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Hematology/Oncology

Mark R. Hancock, MD

Works at hospitals in Big Sky, MT · Bozeman, MT · Livingston, MT … · Montana, Nebraska

Summary

Mark R. Hancock, MD (Hematology/Oncology) is listed by Medicare at 5 hospitals in Big Sky, MT, Bozeman, MT and Livingston, MT and other places. NPI 1003954637. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mark R. Hancock, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
39Years since medical school (graduated 1987)
MaleGender (as listed)
Bozeman Health Deaconess HospitalGroup practice (+2 more)

Quick answers

Which hospitals does Mark R. Hancock work at?
Medicare's official clinician data lists Mark R. Hancock at 5 hospitals: Bozeman Health Big Sky Medical Center, Bozeman Health Deaconess Hospital, Livingston Healthcare, Madison Valley Medical Center and Regional West Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark R. Hancock see patients?
Medicare's clinician data lists 3 practice locations, including Big Sky, MT, Scottsbluff, NE and Bozeman, MT. Call before your visit to confirm the address.
What is Mark R. Hancock's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Mark R. Hancock accept Medicare assignment?
Yes. Medicare's clinician data says Mark R. Hancock 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.
Does Mark R. Hancock offer telehealth?
Medicare's clinician data says Mark R. Hancock offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark R. Hancock?
(406) 995-6995, as listed in official Medicare / NPI Registry data.
What is Mark R. Hancock's NPI number?
1003954637. 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 R. Hancock works

Medicare's Facility Affiliation Data lists Mark R. Hancock at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mark R. Hancock is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mark R. Hancock as a member of these groups (CMS data updated 2026-10-02).

  • Bozeman Health Deaconess Hospital320 clinicians in the group
  • Regional West Physicians Clinic138 clinicians in the group
  • Bozeman Health Big Sky Medical Center LLC21 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Montana →

Other hematologist-oncologists in Montana

Clinicians with the same Medicare primary specialty in Montana — not a recommendation.

All hematologist-oncologists in Montana →

Clinician information

CredentialMD
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1003954637
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians