Samantha Ashley Stewart, PA-C
Physician Assistant · Santa Rosa, CA
Samantha Ashley Stewart, PA-C is a physician assistant with a practice address in Santa Rosa, California, and NPI 1073098000, issued on Sep 25, 2018. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Samantha Ashley Stewart
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 1165 Montgomery Dr, Santa Rosa, CA 95405
- Phone
- (949) 381-4966
- Enumerated
- Sep 25, 2018
- Record last updated
- Oct 22, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181201000242); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1165 Montgomery Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maryam Aghighi, MDAnatomic Pathology & Clinical Pathology Physician1073074977
- Johnathan Agil, MDEmergency Medicine Physician1700413002
- Katherine Aldrich, NPAdult Health Nurse Practitioner1194995563
- Mujeeb Altaf, MBBS.,MRCP(UK)Hospitalist Physician1316125941
- Rebecca Althoff, RNFARegistered Nurse First Assistant1427119668
- Sanyogeeta Bhaway, M.D.Internal Medicine Physician1275828162
Verify Samantha Ashley Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average physician assistant in 2024
118 Medicare Part D claims for 30 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Potassium Chloride23 claims
- Furosemide20 claims
- Metoprolol Tartrate14 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.
Industry payments in 2024: $179.12
2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences 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.
Bills Medicare through one group practice
- Providence Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samantha Ashley Stewart among 14,451 physician assistant records in California
Samantha Ashley Stewart, PA-C 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2018 among the 7,214 with a school on file
- Record last updated2018 · 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 Santa Rosa → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Eric Bell, PA-CSanta Rosa, CA 954051891217204
- Leslie Cady, P.A.-CSanta Rosa, CA 954051952586547
- Rodney Dekleuver, PHYSICIAN ASSISTANTSanta Rosa, CA 954051487118105
- Amber Gomes, PA-CSanta Rosa, CA 954051669803441
- James Grossman, P.A.Santa Rosa, CA 954051356776355
- Jennifer Henshaw-Lefever, PA, O.T.Santa Rosa, CA 954051891997227
- Robert Smith, P.A.Santa Rosa, CA 954051477765931
- Brittany Sweeney, PASanta Rosa, CA 954051013550698
Common questions
What is Samantha Ashley Stewart, PA-C's NPI number?
Samantha Ashley Stewart, PA-C's National Provider Identifier (NPI) is 1073098000, issued on Sep 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Ashley Stewart, PA-C located?
The NPPES record lists a practice address at 1165 Montgomery Dr, Santa Rosa, CA, 95405. Phone: (949) 381-4966. Providers update this record themselves, so call before visiting.
How can I verify Samantha Ashley Stewart, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Samantha Ashley Stewart, PA-C prescribe under Medicare Part D?
In 2024, Samantha Ashley Stewart, PA-C had 118 Medicare Part D claims for 30 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.