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

Marilyn Calderon, MD

Individual provider Family Medicine Physician · NPI 1144486713

Marilyn Calderon, MD is registered under Family Practice in National City, California. Graduated from University of California, San Francisco School of Medicine in 2007, 19 years ago. Practices with Choctaw Nation of Oklahoma, a 270-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
19
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA
In the registry since
2008
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

2400 E 8th St
National City, CA 91950 Not confirmed with CMS for 10 years — call before visiting
Phone: (619) 662-4100
Fax: (619) 259-2811
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A107518 (CA)

Record details

NPI number1144486713
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 4, 2008
Last updated in NPPESJuly 25, 2016

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Choctaw Nation Of Oklahoma — 270 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 skin lesions 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 patients173
Services billed 499 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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. Those with a page here are linked.

Colleagues at Choctaw Nation of Oklahoma

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 270 clinicians in the practice; 12 are shown here.

Other providers in National City