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

Jeffrey K Feinfield, MD

Individual provider Specialist · NPI 1740372028

Jeffrey K Feinfield, MD is an Otolaryngology in Thousand Oaks, California. Graduated from University of Southern California Keck School of Medicine in 1998, 28 years ago. Practices with Jeffrey Feinfield, MD Inc, a 4-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
28
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2006
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

555 Marin St Ste 100
Thousand Oaks, CA 91360-4102
Phone: (805) 494-4797
Fax: (805) 494-4810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence A71991 (CA)

Record details

NPI number1740372028
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESApril 27, 2017
Mailing address555 Marin St, Ste 100, Thousand Oaks, CA 91360-4102

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Also practisesPLASTIC AND RECONSTRUCTIVE SURGERY
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Jeffrey Feinfield, M.D. Inc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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