Quick answers
- Which hospitals does Nathan Mark work at?
- Medicare's official clinician data lists Nathan Mark at 1 hospital: Mercy Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nathan Mark see patients?
- Medicare's clinician data lists 1 practice location in Durango, CO. Call before your visit to confirm the address.
- What is Nathan Mark's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Nathan Mark accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan Mark 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 Nathan Mark?
- (970) 761-3200, as listed in official Medicare / NPI Registry data.
- What is Nathan Mark's NPI number?
- 1902973993. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nathan Mark works
Medicare's Facility Affiliation Data lists Nathan Mark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Regional Medical CenterDurango, CO · Acute Care Hospital · CCN 060013
Practice locations
Addresses where Nathan Mark is enrolled with Medicare (CMS data updated 2026-10-02).
- 1010 Three Springs BlvdDurango, CO 81301 (970) 761‑3200
Group practices
Medicare enrollment lists Nathan Mark as a member of this group (CMS data updated 2026-10-02).
- Catholic Health Initiatives Colorado1,225 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Durango
Clinicians with the same Medicare primary specialty in Durango, CO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902973993 |
| 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