NPPES file of Aug 9, 2026

Ly H. Truong, MD

Obstetrics & Gynecology Physician · Modesto, CA

Ly H. Truong, MD is an obstetrics & gynecology physician with a practice address in Modesto, California, and NPI 1518019744, issued on Jan 17, 2007. Check the license (California A85566, as entered in NPPES) on the Medical Board of California; 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
1518019744
Name
Ly H. Truong
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A85566 CA
Self-reported in NPPES; status is on the state search
Practice location
4601 Dale RD, Modesto, CA 95356
Phone
(209) 557-1000
Enumerated
Jan 17, 2007
Record last updated
Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070406000306); 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 4601 Dale RD

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

  1. Angela Abe, OPTOptometrist1336108885
  2. Seth Ackuayi, MDHospitalist Physician1154409985
  3. Laith Al-Najjar, D.O.Emergency Medicine Physician1932801768
  4. Zaid Alazawi, DOStudent in an Organized Health Care Education/Training Program1295583102
  5. Brandi AlbrittonCertified Respiratory Therapist1326503541
  6. Hilda Alcala, MDAnesthesiology Physician1467644427

Verify Ly H. Truong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85566
    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
Open the California license search

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35% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

107 Medicare Part D claims for 48 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Ly Truong107
  2. Specialty average165

Most prescribed

  1. Estradiol43 claims
  2. Clobetasol Propionate23 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. Permanente Medical Group IncModesto, CA

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

Ly H. Truong among 5,088 obstetrics & gynecology physician records in California

Ly H. Truong, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 48% of them.

  • NPI issued2007 · 48% of these records are older, 38% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2002 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Amardeep Deol, MDModesto, CA 953561457439366
  2. Laura Gabriele, MDModesto, CA 953561427100650
  3. Lilian Galicia, MDModesto, CA 953561861570756
  4. Justin Hutchison, D.O.Modesto, CA 953561033524178
  5. Darshana Kittur, MDModesto, CA 953561194922351
  6. Leslie Man-Severance, MDModesto, CA 953561891896965
  7. Bridget Norman-Malme, MDModesto, CA 953561700964525
  8. Inna Tarasula, M.D.Modesto, CA 953561427249432

Common questions

What is Ly H. Truong, MD's NPI number?

Ly H. Truong, MD's National Provider Identifier (NPI) is 1518019744, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ly H. Truong, MD located?

The NPPES record lists a practice address at 4601 Dale RD, Modesto, CA, 95356. Phone: (209) 557-1000. Providers update this record themselves, so call before visiting.

How can I verify Ly H. Truong, MD's license?

NPPES lists California license number A85566, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ly H. Truong, MD prescribe under Medicare Part D?

In 2024, Ly H. Truong, MD had 107 Medicare Part D claims for 48 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.