Nathan James Walker, PA
Physician Assistant · Santa Maria, CA
Nathan James Walker, PA is a physician assistant with a practice address in Santa Maria, California, and NPI 1013790021, issued on Aug 14, 2023. Check the license (California 63612, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathan James Walker
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 63612 CA
Self-reported in NPPES; status is on the state search - Practice location
- 116 S Palisade Dr Ste 200, Santa Maria, CA 93454
- Phone
- (805) 739-3968
- Enumerated
- Aug 14, 2023
- Record last updated
- Jun 6, 2025
- Fax
- (805) 739-3051
- Medicare enrollment
- Enrolled (PECOS I20240315001603); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 116 S Palisade Dr Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karmon Cleary, FNP-CFamily Nurse Practitioner1174244651
- Tuvleen Kaur, NPPsychiatric/Mental Health Nurse Practitioner1609741818
- William Keightley, M.D.Psychiatry Physician1730241100
- Kevin Paluay, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1265927180
Verify Nathan James Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 63612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average physician assistant in 2024
2,377 Medicare Part D claims for 314 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Lorazepam234 claims
- Clonazepam214 claims
- Quetiapine Fumarate148 claims
- Trazodone Hcl141 claims
- Sertraline Hcl111 claims
- Olanzapine100 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: $197.97
8 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. 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
- Pacific Central Coast Health CentersSanta Maria, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan James Walker among 14,451 physician assistant records in California
Nathan James Walker, 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 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2023 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 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).
150 physician assistant records list a practice address in Santa Maria
They are 150 of the 3,047 NPPES records with a practice address in Santa Maria, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Santa Maria → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jenny Andrews, PASanta Maria, CA 934541407159429
- Joel Breck, PA, MPHSanta Maria, CA 934541194261099
- Ashley Bridges, PA-CSanta Maria, CA 934541780088328
- Tressa Esty, PA-CSanta Maria, CA 934541720282718
- Anne Hall, PASanta Maria, CA 934541821080060
- Nathan Hamblin, PASanta Maria, CA 934541891123550
- Kelly Piazza, PA-CSanta Maria, CA 934541043560915
- Delane Price, PA-CSanta Maria, CA 934541720025729
Common questions
What is Nathan James Walker, PA's NPI number?
Nathan James Walker, PA's National Provider Identifier (NPI) is 1013790021, issued on Aug 14, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Nathan James Walker, PA located?
The NPPES record lists a practice address at 116 S Palisade Dr Ste 200, Santa Maria, CA, 93454. Phone: (805) 739-3968. Providers update this record themselves, so call before visiting.
How can I verify Nathan James Walker, PA's license?
NPPES lists California license number 63612, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nathan James Walker, PA prescribe under Medicare Part D?
In 2024, Nathan James Walker, PA had 2,377 Medicare Part D claims for 314 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.