William R. Mensinger, P.A.
Physician Assistant · Hayward, CA
William R. Mensinger, P.A. is a physician assistant with a practice address in Hayward, California, and NPI 1629092135, issued on Jul 27, 2006. Check the license (California PA13709, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William R. Mensinger
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA13709 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27200 Calaroga Ave, Hayward, CA 94545
- Phone
- (510) 264-4026
- Enumerated
- Jul 27, 2006
- Record last updated
- Nov 6, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 27200 Calaroga Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yahya Ahmed, M.D.Internal Medicine Physician1124283312
- Neelima Akkinapalli, P.A.Physician Assistant1154523496
- Matthew Andrews, NPAcute Care Nurse Practitioner1699645424
- Yalda Bahrani, FNP-CNurse Practitioner1770182388
- Manon Baze, PAPhysician Assistant1104849520
- John Bell, M.D.Internal Medicine Physician1720282932
Verify William R. Mensinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA13709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $32.12
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William R. Mensinger among 14,451 physician assistant records in California
William R. Mensinger, P.A. is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2009 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physician Assistant providers in California
There are 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Hayward → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Neelima Akkinapalli, P.A.Hayward, CA 945451154523496
- Manon Baze, PAHayward, CA 945451104849520
- Beau Britton, P.A.Hayward, CA 945451689698565
- Frank CrespoHayward, CA 945451578174231
- Leann Eisenbise, P.A.Hayward, CA 945451619169927
- Hans Han, PA-CHayward, CA 945451609228915
- Johanna Ho, PA-CHayward, CA 945451992227805
- Muhammad Khan, PA-CHayward, CA 945451215234737
Common questions
What is William R. Mensinger, P.A.'s NPI number?
William R. Mensinger, P.A.'s National Provider Identifier (NPI) is 1629092135, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William R. Mensinger, P.A. located?
The NPPES record lists a practice address at 27200 Calaroga Ave, Hayward, CA, 94545. Phone: (510) 264-4026. Providers update this record themselves, so call before visiting.
How can I verify William R. Mensinger, P.A.'s license?
NPPES lists California license number PA13709, 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. Medicare files from data.cms.gov. 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.