NPPES file of Aug 9, 2026

Hilda Mancilla, PA-C

Physician Assistant · Rialto, CA

Hilda Mancilla, PA-C is a physician assistant with a practice address in Rialto, California, and NPI 1932310067, issued on May 24, 2007. Check the license (California PA16159, 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
1932310067
Name
Hilda Mancilla
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA16159 CA
Self-reported in NPPES; status is on the state search
Practice location
1850 N Riverside Ave, Rialto, CA 92376
Phone
(909) 562-0255
Enumerated
May 24, 2007
Record last updated
Jun 10, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(909) 421-3034
Medicare enrollment
Enrolled (PECOS I20101015000445); 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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Also registered at 1850 N Riverside Ave

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

  1. Salvador Abiera, D.P.T., P.T.Geriatric Physical Therapist1760494843
  2. Delfin Dano, MDPediatrics Physician1164505020
  3. Gary Freestone, ODOptometrist1336214998
  4. Hedyeh Golshan, M.D.Internal Medicine Physician1174582688
  5. Jesse Guadiz, M.D.Family Medicine Physician1558317933
  6. Nauz Hassanshahi, ODOptometrist1497266357

Verify Hilda Mancilla 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 PA16159
    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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97% more Medicare Part D claims than the average physician assistant in 2024

1,636 Medicare Part D claims for 427 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Hilda Mancilla1,636
  2. Specialty average830

Most prescribed

  1. Losartan Potassium78 claims
  2. Azithromycin69 claims
  3. Amlodipine Besylate55 claims
  4. Atorvastatin Calcium49 claims
  5. Diclofenac Sodium43 claims
  6. Levothyroxine Sodium41 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: $613.75

33 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.

  1. Hilda Mancilla$613.75
  2. Specialty average$841.65

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. Ravinder Singh MD., IncRancho Cucamonga, CA

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

Hilda Mancilla among 14,451 physician assistant records in California

Hilda Mancilla, 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 2007, is newer than 13% of them.

  • NPI issued2007 · 13% of these records are older, 78% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2001 · median 2018 among the 7,214 with a school on file
  • Record last updated2013 · 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).

17 physician assistant records list a practice address in Rialto

They are 17 of the 1,044 NPPES records with a practice address in Rialto, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Michael Alvarez, PA-CRialto, CA 923761922811207
  2. Adair Buckner, PHYSICIAN ASSISTANTRialto, CA 923761912198201
  3. Luis Buenrostro Martinez, MARialto, CA 923761164213252
  4. Grace Buonavita, PACRialto, CA 923761396805479
  5. Martha Colunga, PA-CRialto, CA 923761588787055
  6. Kristen Martini, PA-CRialto, CA 923761669326203
  7. Shannon MezaRialto, CA 923761942670856
  8. Mickoyan Poole, PA-CRialto, CA 923761316201734

Common questions

What is Hilda Mancilla, PA-C's NPI number?

Hilda Mancilla, PA-C's National Provider Identifier (NPI) is 1932310067, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hilda Mancilla, PA-C located?

The NPPES record lists a practice address at 1850 N Riverside Ave, Rialto, CA, 92376. Phone: (909) 562-0255. Providers update this record themselves, so call before visiting.

How can I verify Hilda Mancilla, PA-C's license?

NPPES lists California license number PA16159, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hilda Mancilla, PA-C prescribe under Medicare Part D?

In 2024, Hilda Mancilla, PA-C had 1,636 Medicare Part D claims for 427 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.