John Ewonus, D.O.
NPI 1437127040 · Diagnostic Radiology Physician · Bryan, OH
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Ewonus, D.O. is a Diagnostic Radiology Physician provider in Bryan, OH (NPI 1437127040).
Provider details
- NPI number
- 1437127040
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 34.006160 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,322 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 256 | $8 |
| X-Ray of Chest, 2 Views71046 | 193 | $10 |
| Screening 3d Breast Mammography77063 | 154 | $26 |
| Screening Mammography77067 | 153 | $34 |
| X-Ray of Knee, 3 Views73562 | 139 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 121 | $37 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine |
Practice location
Mailing address
Additional practice locations (2)
- 168 S Howell StHillsdale, MI 49242-2040Phone: (517) 437-4451
- 1600 E Riverview AveNapoleon, OH 43545-9805Phone: (419) 592-4015
Registry dates
- Enumerated
- 2006-03-09
- Last updated
- 2025-04-15
- Certified
- 2025-04-15
Frequently asked questions
- What is John Ewonus's NPI number?
- John Ewonus's National Provider Identifier (NPI) is 1437127040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ewonus's specialty?
- John Ewonus is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Ewonus located?
- John Ewonus's practice location on file with NPPES is 433 W High St, Bryan, OH 43506-1690.
- What is John Ewonus's phone number?
- The practice phone number listed in the NPPES registry for John Ewonus is (419) 636-1131.
- Does John Ewonus accept Medicare?
- John Ewonus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Ewonus's NPI active?
- Yes — John Ewonus's NPI (1437127040) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.