John Sheppard, D.O.
NPI 1821148743 · Diagnostic Radiology Physician · Nashua, NH
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sheppard, D.O. is a Diagnostic Radiology Physician provider in Nashua, NH (NPI 1821148743).
Provider details
- NPI number
- 1821148743
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OS9316 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
5,134 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 | 1,135 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 579 | $38 |
| Mri Scan of Brain Without Contrast70551 | 309 | $68 |
| Mri Scan of Brain Before and After Contrast70553 | 270 | $105 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 206 | $83 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 179 |
Practice location
Mailing address
Additional practice locations (1)
- 1223 Gateway DrMelbourne, FL 32901-2607Phone: (321) 549-0677Fax: (321) 722-2432
Registry dates
- Enumerated
- 2007-01-11
- Last updated
- 2021-08-18
- Certified
- 2021-08-18
Frequently asked questions
- What is John Sheppard's NPI number?
- John Sheppard's National Provider Identifier (NPI) is 1821148743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sheppard's specialty?
- John Sheppard is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Sheppard located?
- John Sheppard's practice location on file with NPPES is 8 Prospect St, Nashua, NH 03060.
- What is John Sheppard's phone number?
- The practice phone number listed in the NPPES registry for John Sheppard is (603) 577-3377.
- Does John Sheppard accept Medicare?
- John Sheppard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sheppard's NPI active?
- Yes — John Sheppard's NPI (1821148743) is active in the NPPES registry as of the last update on 2021-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.