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

Orestes Mavrothalassitis, MD

Individual provider Anesthesiology Physician · NPI 1265937205

Orestes Mavrothalassitis, MD is an Anesthesiology in San Francisco, California. Graduated from University of Maryland School of Medicine in 2018, 8 years ago. Practices with University Anesthesia Medical Group, a 404-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
8
Trained at
University of Maryland School of Medicine
Licensed in
CA
In the registry since
2018
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

500 Parnassus Ave
San Francisco, CA 94143-2203
Phone: (415) 476-4562
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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 A166612 (CA)

Record details

NPI number1265937205
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2018
Last updated in NPPESSeptember 12, 2024
Certification dateSeptember 12, 2024

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice University Anesthesia Medical Group — 404 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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