NPPES file of Aug 9, 2026

Margaret Anh Nguyen Dziat, AA-C

Medical Physician Assistant · Modesto, CA

Margaret Anh Nguyen Dziat, AA-C is a medical physician assistant with a practice address in Modesto, California, and NPI 1760120927, issued on May 26, 2022. Check the license 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
1760120927
Name
Margaret Anh Nguyen Dziat
Credential
AA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
Practice location
3105 Mchenry Ave Ste 101, Modesto, CA 95350
Phone
(209) 575-2700
Enumerated
May 26, 2022
Record last updated
Feb 22, 2026
Medicare enrollment
Enrolled (PECOS I20240924004821); 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 3105 Mchenry Ave Ste 101

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

  1. Tanner CavanaughMedical Physician Assistant1811394976
  2. Agatha Covarrubias, NPNurse Practitioner1417329640

Verify Margaret Anh Nguyen Dziat in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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76% fewer Medicare Part D claims than the average medical physician assistant in 2024

270 Medicare Part D claims for 200 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 43 claims were for opioids.

  1. Margaret Dziat270
  2. Specialty average1,148

Most prescribed

  1. Cephalexin55 claims
  2. Oxycodone Hcl30 claims
  3. Prednisone26 claims
  4. Ondansetron Hcl18 claims
  5. Amoxicillin-Clavulanate Potass16 claims
  6. Ibuprofen15 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.

Bills Medicare through one group practice

  1. LA Laser Center PC A Professional Medical CorporationModesto, CA

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

Margaret Anh Nguyen Dziat among 3,376 medical physician assistant records in California

Margaret Anh Nguyen Dziat, AA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 82% of them.

  • NPI issued2022 · 82% of these records are older, 14% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2022 · median 2012 among the 1,347 with a school on file
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Sheena Allen, PAModesto, CA 953501134473564
  2. Angelica Buenrostro, PA-CModesto, CA 953501720052418
  3. Tanner CavanaughModesto, CA 953501811394976
  4. Kristine Rebiero, PA-CModesto, CA 953501992987259
  5. Ser Vang, P.A.-C.Modesto, CA 953501699784470
  6. Lori Doyle, PAModesto, CA 953511982755161
  7. Jazmine Hockaday, PAModesto, CA 953511548805427
  8. Amelia Lopez, PHYSICIAN ASSISTANTMerced, CA 953481124153440

Common questions

What is Margaret Anh Nguyen Dziat, AA-C's NPI number?

Margaret Anh Nguyen Dziat, AA-C's National Provider Identifier (NPI) is 1760120927, issued on May 26, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Anh Nguyen Dziat, AA-C located?

The NPPES record lists a practice address at 3105 Mchenry Ave Ste 101, Modesto, CA, 95350. Phone: (209) 575-2700. Providers update this record themselves, so call before visiting.

How can I verify Margaret Anh Nguyen Dziat, AA-C's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Margaret Anh Nguyen Dziat, AA-C prescribe under Medicare Part D?

In 2024, Margaret Anh Nguyen Dziat, AA-C had 270 Medicare Part D claims for 200 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.