John Willis, MD
NPI 1326095670 · Diagnostic Radiology Physician · Mount Vernon, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Willis, MD is a Diagnostic Radiology Physician provider in Mount Vernon, IL (NPI 1326095670).
Provider details
- NPI number
- 1326095670
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 36108723 (IL)
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
3,645 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) |
|---|---|---|
| Screening Mammography77067 | 494 | $35 |
| Screening 3d Breast Mammography77063 | 493 | $27 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 272 | $82 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 247 | $79 |
| Ct Scan Head Or Brain Without Contrast70450 | 183 | $38 |
| X-Ray of Chest, 1 View71045 | 130 | $8 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-30
- Last updated
- 2021-03-15
- Certified
- 2021-03-15
Frequently asked questions
- What is John Willis's NPI number?
- John Willis's National Provider Identifier (NPI) is 1326095670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Willis's specialty?
- John Willis is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Willis located?
- John Willis's practice location on file with NPPES is 1 Good Samaritan Way, Mount Vernon, IL 62864-2402.
- What is John Willis's phone number?
- The practice phone number listed in the NPPES registry for John Willis is (618) 242-4600.
- Does John Willis accept Medicare?
- John Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Willis's NPI active?
- Yes — John Willis's NPI (1326095670) is active in the NPPES registry as of the last update on 2021-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.