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

Sierra Simmons, MD

Individual provider Blood Banking & Transfusion Medicine Physician · NPI 1750726014

Sierra Simmons, MD is a Pathology in Orange, California. Graduated from University of Nevada School of Medicine in 2013, 13 years ago. Practices with Regents of the University of California, a 39-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Trained at
University of Nevada School of Medicine
Licensed in
CA
In the registry since
2013
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

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 450-3875
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Blood Banking & Transfusion Medicine Physician (primary) Taxonomy 207ZB0001X · Licence C-192196 (CA)

Record details

NPI number1750726014
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2013
Last updated in NPPESOctober 21, 2024
Certification dateOctober 21, 2024
Mailing address200 S Manchester Ave Ste 300, Orange, CA 92868-3219

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF NEVADA SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Regents Of The University Of California — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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