Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Abel Zeiger, MD

Individual provider Internal Medicine Physician · NPI 1154769933

Dr. William Abel Zeiger, MD practises Neurology in Los Angeles, California. Graduated from University of Chicago, Pritzker School of Medicine in 2013, 13 years ago. Practices with The Regents of the University of California, a 101-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and Illinois.

Years since qualifying
13
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
CA, IL
In the registry since
2013
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

300 Medical Plz Ste B200
Los Angeles, CA 90095-0006
Phone: (310) 794-1195
Fax: (310) 206-0987
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 601 N Caroline St, Baltimore, MD 21287-0006 — (410) 502-0817

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence A139994 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125063209 (IL)
Neurology Physician Taxonomy 2084N0400X · Licence 125063209 (IL)

Record details

NPI number1154769933
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 13, 2013
Last updated in NPPESSeptember 8, 2020
Certification dateSeptember 8, 2020

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice The Regents Of The University Of California — 101 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 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 patients91
Services billed 372 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 $23 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. Those with a page here are linked.

Colleagues at The Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 101 clinicians in the practice; 12 are shown here.

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