Quick answers
- Which hospitals does Mark Sehgal work at?
- Medicare's official clinician data lists Mark Sehgal at 1 hospital: Choctaw Nation Health Services Authority. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Sehgal see patients?
- Medicare's clinician data lists 3 practice locations, including Talihina, OK and Durant, OK. Call before your visit to confirm the address.
- What is Mark Sehgal's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Mark Sehgal accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Sehgal 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 Sehgal?
- (539) 316-6391, as listed in official Medicare / NPI Registry data.
- What is Mark Sehgal's NPI number?
- 1801888441. 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 Sehgal works
Medicare's Facility Affiliation Data lists Mark Sehgal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Choctaw Nation Health Services AuthorityTalihina, OK · Acute Care Hospital · CCN 370172
Practice locations
Addresses where Mark Sehgal is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Choctaw WayTalihina, OK 74571 (539) 316‑6391
- 1801 Chukka HinaDurant, OK 74701 (539) 316‑6391
- One Choctaw WayTalihina, OK 74571
Group practices
Medicare enrollment lists Mark Sehgal as a member of this group (CMS data updated 2026-10-02).
- Choctaw Nation of Oklahoma267 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Oklahoma
Clinicians with the same Medicare primary specialty in Oklahoma — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801888441 |
| 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