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

Theresa Gertrude Zogakis, MD

Individual provider Surgery Physician · NPI 1255394938

Theresa Gertrude Zogakis, MD practises General Surgery in Marysville, California. Graduated from Washington University School of Medicine in 1995, 31 years ago. Practices with Acute Care Surgery Medical Group Inc, a 202-clinician group and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
31
Trained at
Washington University School of Medicine
Licensed in
CA, TX
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

414 G St Ste 120
Marysville, CA 95901-5670
Phone: (530) 749-4304
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence M2510 (TX)
Surgery Physician Taxonomy 208600000X · Licence A82403 (CA)

Record details

NPI number1255394938
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2006
Last updated in NPPESJanuary 24, 2023
Certification dateJanuary 24, 2023

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Acute Care Surgery Medical Group Inc — 202 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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.

Colonoscopy 1–10 times
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 patients142
Services billed 182 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.

  • Adventist Health And Rideout Hospital · Marysville, CA

Colleagues at Acute Care Surgery Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 202 clinicians in the practice; 12 are shown here.

Other providers in Marysville