 2006. Check the license (California 271936, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Jo Williams
- Credential
- RN
- Primary taxonomy
- Administrator Registered Nurse 163WA2000X
- License number
- 271936 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1950 Franklin St, Oakland, CA 94612
- Phone
- (510) 987-3647
- Enumerated
- Aug 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1950 Franklin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Jo Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 271936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Administrator Registered Nurse providers in California
There are 303 administrator registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other administrator registered nurse records in California
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- Karla AmayaEl Monte, CA1578913091
- Laura Andrade, RNFresno, CA1346064730
- Tiffany Apple, REGISTERED NURSEBakersfield, CA1942841432
- Patricia Atkins, BSNLinden, CA1538857669
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Common questions
What is Mary Jo Williams, RN's NPI number?
Mary Jo Williams, RN's National Provider Identifier (NPI) is 1144333220, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Jo Williams, RN located?
The NPPES record lists a practice address at 1950 Franklin St, Oakland, CA, 94612. Phone: (510) 987-3647. Providers update this record themselves, so call before visiting.
How can I verify Mary Jo Williams, RN's license?
NPPES lists California license number 271936, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.