Registry data as of Aug 27, 2026

Mary Walter, PA

Medical Physician Assistant · Saint Helena, CA

Mary Walter, PA is a medical physician assistant with a practice address in Saint Helena, California, and NPI 1770890345, issued on Sep 2, 2010. Check the license (California PA11328, 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.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1770890345
Name
Mary Walter
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA11328 CA
Self-reported in NPPES; status is on the state search
Practice location
1222 Pine St, Saint Helena, CA 94574
Phone
(707) 963-3641
Enumerated
Sep 2, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1222 Pine St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Barry Brown, M.D.Family Medicine Physician1346387412
  2. Hillary HoppeFamily Nurse Practitioner1720630049
  3. Marie HughesFamily Medicine Physician1508273095
  4. Beth Lincoln, NPNurse Practitioner1073927380
  5. Melissa Toma, NURSE PRACTITIONERFamily Nurse Practitioner1811694623

Verify Mary Walter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA11328
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Medical Physician Assistant providers in California

There are 3,489 medical physician assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other medical physician assistant records in California

  1. Bridget Abajian, PA-CLos Angeles, CA1518677061
  2. Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA1063467926
  3. Abdol Hamid Abdali Hajiabadi, P.A.Santa Ana, CA1285747964
  4. Jilbert Abnoosian, PALynwood, CA1447300314
  5. Reema Aboelrish, PA-CFresno, CA1376466144
  6. Sakina Abowath, P.A.Diamond Bar, CA1326287525
  7. Selin Abraamyan, PA-CGlendale, CA1144795899
  8. Antonious Abraham, PA-CCovina, CA1003434275
  9. Michelle AbrahamSacramento, CA1952875957
  10. Therese Abraham, P.A.-CGlendale, CA1063726586

Common questions

What is Mary Walter, PA's NPI number?

Mary Walter, PA's National Provider Identifier (NPI) is 1770890345, issued on Sep 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mary Walter, PA located?

The NPPES record lists a practice address at 1222 Pine St, Saint Helena, CA, 94574. Phone: (707) 963-3641. Providers update this record themselves, so call before visiting.

How can I verify Mary Walter, PA's license?

NPPES lists California license number PA11328, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.