Quick answers
- Which hospitals does John J. Ragan work at?
- Medicare's official clinician data lists John J. Ragan at 5 hospitals: Essentia Health, Essentia Health Fosston, Essentia Health St Joseph's Medical Center, Essentia Health St Marys - Detroit Lakes and Linton Hospital - CAH. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Ragan see patients?
- Medicare's clinician data lists 8 practice locations, including Detroit Lakes, MN, Ada, MN and Jamestown, ND. Call before your visit to confirm the address.
- What is John J. Ragan's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John J. Ragan accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Ragan 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 John J. Ragan offer telehealth?
- Medicare's clinician data says John J. Ragan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John J. Ragan?
- (218) 847-0825, as listed in official Medicare / NPI Registry data.
- What is John J. Ragan's NPI number?
- 1831122738. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John J. Ragan works
Medicare's Facility Affiliation Data lists John J. Ragan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Essentia HealthFargo, ND · Acute Care Hospital · CCN 350070
- Essentia Health FosstonFosston, MN · Critical Access Hospital · CCN 241357
- Essentia Health St Joseph's Medical CenterBrainerd, MN · Acute Care Hospital · CCN 240075
- Essentia Health St Marys - Detroit LakesDetroit Lakes, MN · Acute Care Hospital · CCN 240101
- Linton Hospital - CAHLinton, ND · Critical Access Hospital · CCN 351328
Practice locations
Addresses where John J. Ragan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1027 Washington AveDetroit Lakes, MN 56501
- 1027 Washington Ave, Attn Business Office ManagerDetroit Lakes, MN 56501
- 114 Frazee St EDetroit Lakes, MN 56501 (218) 847‑0825
- 201 9th St WAda, MN 56510
- 201 9th St W, 2 Benedictine Living Community of AdaAda, MN 56510 (218) 784‑5500
Group practices
Medicare enrollment lists John J. Ragan as a member of these groups (CMS data updated 2026-10-02).
- Innovis Health LLC559 clinicians in the group
- St Marys Regional Health Center190 clinicians in the group
- Bridges Medical Center22 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →
Other cardiologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831122738 |
| 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