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

Karl Marzec, MD

Individual provider Emergency Medicine Physician · NPI 1447520473

Karl Marzec, MD practises Emergency Medicine in San Diego, California. Graduated from University of Southern California Keck School of Medicine in 2010, 16 years ago. Practices with Scripps Health, a 1,446-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
16
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2012
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

7901 Frost St
San Diego, CA 92123-2701
Phone: (858) 939-3400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A119448 (CA)

Record details

NPI number1447520473
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 6, 2012
Last updated in NPPESMarch 6, 2023
Certification dateMarch 6, 2023

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Scripps Health — 1446 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients351
Services billed 646 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Scripps Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1446 clinicians in the practice; 12 are shown here.

Other providers in San Diego