Quick answers
- Which hospitals does John P. Waldo work at?
- Medicare's official clinician data lists John P. Waldo at 5 hospitals: HMHP St Elizabeth Boardman Health Center, Mercy Regional Medical Center, MH St Elizabeth Youngstown Hospital, MH St Joseph Warren Hospital and Southeastern Ohio Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John P. Waldo see patients?
- Medicare's clinician data lists 2 practice locations, including Gulf Shores, AL and Warren, OH. Call before your visit to confirm the address.
- What is John P. Waldo's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John P. Waldo accept Medicare assignment?
- Yes. Medicare's clinician data says John P. Waldo 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 John P. Waldo?
- (888) 271-3826, as listed in official Medicare / NPI Registry data.
- What is John P. Waldo's NPI number?
- 1861499832. 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 P. Waldo works
Medicare's Facility Affiliation Data lists John P. Waldo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HMHP St Elizabeth Boardman Health CenterBoardman, OH · Acute Care Hospital · CCN 360276
- Mercy Regional Medical CenterLorain, OH · Acute Care Hospital · CCN 360172
- MH St Elizabeth Youngstown HospitalYoungstown, OH · Acute Care Hospital · CCN 360064
- MH St Joseph Warren HospitalWarren, OH · Acute Care Hospital · CCN 360161
- Southeastern Ohio Regional Medical CenterCambridge, OH · Acute Care Hospital · CCN 360203
Practice locations
Addresses where John P. Waldo is enrolled with Medicare (CMS data updated 2026-10-02).
- 1358 Holland StGulf Shores, AL 36542 (888) 271‑3826
- 1932 Niles Cortland Rd NE, Suite XWarren, OH 44484 (330) 306‑5371
Group practices
Medicare enrollment lists John P. Waldo as a member of these groups (CMS data updated 2026-10-02).
- Mercy Health Physicians Youngstown Specialty Care LLC472 clinicians in the group
- Columbus Radiology Corp292 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Alabama
Clinicians with the same Medicare primary specialty in Alabama — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Kansas City, School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861499832 |
| 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