Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Thinh Chau, MD

Individual provider Dermatology Physician · NPI 1811448251

Thinh Chau, MD practises Dermatology in Los Alamitos, California. Graduated from University of California, Davis School of Medicine in 2019, 7 years ago. Practices with J Robert West MD Inc, a 138-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and Rhode Island.

Years since qualifying
7
Trained at
University of California, Davis School of Medicine
Licensed in
CA, RI
In the registry since
2016
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4281 Katella Ave Ste 220
Los Alamitos, CA 90720-6506
Phone: (562) 252-0173
Fax: (949) 783-2845
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 7601 Stoneridge Dr, Pleasanton, CA 94588-4501 — (925) 847-5090
  • 593 Eddy St, Providence, RI 02903-4923 — (401) 444-7959

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence A187393 (CA)
Dermatology Physician Taxonomy 207N00000X · Licence 187393 (CA)
Dermatology Physician Taxonomy 207N00000X · Licence LP04899 (RI)

Record details

NPI number1811448251
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 20, 2016
Last updated in NPPESAugust 27, 2024
Certification dateAugust 27, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDERMATOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice J Robert West Md Inc — 138 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 173 times · 79th percentile
Skin biopsy 106 times · 76th percentile
Melanoma (skin cancer) excision 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients20
Services billed 77 a service is one billed item, such as a visit, a test or a procedure
Average patient age64

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $5,813 181 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $1,786 1 payment
Education $172 2 payments · educational material or training, not a fee
Travel and Lodging $63 1 payment · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at J Robert West MD Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 138 clinicians in the practice; 12 are shown here.

Other providers in Los Alamitos