Physician Profile
Unclaimed ProfileAbout WILLIS
John Ryan Willis, MD is a healthcare provider in Mount Vernon, IL specialising in diagnostic radiology. John trained at Southern Illinois University School of Medicine, graduating in 1998.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Willis's specialty?
Dr. Willis is a diagnostic radiology in Mount Vernon, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where can I find Dr. Willis?
Dr. Willis is listed at 1 GOOD SAMARITAN WAY, Mount Vernon, IL 62864. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Willis?
The number on file is (618) 242-4600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Willis's NPI number?
Dr. Willis's National Provider Identifier is 1326095670. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Willis's medical education?
Dr. Willis attended Southern Illinois University School of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Willis been practising?
Dr. Willis has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Willis known for?
According to Medicare billing data, Dr. Willis performs imaging including screening mammography and screening 3d breast mammography; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound of both sides of head and neck blood flow. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Willis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Willis. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (618) 242-4600
- Email not available
Practice Locations
1 GOOD SAMARITAN WAY
Mount Vernon, IL 62864
Procedures Most Often Billed to Medicare
2,912 services · 2,820 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Screening mammography | Imaging | 77067 |
494 |
| Screening 3d breast mammography | Imaging | 77063 |
493 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
272 |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
247 |
| Ct scan head or brain without contrast | Imaging | 70450 |
183 |
| X-ray of chest, 1 view | Imaging | 71045 |
130 |
| Ct scan of abdomen and pelvis before and after contrast | Imaging | 74178 |
111 |
| X-ray of knee, 4 or more views | Imaging | 73564 |
104 |
| Ct scan of chest with contrast | Imaging | 71260 |
79 |
| Ct scan of chest without contrast | Imaging | 71250 |
70 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 4 groups
Other diagnostic radiology specialists in Mount Vernon 1
Same specialty, same city.
Trained at Southern Illinois University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Southern Illinois University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 8
Providers in IL who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.