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

Brianna Thiessen

Individual provider Emergency Medicine Physician · NPI 1588018584

Brianna Thiessen is an Emergency Medicine in Riverside, California. Qualified in 2017, 9 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2016
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Practice location Address checks out

10800 Magnolia Ave
Riverside, CA 92505-3043
Phone: (833) 574-2273
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 20A20763 (CA)

Record details

NPI number1588018584
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedApril 16, 2016
Last updated in NPPESOctober 27, 2023
Certification dateJuly 23, 2023
Mailing address10800 Magnolia Ave, Riverside, CA 92505-3043

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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