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

Dr. Amy C Trewella, MD

Individual provider Military Health Care Provider · NPI 1376513119

Dr. Amy C Trewella, MD is a Family Practice in San Marcos, California. Graduated from Creighton University School of Medicine in 2005, 21 years ago. Practices with Arch Health Partners Inc, a 141-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
21
Trained at
Creighton University School of Medicine
Licensed in
CA
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.

See every abbreviation used in this directory →

Practice location Address checks out

277 Rancheros Dr Ste 100
San Marcos, CA 92069-2959
Phone: (760) 291-6700
Fax: (760) 471-0513
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A99176 (CA)
Military Health Care Provider Taxonomy 171000000X

Record details

NPI number1376513119
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 24, 2006
Last updated in NPPESAugust 9, 2012

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Arch Health Partners Inc — 141 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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