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

Alexander James Geyer, MD

Individual provider Family Medicine Physician · NPI 1053775684

Alexander James Geyer, MD is a Family Practice in Corona, California. Graduated from University of Arizona College of Medicine in 2012, 14 years ago. Practices with Riverside Medical Clinic Inc, a 174-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
14
Trained at
University of Arizona College of Medicine
Licensed in
CA
In the registry since
2016
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

21634 Retreat Pkwy
Corona, CA 92883-6100
Phone: (951) 493-6921
Fax: (951) 826-8157
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 757 Westwood Plz, Los Angeles, CA 90095-7419 — (310) 319-4711

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A154572 (CA)

Record details

NPI number1053775684
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 10, 2016
Last updated in NPPESApril 14, 2025
Certification dateApril 14, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Riverside Medical Clinic Inc — 174 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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