Sara Tran Hong Chau, M.D.
Family Medicine Physician · Costa Mesa, CA
Sara Tran Hong Chau, M.D. is a family medicine physician with a practice address in Costa Mesa, California, and NPI 1619194107, issued on Apr 19, 2007. Check the license (California A85587, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sara Tran Hong Chau
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A85587 CA
Self-reported in NPPES; status is on the state search - Practice location
- 660 Baker St Ste A102, Costa Mesa, CA 92626
- Phone
- (714) 668-2505
- Enumerated
- Apr 19, 2007
- Record last updated
- Nov 19, 2025
- Fax
- (714) 668-2515
- Medicare enrollment
- Enrolled (PECOS I20050228001025); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 660 Baker St Ste A102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marenna Cowan, FNP-CFamily Nurse Practitioner1063078806
- Christina Demarinis, NPFamily Nurse Practitioner1861094815
- Rebecca Orozco, FNP-CFamily Nurse Practitioner1801612973
- Jessica Santos, PAPhysician Assistant1043042096
- Cassandra Tom, NPFamily Nurse Practitioner1609325430
- Sierra Wilson, DNPFamily Nurse Practitioner1386353746
Verify Sara Tran Hong Chau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85587Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
92 Medicare Part D claims for 69 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Cephalexin11 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: $115.48
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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 2 group practices
- Coastal Family Medicine IncIrvine, CA
- Memorialcare Medical FoundationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara Tran Hong Chau among 17,133 family medicine physician records in California
Sara Tran Hong Chau, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2002 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 family medicine physician records list a practice address in Costa Mesa
They are 56 of the 4,286 NPPES records with a practice address in Costa Mesa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Costa Mesa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ronald Bangsil, MDCosta Mesa, CA 926261043261654
- David Chun, MDCosta Mesa, CA 926261932199213
- James Ferguson, DOCosta Mesa, CA 926261689625212
- Sienna Go, M.D.Costa Mesa, CA 926261295759298
- Guy Gottschalk, M.D.Costa Mesa, CA 926261235228750
- Joseph Horejsi, MDCosta Mesa, CA 926261295726347
- Michael Kao, M.D.Costa Mesa, CA 926261316953805
- Ena Kariya, MDCosta Mesa, CA 926261588655658
Common questions
What is Sara Tran Hong Chau, M.D.'s NPI number?
Sara Tran Hong Chau, M.D.'s National Provider Identifier (NPI) is 1619194107, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sara Tran Hong Chau, M.D. located?
The NPPES record lists a practice address at 660 Baker St Ste A102, Costa Mesa, CA, 92626. Phone: (714) 668-2505. Providers update this record themselves, so call before visiting.
How can I verify Sara Tran Hong Chau, M.D.'s license?
NPPES lists California license number A85587, 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 Sara Tran Hong Chau, M.D. prescribe under Medicare Part D?
In 2024, Sara Tran Hong Chau, M.D. had 92 Medicare Part D claims for 69 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.