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

Mark Chou, DO

Individual provider Cardiovascular Disease Physician · NPI 1578854543

Mark Chou, DO is an Internal Medicine in Loma Linda, California. Qualified in 2011, 15 years ago. Practices with Intermountain Medical Group Grand Junction, LLC, a 299-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
15
Licensed in
CO
In the registry since
2011
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

11234 Anderson Street Gme Ofc Csp 21005
Loma Linda, CA 92354-2804
Phone: (909) 558-7263
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence DR.0064783 (CO)

Record details

NPI number1578854543
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 26, 2011
Last updated in NPPESAugust 4, 2020
Certification dateAugust 4, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Intermountain Medical Group Grand Junction, Llc — 299 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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