NPPES file of Aug 9, 2026

Hiep D. Ma, PA-C

Physician Assistant · Sacramento, CA

Hiep D. Ma, PA-C is a physician assistant with a practice address in Sacramento, California, and NPI 1790328250, issued on Oct 28, 2019. Check the license (California PA57354, 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
1790328250
Name
Hiep D. Ma
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA57354 CA
Self-reported in NPPES; status is on the state search
Practice location
3301 C St Ste 1400, Sacramento, CA 95816
Phone
(916) 734-6795
Enumerated
Oct 28, 2019
Record last updated
Nov 15, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200113000725); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 3301 C St Ste 1400

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

  1. Boya Abudu, MD, MPHDermatology Physician1336608637
  2. Alain Brassard, MD FRCPC FABDDermatology Physician1942711486
  3. Ilana Breen, MDStudent in an Organized Health Care Education/Training Program1770169120
  4. Lawrence Chan, M.D., M.H.A.Dermatology Physician1912916263
  5. Austin HwangStudent in an Organized Health Care Education/Training Program1215607015
  6. Ted Jacoby, MDStudent in an Organized Health Care Education/Training Program1306520374

Verify Hiep D. Ma 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 PA57354
    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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72% fewer Medicare Part D claims than the average physician assistant in 2024

232 Medicare Part D claims for 126 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Hiep Ma232
  2. Specialty average830

Most prescribed

  1. Triamcinolone Acetonide42 claims
  2. Fluorouracil30 claims
  3. Clobetasol Propionate21 claims
  4. Ketoconazole21 claims
  5. Jublia17 claims
  6. Doxycycline Hyclate14 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: $1,018.69

11 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, 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. Hiep Ma$1,018.69
  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 2 group practices

  1. Regents OF The Univ OF CARancho Cordova, CA
  2. Regents OF The University OF CaliforniaSacramento, CA

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

Hiep D. Ma among 14,451 physician assistant records in California

Hiep D. Ma, 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 2019, is newer than 56% of them.

  • NPI issued2019 · 56% of these records are older, 38% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2019 · median 2018 among the 7,214 with a school on file
  • Record last updated2019 · 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).

387 physician assistant records list a practice address in Sacramento

They are 387 of the 33,083 NPPES records with a practice address in Sacramento, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Alene Antelman-Aldrich, PASacramento, CA 958161750328951
  2. Thomas Carmody, P.A.,CSacramento, CA 958161184731713
  3. Leo Carpenter, PASacramento, CA 958161629077946
  4. Yi Chen, PA-CSacramento, CA 958161497774194
  5. Nina Deweese, PASacramento, CA 958161578572376
  6. Garry Grey, PA-CSacramento, CA 958161750329009
  7. Glenda Hillman, P.A.Sacramento, CA 958161962513341
  8. Moonny Lee, PA-CSacramento, CA 958161124088893

Common questions

What is Hiep D. Ma, PA-C's NPI number?

Hiep D. Ma, PA-C's National Provider Identifier (NPI) is 1790328250, issued on Oct 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Hiep D. Ma, PA-C located?

The NPPES record lists a practice address at 3301 C St Ste 1400, Sacramento, CA, 95816. Phone: (916) 734-6795. Providers update this record themselves, so call before visiting.

How can I verify Hiep D. Ma, PA-C's license?

NPPES lists California license number PA57354, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hiep D. Ma, PA-C prescribe under Medicare Part D?

In 2024, Hiep D. Ma, PA-C had 232 Medicare Part D claims for 126 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.