Diana Tran-Kim, D.O.
Obstetrics & Gynecology Physician · Fountain Vly, CA
Diana Tran-Kim, D.O. is an obstetrics & gynecology physician with a practice address in Fountain Vly, California, and NPI 1366867327, issued on Feb 27, 2014. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diana Tran-Kim
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 275009 NY
Self-reported in NPPES; status is on the state search - Practice location
- 11160 Warner Ave Ste 301, Fountain Vly, CA 92708
- Phone
- (714) 210-5665
- Enumerated
- Feb 27, 2014
- Record last updated
- Dec 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (714) 210-2031
- Medicare enrollment
- Enrolled (PECOS I20211021000643); may accept Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2009
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Verify Diana Tran-Kim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
84 Medicare Part D claims for 29 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Medroxyprogesterone Acetate12 claims
- Metronidazole12 claims
- Estradiol11 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.
Industry payments in 2024: $394.41
19 payments; by number, the most common kind was food and beverage; the largest payer was Aspira Women's Health 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.
Diana Tran-Kim among 5,088 obstetrics & gynecology physician records in California
Diana Tran-Kim, D.O. 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 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2009 · median 2004 among the 2,700 with a school on file
- Record last updated2020 · 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.
All 5,088 in California → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Gerardo Bustillo, M.D.Fountain Valley, CA 927081972631786
- Cynthia Cork, M.D.Fountain Valley, CA 927081134229602
- Ellen Fraser, M.D.Fountain Valley, CA 927081275598443
- Jamie Kim, M.D.Fountain Valley, CA 927081225187388
- Carol Levi, M.D.Fountain Valley, CA 927081497706907
- Minal Mehta, M.D.Fountain Valley, CA 927081780787580
- Sunita Moola, MDFountain Valley, CA 927081770770695
- Krystal Pham, MDFountain Valley, CA 927081710001763
Common questions
What is Diana Tran-Kim, D.O.'s NPI number?
Diana Tran-Kim, D.O.'s National Provider Identifier (NPI) is 1366867327, issued on Feb 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Diana Tran-Kim, D.O. located?
The NPPES record lists a practice address at 11160 Warner Ave Ste 301, Fountain Vly, CA, 92708. Phone: (714) 210-5665. Providers update this record themselves, so call before visiting.
How can I verify Diana Tran-Kim, D.O.'s license?
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 Diana Tran-Kim, D.O. prescribe under Medicare Part D?
In 2024, Diana Tran-Kim, D.O. had 84 Medicare Part D claims for 29 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.