Clark Diffendaffer, MD
NPI 1174612337 · Diagnostic Radiology Physician · Lincoln, NE
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark Diffendaffer, MD is a Diagnostic Radiology Physician provider in Lincoln, NE (NPI 1174612337).
Provider details
- NPI number
- 1174612337
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 24399 (NE)
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
3,164 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 339 | $39 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 247 | $69 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 137 | $69 |
| Mri Scan of Brain Before and After Contrast70553 | 136 | $105 |
| X-Ray of Chest, 1 View71045 | 126 | $8 |
| Mri Scan of Brain Before and After Contrast70553 | 119 |
Practice location
Mailing address
Additional practice locations (1)
- 601 E Rollins StOrlando, FL 32803-1248Phone: (407) 200-2355
Registry dates
- Enumerated
- 2006-10-12
- Last updated
- 2022-01-28
- Certified
- 2022-01-28
Frequently asked questions
- What is Clark Diffendaffer's NPI number?
- Clark Diffendaffer's National Provider Identifier (NPI) is 1174612337, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Diffendaffer's specialty?
- Clark Diffendaffer is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Clark Diffendaffer located?
- Clark Diffendaffer's practice location on file with NPPES is 7601 Pioneers Blvd, Lincoln, NE 68506-4675.
- What is Clark Diffendaffer's phone number?
- The practice phone number listed in the NPPES registry for Clark Diffendaffer is (402) 484-6677.
- Does Clark Diffendaffer accept Medicare?
- Clark Diffendaffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clark Diffendaffer's NPI active?
- Yes — Clark Diffendaffer's NPI (1174612337) is active in the NPPES registry as of the last update on 2022-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.