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

Zhen Wei Mei

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1265813539

Zhen Wei Mei practises Pathology in Los Angeles, California. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2015, 11 years ago. Practices with UCLA Pathology and Laboratory Medicine Group, a 68-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and Illinois.

Years since qualifying
11
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
CA, IL
In the registry since
2015
Specialties on file
3
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Practice location Address checks out

10833 Le Conte Ave # A2-179
Los Angeles, CA 90095-1447
Phone: (310) 267-3561
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 757 Westwood Plz, Los Angeles, CA 90095-1447 — (310) 267-1900
  • 5841 S Maryland Ave, Chicago, IL 60637-1447 — (773) 834-8376

Specialties & licences

Clinical Pathology Physician (primary) Taxonomy 207ZC0006X · Licence A157677 (CA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 125066378 (IL)
Blood Banking & Transfusion Medicine Physician Taxonomy 207ZB0001X · Licence A157677 (CA)

Record details

NPI number1265813539
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 12, 2015
Last updated in NPPESDecember 16, 2020
Certification dateDecember 16, 2020

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2015 (11 years in practice)
Group practice Ucla Pathology And Laboratory Medicine Group — 68 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients82
Services billed 108 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Travel and Lodging $1,739 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $210 3 payments · 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. Those with a page here are linked.

  • Ronald Reagan Ucla Medical Center Hospital · Los Angeles, CA
  • Santa Monica - Ucla Med Ctr & Orthopaedic Hospital Hospital · Santa Monica, CA
  • Ucla West Valley Medical Center Hospital · West Hills, CA

Colleagues at UCLA Pathology and Laboratory Medicine Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 68 clinicians in the practice; 12 are shown here.

Other providers in Los Angeles