Diana Phuongthao Tran
Physician Assistant · Santa Ana, CA
Diana Phuongthao Tran is a physician assistant with a practice address in Santa Ana, California, and NPI 1154057420, issued on Jul 28, 2022. Check the license (California PA61859, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Phuongthao Tran
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA61859 CA
Self-reported in NPPES; status is on the state search - Practice location
- 999 N Tustin Ave Ste 216, Santa Ana, CA 92705
- Phone
- (714) 545-5550
- Enumerated
- Jul 28, 2022
- Record last updated
- Feb 25, 2026
- Medicare enrollment
- Enrolled (PECOS I20251117003462); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2022
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 999 N Tustin Ave Ste 216
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer Desby, PA-CPhysician Assistant1740392026
- Tatiana Gheybi, PA-CPhysician Assistant1487380275
- Erin Hurley, PA-CPsychiatric/Mental Health Clinical Nurse Specialist1649760901
Verify Diana Phuongthao Tran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA61859Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $26.26
1 payment: food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- Pacific Neuropsychiatric Specialists IncSanta Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Phuongthao Tran among 14,451 physician assistant records in California
Diana Phuongthao Tran is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.
- NPI issued2022 · 73% of these records are older, 20% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2022 · median 2018 among the 7,214 with a school on file
- Record last updated2026 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
124 physician assistant records list a practice address in Santa Ana
They are 124 of the 8,904 NPPES records with a practice address in Santa Ana, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Santa Ana → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Anne Castle, P.A.Santa Ana, CA 927051669424206
- Robert Cha, PASanta Ana, CA 927051710098165
- Tracy Dau, PASanta Ana, CA 927051104855105
- Jennifer Desby, PA-CSanta Ana, CA 927051740392026
- Carie Ellison, PA-CSanta Ana, CA 927051447496906
- Theresa Henry, P.A-CSanta Ana, CA 927051942316757
- Alysha Henry-Johnson, PA-CSanta Ana, CA 927051659519601
- Bonnie Huckaby, MPAS, PA-CSanta Ana, CA 927051932109204
Common questions
What is Diana Phuongthao Tran's NPI number?
Diana Phuongthao Tran's National Provider Identifier (NPI) is 1154057420, issued on Jul 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Diana Phuongthao Tran located?
The NPPES record lists a practice address at 999 N Tustin Ave Ste 216, Santa Ana, CA, 92705. Phone: (714) 545-5550. Providers update this record themselves, so call before visiting.
How can I verify Diana Phuongthao Tran's license?
NPPES lists California license number PA61859, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.