John Leach, M.D.
NPI 1013997642 · Diagnostic Radiology Physician · Columbus, OH
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Leach, M.D. is a Diagnostic Radiology Physician provider in Columbus, OH (NPI 1013997642).
Provider details
- NPI number
- 1013997642
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35086011 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,363 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) |
|---|---|---|
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 302 | $67 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 264 | $66 |
| Mri Scan of Leg Joint Without Contrast73721 | 239 | $61 |
| Mri Scan of Leg Joint Without Contrast73721 | 186 | $61 |
| Mri Scan of Arm Joint Without Contrast73221 | 142 | $61 |
| Ct Scan of Leg Without Contrast73700 | 132 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-19
- Last updated
- 2008-05-14
Frequently asked questions
- What is John Leach's NPI number?
- John Leach's National Provider Identifier (NPI) is 1013997642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Leach's specialty?
- John Leach is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Leach located?
- John Leach's practice location on file with NPPES is 3525 Olentangy River Rd, Columbus, OH 43214-3937.
- What is John Leach's phone number?
- The practice phone number listed in the NPPES registry for John Leach is (614) 340-7747.
- Does John Leach accept Medicare?
- John Leach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Leach's NPI active?
- Yes — John Leach's NPI (1013997642) is active in the NPPES registry as of the last update on 2008-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.