Quick answers
- Which hospitals does Mark Chou work at?
- Medicare's official clinician data lists Mark Chou at 5 hospitals: Good Samaritan Medical Center LLC, Intermountain Health Platte Valley Hospital, Intermountain Health St. Mary's Regional Hospital, Northern Light Maine Coast Hospital and Saint Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Chou see patients?
- Medicare's clinician data lists 3 practice locations, including Grand Junction, CO. Call before your visit to confirm the address.
- What is Mark Chou's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Mark Chou accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Chou accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark Chou?
- (970) 298-5864, as listed in official Medicare / NPI Registry data.
- What is Mark Chou's NPI number?
- 1578854543. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Chou works
Medicare's Facility Affiliation Data lists Mark Chou at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Medical Center LLCLafayette, CO · Acute Care Hospital · CCN 060116
- Intermountain Health Platte Valley HospitalBrighton, CO · Acute Care Hospital · CCN 060004
- Intermountain Health St. Mary's Regional HospitalGrand Junction, CO · Acute Care Hospital · CCN 060023
- Northern Light Maine Coast HospitalEllsworth, ME · Acute Care Hospital · CCN 200050
- Saint Joseph HospitalDenver, CO · Acute Care Hospital · CCN 060028
Practice locations
Addresses where Mark Chou is enrolled with Medicare (CMS data updated 2026-10-02).
- 1050 Wellington Ave, Imh Wellington Lung and Sleep ClinicGrand Junction, CO 81501 (970) 298‑5864
- 2635 N 7th StGrand Junction, CO 81501
- 360 W Park Dr, Intermountain Health Heart and Vascular WesGrand Junction, CO 81505 (970) 298‑3050
Group practices
Medicare enrollment lists Mark Chou as a member of this group (CMS data updated 2026-10-02).
- Intermountain Medical Group Grand Junction, LLC296 clinicians in the group
Specialties
Other internal medicine doctors in Grand Junction
Clinicians with the same Medicare primary specialty in Grand Junction, CO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578854543 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians