Huong T. Duong, M.D.
Internal Medicine Physician · Tustin, CA
Huong T. Duong, M.D. is an internal medicine physician with a practice address in Tustin, California, and NPI 1013020437, issued on Aug 17, 2006. Check the license (California G56794, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Huong T. Duong
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G56794 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17400 Irvine Blvd, Tustin, CA 92780
- Phone
- (714) 838-5610
- Enumerated
- Aug 17, 2006
- Record last updated
- Jun 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090804000109); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 17400 Irvine Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Huong T. Duong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average internal medicine physician in 2024
4,219 Medicare Part D claims for 363 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 37 claims were for opioids.
Most prescribed
- Atorvastatin Calcium305 claims
- Amlodipine Besylate288 claims
- Levothyroxine Sodium207 claims
- Losartan Potassium160 claims
- Lisinopril113 claims
- Simvastatin110 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): 100 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: $523.29
19 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Tustin Irvine Internal Medicine Group Inc.Tustin, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Huong T. Duong among 17,696 internal medicine physician records in California
Huong T. Duong, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1984 · median 2004 among the 11,065 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 internal medicine physician records list a practice address in Tustin
They are 34 of the 2,221 NPPES records with a practice address in Tustin, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Tustin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohamed Al-Sadek, M.D.Tustin, CA 927801154353829
- Susan Ban, M.D.Tustin, CA 927801053324970
- Bernard Bennett, MDTustin, CA 927801871568899
- Jacqueline Do, M.D.Tustin, CA 927801689646952
- Daniel Eichinger, DOTustin, CA 927801598724015
- Pin-Hung Hsieh, M.D.Tustin, CA 927801144323064
- Thomas Hwang, M.D.Tustin, CA 927801124039722
- Deepika Lekawa, M.D.Tustin, CA 927801437248846
Common questions
What is Huong T. Duong, M.D.'s NPI number?
Huong T. Duong, M.D.'s National Provider Identifier (NPI) is 1013020437, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Huong T. Duong, M.D. located?
The NPPES record lists a practice address at 17400 Irvine Blvd, Tustin, CA, 92780. Phone: (714) 838-5610. Providers update this record themselves, so call before visiting.
How can I verify Huong T. Duong, M.D.'s license?
NPPES lists California license number G56794, 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 Huong T. Duong, M.D. prescribe under Medicare Part D?
In 2024, Huong T. Duong, M.D. had 4,219 Medicare Part D claims for 363 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Huong T. Duong, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.