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

Dr. Jack Dac Bui, MD, PHD

Individual provider Clinical Pathology/Laboratory Medicine Physician · NPI 1942529821

Dr. Jack Dac Bui, MD, PHD practises Pathology in LA Jolla, California. Graduated from University of California, San Diego School of Medicine in 2001, 25 years ago. Practices with Regents of the University of California, a 2,061-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
25
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

9500 Gilman Dr University Of California Dept OF Pathology
LA Jolla, CA 92093-0612
Phone: (858) 534-3890
Fax: (858) 822-5580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence A97419 (CA)

Record details

NPI number1942529821
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedMay 18, 2010
Last updated in NPPESOctober 17, 2018

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Regents Of The University Of California — 2061 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients114
Services billed 120 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 $125 1 payment · a meal or drink at a meeting or visit, not a fee

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2061 clinicians in the practice; 12 are shown here.

Other providers in LA Jolla