NPPES file of Aug 9, 2026

Ana Mae Aum Abaya, NP

Family Nurse Practitioner · Ontario, CA

Ana Mae Aum Abaya, NP is a family nurse practitioner with a practice address in Ontario, California, and NPI 1255164943, issued on Aug 20, 2024. Check the license (California 95031734, 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
1255164943
Name
Ana Mae Aum Abaya
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95031734 CA
Self-reported in NPPES; status is on the state search
Practice location
2295 S Vineyard Ave, Ontario, CA 91761
Phone
(909) 724-3600
Enumerated
Aug 20, 2024
Record last updated
Oct 29, 2024
Medicare enrollment
Enrolled (PECOS I20241107002382); accepts 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 family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 2295 S Vineyard Ave

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

  1. Sheila Marie Adan, D.O.Family Medicine Physician1912272733
  2. Anna Alley, CRNACertified Registered Nurse Anesthetist1518399732
  3. Hye Hyun An, PHARMDPharmacist1578428470
  4. Leonila Araneta, LCSWClinical Social Worker1861771974
  5. Fernando AvilaFamily Medicine Physician1396364147
  6. Heather Bernhardt-Nevarez, LCSWClinical Social Worker1689177735

Verify Ana Mae Aum Abaya 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 95031734    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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94% fewer Medicare Part D claims than the average family nurse practitioner in 2024

76 Medicare Part D claims for 39 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Ana Mae Abaya76
  2. Specialty average1,305

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: $16.54

1 payment: food and beverage; the largest payer was Phadia US Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ana Mae Abaya$16.54
  2. Specialty average$650.95

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

  1. Unicare Community Health Center, Inc.Fontana, CA

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

Ana Mae Aum Abaya among 16,966 family nurse practitioner records in California

Ana Mae Aum Abaya, NP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 83% of them.

  • NPI issued2024 · 83% of these records are older, 10% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2024 · median 2019 among the 6,793 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 family nurse practitioner records list a practice address in Ontario

They are 48 of the 5,375 NPPES records with a practice address in Ontario, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Ontario → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Michael Baello, MSN, APRN, FNPOntario, CA 917611124661913
  2. Grace BartlettOntario, CA 917611487026050
  3. Michael Conley, NPOntario, CA 917611952647638
  4. Marialuisa Garcia, MSN, FNPOntario, CA 917611104371681
  5. Jacquiline JamoraOntario, CA 917611215276456
  6. Spencer Nguyen, FNPOntario, CA 917611760808125
  7. Chidinma Onuigbo, NP-COntario, CA 917611104337419
  8. Derek Quan, NP-COntario, CA 917611508462862

Common questions

What is Ana Mae Aum Abaya, NP's NPI number?

Ana Mae Aum Abaya, NP's National Provider Identifier (NPI) is 1255164943, issued on Aug 20, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Ana Mae Aum Abaya, NP located?

The NPPES record lists a practice address at 2295 S Vineyard Ave, Ontario, CA, 91761. Phone: (909) 724-3600. Providers update this record themselves, so call before visiting.

How can I verify Ana Mae Aum Abaya, NP's license?

NPPES lists California license number 95031734, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ana Mae Aum Abaya, NP prescribe under Medicare Part D?

In 2024, Ana Mae Aum Abaya, NP had 76 Medicare Part D claims for 39 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

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.