NPPES file of Aug 9, 2026

Ruth Nyamoita Volkenant, PA

Physician Assistant · Santa Rosa, CA

Ruth Nyamoita Volkenant, PA is a physician assistant with a practice address in Santa Rosa, California, and NPI 1174277842, issued on Feb 10, 2022. Check the license (California 60406, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174277842
Name
Ruth Nyamoita Volkenant
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
60406 CA
Self-reported in NPPES; status is on the state search
Practice location
2308 Roburta LN, Santa Rosa, CA 95403
Phone
(612) 298-6095
Enumerated
Feb 10, 2022
Record last updated
Jun 13, 2022
Medicare enrollment
Enrolled (PECOS I20240409003676); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ruth Nyamoita Volkenant 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 60406
    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

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26% fewer Medicare Part D claims than the average physician assistant in 2024

611 Medicare Part D claims for 64 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 12 claims were for opioids.

  1. Ruth Volkenant611
  2. Specialty average830

Most prescribed

  1. Lisinopril30 claims
  2. Atorvastatin Calcium29 claims
  3. Levothyroxine Sodium28 claims
  4. Quetiapine Fumarate23 claims
  5. Amlodipine Besylate17 claims
  6. Metoprolol Succinate16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. J M Geiss DO ApcSanta Clarita, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ruth Nyamoita Volkenant among 14,451 physician assistant records in California

Ruth Nyamoita Volkenant, PA 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 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 20% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2021 · median 2018 among the 7,214 with a school on file
  • Record last updated2022 · 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.

The 8 physician assistant records with the nearest ZIP codes

  1. Angela Abboud, MMS, PA-CSanta Rosa, CA 954031114399334
  2. Cecilia Alvarez Barajas, PASanta Rosa, CA 954031942844055
  3. Wayne Anderson, ND, PASanta Rosa, CA 954031124251848
  4. Jennifer BleckSanta Rosa, CA 954031326683350
  5. Ann Bruner-Welch, PA-CSanta Rosa, CA 954031235203274
  6. Christian Campanile, PA-CSanta Rosa, CA 954031790831253
  7. Michelle Campos, PA-CSanta Rosa, CA 954031740538891
  8. Crystal Cox, PASanta Rosa, CA 954031811195100

Common questions

What is Ruth Nyamoita Volkenant, PA's NPI number?

Ruth Nyamoita Volkenant, PA's National Provider Identifier (NPI) is 1174277842, issued on Feb 10, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Ruth Nyamoita Volkenant, PA located?

The NPPES record lists a practice address at 2308 Roburta LN, Santa Rosa, CA, 95403. Phone: (612) 298-6095. Providers update this record themselves, so call before visiting.

How can I verify Ruth Nyamoita Volkenant, PA's license?

NPPES lists California license number 60406, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ruth Nyamoita Volkenant, PA prescribe under Medicare Part D?

In 2024, Ruth Nyamoita Volkenant, PA had 611 Medicare Part D claims for 64 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.