NPPES file of Aug 9, 2026

Mariana Alamillo

Physician Assistant · Santa Maria, CA

Mariana Alamillo is a physician assistant with a practice address in Santa Maria, California, and NPI 1649009986, issued on Jul 26, 2024. Check the license (California PA66745, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649009986
Name
Mariana Alamillo
Primary taxonomy
Physician Assistant 363A00000X
License number
PA66745 CA
Self-reported in NPPES; status is on the state search
Practice location
2801 Santa Maria Way, Santa Maria, CA 93455
Phone
(805) 934-5400
Enumerated
Jul 26, 2024
Record last updated
Sep 10, 2025
Fax
(805) 938-9207
Medicare enrollment
Enrolled (PECOS I20250924003825); may accept Medicare assignment
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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8 nearest physician assistant records → All 14,451 in California → Look up another NPI →

Also registered at 2801 Santa Maria Way

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

  1. Marjorie Allomong, MSN, APRN, CPNP-PCPediatric Nurse Practitioner1770318040
  2. Linda BaileyHome Health Registered Nurse1083893994
  3. Jimmy Baker, MDInternal Medicine Physician1912054487
  4. Federico Banales, MDPsychiatry Physician1255383485
  5. David BentleyPodiatrist1750796660
  6. Hugo Bravo-Chavez, PA-CPhysician Assistant1659708147

Verify Mariana Alamillo 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 PA66745    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.

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Mariana Alamillo among 14,451 physician assistant records in California

Mariana Alamillo 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 not. Its NPI, issued in 2024, is newer than 87% of them.

  • NPI issued2024 · 87% of these records are older, 7% newer
  • In a Medicare fileNo · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2024 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 14,451 in California → Every provider in Santa Maria → Physician Assistant nationwide →

The 8 physician assistant records with the nearest ZIP codes

  1. Frank Aranda, PASanta Maria, CA 934551962488528
  2. Hugo Bravo-Chavez, PA-CSanta Maria, CA 934551659708147
  3. Jose Chavez, PHYSICIAN ASSISTANTSanta Maria, CA 934551225323116
  4. Scott Cowger, PA-CSanta Maria, CA 934551356779110
  5. Bernadette Gonsalves, P.A.Santa Maria, CA 934551083631790
  6. Jeanette GudinoSanta Maria, CA 934551538883293
  7. Jessica KohlerSanta Maria, CA 934551306438395
  8. Drew Leggett, PA-CSanta Maria, CA 934551740816552

Common questions

What is Mariana Alamillo's NPI number?

Mariana Alamillo's National Provider Identifier (NPI) is 1649009986, issued on Jul 26, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Mariana Alamillo located?

The NPPES record lists a practice address at 2801 Santa Maria Way, Santa Maria, CA, 93455. Phone: (805) 934-5400. Providers update this record themselves, so call before visiting.

How can I verify Mariana Alamillo's license?

NPPES lists California license number PA66745, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.