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

John Charles Merillat, MD

Individual provider Clinical Cardiac Electrophysiology Physician · NPI 1346280229

John Charles Merillat, MD is a Cardiac Electrophysiology in Modesto, California. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 1981, 45 years ago. Practices with Valley Heart Associates Medical Group Inc, a 10-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
45
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
CA
In the registry since
2006
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

1540 Florida Ave Ste 100
Modesto, CA 95350-4430
Phone: (209) 577-5557
Fax: (209) 579-7246
Show map & directions

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

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence G67546 (CA)
Clinical Cardiac Electrophysiology Physician Taxonomy 207RC0001X · Licence G67546 (CA)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence G67546 (CA)

Record details

NPI number1346280229
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESJanuary 15, 2021
Certification dateJanuary 15, 2021

Medicare enrollment

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

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 1981 (45 years in practice)
Group practice Valley Heart Associates Medical Group Inc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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