Helen Thao Huynh, D.O
Obstetrics & Gynecology Physician · Rosemead, CA
Helen Thao Huynh, D.O is an obstetrics & gynecology physician with a practice address in Rosemead, California, and NPI 1588820518, issued on Jul 29, 2008. Check the license (California 20A10923, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Helen Thao Huynh
- Credential
- D.O
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 20A10923 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3006 San Gabriel Blvd, Rosemead, CA 91770
- Phone
- (626) 779-8900
- Enumerated
- Jul 29, 2008
- Record last updated
- Oct 13, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (626) 940-5225
- Medicaid ID
- FHC70477F CA
- Medicare enrollment
- Enrolled (PECOS I20101215000802); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 3006 San Gabriel Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harlene Castillo, WHNP-BCObstetrics & Gynecology Nurse Practitioner1629720834
- Yi-Chun ChengFamily Nurse Practitioner1457805855
- Julie DaoPhysician Assistant1851119234
- Wei GuoObstetrics & Gynecology Physician1114722535
- Ka Lee HoPhysician Assistant1598450561
- Sarahjoy Moreno, NPWomen's Health Nurse Practitioner1891562310
Verify Helen Thao Huynh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
410 Medicare Part D claims for 155 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 32 claims were for opioids.
Most prescribed
- Estradiol45 claims
- Ibuprofen40 claims
- Clotrimazole-Betamethasone37 claims
- Metronidazole32 claims
- Acetaminophen-Codeine28 claims
- Fluconazole28 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.
The MIPS final score for 2023 (Medicare payment program): 30 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $27.78
1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Helen Huynh D O IncRosemead, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Ahmed Abdelaziz, MDSanta Maria, CA1790039733
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
Common questions
What is Helen Thao Huynh, D.O's NPI number?
Helen Thao Huynh, D.O's National Provider Identifier (NPI) is 1588820518, issued on Jul 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Helen Thao Huynh, D.O located?
The NPPES record lists a practice address at 3006 San Gabriel Blvd, Rosemead, CA, 91770. Phone: (626) 779-8900. Providers update this record themselves, so call before visiting.
How can I verify Helen Thao Huynh, D.O's license?
NPPES lists California license number 20A10923, 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 Helen Thao Huynh, D.O prescribe under Medicare Part D?
In 2024, Helen Thao Huynh, D.O had 410 Medicare Part D claims for 155 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Helen Thao Huynh, D.O's MIPS final score?
The 2023 MIPS final score is 30 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.