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

Brent Jacob Geffen, MD

Individual provider Otolaryngology Physician · NPI 1528562527

Brent Jacob Geffen, MD is an Otolaryngology in Simi Valley, California. Graduated from Wake Forest University School of Medicine in 2018, 8 years ago. Practices with Bass Medical Group, a 292-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Utah.

Years since qualifying
8
Trained at
Wake Forest University School of Medicine
Licensed in
CA, UT
In the registry since
2018
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

2876 Sycamore Dr
Simi Valley, CA 93065-1530
Phone: (805) 379-9646
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 50 N Medical Dr Som 3c120, Salt Lake City, UT 84132-0001 — (801) 581-8471

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 185833 (CA)
Otolaryngology Physician Taxonomy 207Y00000X · Licence 11393298-1205 (UT)

Record details

NPI number1528562527
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2018
Last updated in NPPESMay 30, 2023
Certification dateMay 30, 2023

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolWAKE FOREST UNIVERSITY SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Bass Medical Group — 292 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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