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

Mark Tarek Guirguis, MD

Individual provider Anesthesiology Physician · NPI 1164009973

Mark Tarek Guirguis, MD is an Anesthesiology in Los Angeles, California. Qualified in 2021, 5 years ago. Practices with Regents of the University of California, a 234-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
5
Licensed in
CA
In the registry since
2021
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

757 Westwood Plz Ste 3325
Los Angeles, CA 90095-7419
Phone: (310) 267-8626
Fax: (310) 267-8679
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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 A197540 (CA)

Record details

NPI number1164009973
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 26, 2021
Last updated in NPPESOctober 22, 2025
Certification dateOctober 22, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Regents Of The University Of California — 234 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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