Kien Phuc Tran, MD
Internal Medicine Physician · Tustin, CA
Kien Phuc Tran, MD is an internal medicine physician with a practice address in Tustin, California, and NPI 1396831889, issued on Oct 4, 2006. Check the license (California A88769, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kien Phuc Tran
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A88769 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15491 Pasadena Ave Apt 87, Tustin, CA 92780
- Phone
- (832) 287-6252
- Enumerated
- Oct 4, 2006
- Record last updated
- Sep 11, 2025
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Kien Phuc Tran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A88769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,351 Medicare Part D claims for 9,350 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 65 claims were for opioids.
Most prescribed
- Atorvastatin Calcium3,985 claims
- Losartan Potassium1,471 claims
- Lisinopril1,371 claims
- Metformin Hcl1,264 claims
- Rosuvastatin Calcium887 claims
- Simvastatin530 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: $22.54
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Kien Phuc Tran among 17,696 internal medicine physician records in California
Kien Phuc Tran, MD 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 fileNo · 63% of these records are
- Record last updated2025 · 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
- Huong Duong, M.D.Tustin, CA 927801013020437
- Daniel Eichinger, DOTustin, CA 927801598724015
- Pin-Hung Hsieh, M.D.Tustin, CA 927801144323064
- Thomas Hwang, M.D.Tustin, CA 927801124039722
Common questions
What is Kien Phuc Tran, MD's NPI number?
Kien Phuc Tran, MD's National Provider Identifier (NPI) is 1396831889, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kien Phuc Tran, MD located?
The NPPES record lists a practice address at 15491 Pasadena Ave Apt 87, Tustin, CA, 92780. Phone: (832) 287-6252. Providers update this record themselves, so call before visiting.
How can I verify Kien Phuc Tran, MD's license?
NPPES lists California license number A88769, 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 Kien Phuc Tran, MD prescribe under Medicare Part D?
In 2024, Kien Phuc Tran, MD had 14,351 Medicare Part D claims for 9,350 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Kien Phuc Tran, MD'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.