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

Zackary Chancer, MD, MS

Individual provider Anesthesiology Physician · NPI 1285976357

Zackary Chancer, MD, MS is registered under Critical Care (Intensivists) in Los Angeles, California. Graduated from University of Hawaii John A. Burns School of Medicine in 2013, 13 years ago. Practices with Lancaster General Hospital, a 518-clinician group and accepts Medicare assignment. Licensed in California and Maryland.

Years since qualifying
13
Trained at
University of Hawaii John A. Burns School of Medicine
Licensed in
CA, MD
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.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

1500 San Pablo St
Los Angeles, CA 90033-5313
Phone: (323) 442-7400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A170446 (CA)
Anesthesiology Physician Taxonomy 207L00000X · Licence D83587 (MD)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence D83587 (MD)

Record details

NPI number1285976357
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MS
Sole proprietorYes
NPI enumeratedMarch 26, 2013
Last updated in NPPESMarch 23, 2021
Certification dateMarch 23, 2021

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesANESTHESIOLOGY
Medical schoolUNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Lancaster General Hospital — 518 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 patients178
Services billed 272 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 $157 2 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.

Colleagues at Lancaster General Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 518 clinicians in the practice; 12 are shown here.

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