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

Dr. Karen Lee Oppenheimer, MD

Individual provider Internal Medicine Physician · NPI 1164430443

Dr. Karen Lee Oppenheimer, MD is an Internal Medicine in Torrance, California. Graduated from Icahn School of Medicine at Mount Sinai in 1996, 30 years ago. Practices with Kaiser Foundation Health Plan of the Northwest, a 1,811-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California and Oregon.

Years since qualifying
30
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA, OR
In the registry since
2006
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

20790 Madrona Ave
Torrance, CA 90503-3777
Phone: (310) 312-2831
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence AO65288 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD25727 (OR)

Record details

NPI number1164430443
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 3, 2006
Last updated in NPPESDecember 1, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1996 (30 years in practice)
Group practice Kaiser Foundation Health Plan Of The Northwest — 1811 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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