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

Monica Tsai

Individual provider Internal Medicine Physician · NPI 1598176497

Monica Tsai is an Internal Medicine in Orange, California. Graduated from University of California, Geffen School of Medicine in 2014, 12 years ago. Practices with Uc Regents, a 306-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
12
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2014
Specialties on file
2
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Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-8888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1245 16th St Ste 303, Santa Monica, CA 90404-1265 — (310) 481-4646
  • 3500 Lomita Blvd Ste 300, Torrance, CA 90505-5038 — (310) 257-0028

Specialties & licences

Allergy & Immunology (Internal Medicine) Physician (primary) Taxonomy 207RA0201X · Licence A142506 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A142506 (CA)

Record details

NPI number1598176497
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 13, 2014
Last updated in NPPESJanuary 16, 2026
Certification dateJanuary 16, 2026
Mailing address5767 W Century Blvd Ste 400, Los Angeles, CA 90045-5631

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Uc Regents — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Orange