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

Dr. Alexander Antonios Theologis, MD

Individual provider Orthopaedic Surgery of the Spine Physician · NPI 1649565771

Dr. Alexander Antonios Theologis, MD is an Orthopedic Surgery in San Francisco, California. Qualified in 2011, 15 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and Missouri.

Years since qualifying
15
Licensed in
CA, MO
In the registry since
2011
Specialties on file
2
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 MU320
San Francisco, CA 94143
Phone: (415) 353-8203
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 500 Parnassus Ave, San Francisco, CA 94143 — (415) 353-8203

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence A124464 (CA)
Orthopaedic Surgery of the Spine Physician Taxonomy 207XS0117X · Licence 2017010211 (MO)

Record details

NPI number1649565771
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2011
Last updated in NPPESMarch 4, 2019

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Ucsf Medical Group Business Services — 1531 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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