Quick answers
- Which hospitals does Edwin T. McGroarty work at?
- Medicare's official clinician data lists Edwin T. McGroarty at 1 hospital: McKenzie County Healthcare Systems Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Edwin T. McGroarty see patients?
- Medicare's clinician data lists 9 practice locations, including Avalon, CA, Williston, ND and Watford City, ND. Call before your visit to confirm the address.
- What is Edwin T. McGroarty's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Edwin T. McGroarty accept Medicare assignment?
- Medicare's clinician data says Edwin T. McGroarty may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Edwin T. McGroarty?
- (310) 510-0700, as listed in official Medicare / NPI Registry data.
- What is Edwin T. McGroarty's NPI number?
- 1891767299. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Edwin T. McGroarty works
Medicare's Facility Affiliation Data lists Edwin T. McGroarty at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- McKenzie County Healthcare Systems IncWatford City, ND · Critical Access Hospital · CCN 351302
Practice locations
Addresses where Edwin T. McGroarty is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 100 Falls Canyon RdAvalon, CA 90704 (310) 510‑0700
- 1542 16th St WWilliston, ND 58801 (701) 577‑6337
- 1542 16th St W, Suite 300Williston, ND 58801 (701) 577‑6337
- 3 4th St EWilliston, ND 58801 (701) 577‑6337
- 3 4th St E, Suite 2Williston, ND 58801 (701) 577‑6337
Group practices
Medicare enrollment lists Edwin T. McGroarty as a member of these groups (CMS data updated 2026-10-02).
- McKenzie County Healthcare Systems Inc66 clinicians in the group
- Avalon Medical Development Corporation30 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Avalon
Clinicians with the same Medicare primary specialty in Avalon, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Cincinnati College Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1891767299 |
| 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