Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Catherine E. Lewis, MD

Individual provider Surgical Critical Care Physician · NPI 1215165857

Dr. Catherine E. Lewis, MD practises General Surgery in Los Angeles, California. Graduated from University of Michigan Medical School in 2005, 21 years ago. Practices with UCLA Associated General Surgeons, a 46-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
21
Trained at
University of Michigan Medical School
Licensed in
CA
In the registry since
2009
Specialties on file
3
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

10833 Le Conte Ave # 72-215
Los Angeles, CA 90095-1437
Phone: (310) 794-1803
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 14445 Olive View Dr, Sylmar, CA 91342-1437 — (818) 364-3194

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A100217 (CA)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence A100217 (CA)
Trauma Surgery Physician Taxonomy 2086S0127X · Licence A100217 (CA)

Record details

NPI number1215165857
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 22, 2009
Last updated in NPPESDecember 26, 2019
Certification dateDecember 26, 2019

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2005 (21 years in practice)
Group practice Ucla Associated General Surgeons — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients189
Services billed 388 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at UCLA Associated General Surgeons

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 46 clinicians in the practice; 12 are shown here.

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