Quick answers
- Which hospitals does Nicholas Twidale work at?
- Medicare's official clinician data lists Nicholas Twidale at 2 hospitals: Great Plains Regional Medical Center and Oklahoma Heart Hospital, LLC. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nicholas Twidale see patients?
- Medicare's clinician data lists 1 practice location in Elk City, OK. Call before your visit to confirm the address.
- What is Nicholas Twidale's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Nicholas Twidale accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas Twidale 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 Nicholas Twidale?
- (580) 225-6220, as listed in official Medicare / NPI Registry data.
- What is Nicholas Twidale's NPI number?
- 1104886209. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicholas Twidale works
Medicare's Facility Affiliation Data lists Nicholas Twidale at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Great Plains Regional Medical CenterElk City, OK · Acute Care Hospital · CCN 370019
- Oklahoma Heart Hospital, LLCOklahoma City, OK · Acute Care Hospital · CCN 370215
Practice locations
Addresses where Nicholas Twidale is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 W Ave AElk City, OK 73644 (580) 225‑6220
Group practices
Medicare enrollment lists Nicholas Twidale as a member of this group (CMS data updated 2026-10-02).
- Ohh Physicians LLC133 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Oklahoma →
Other cardiologists in Oklahoma
Clinicians with the same Medicare primary specialty in Oklahoma — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104886209 |
| 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