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Edit this profileBased in Knoxville, TN, John P. Williams, MD is listed in the NPI registry under radiology. According to Medicare claims data, John cared for 439 Medicare patients across 442 services. The services billed most often include screening 3d breast mammography, screening mammography, and x-ray of chest, 2 views. NPI 1659341832 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2001 LAUREL AVE SUITE N304
Knoxville, TN 37916
Within Radiology (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Abdomen & Pelvis
Bone Health
Brain & Spine
Breast
Cancer & Tumors
Chest & Lungs
Digestive
Foot & Ankle
General
Head & Brain
Head & Face
Injuries
Joint & Muscle
Joints & Orthopedics
Neck & Thyroid
Nerves & Neuropathy
Pelvic & Reproductive
Spine & Back
Vascular
Biopsies
Biopsy
Bone Health
Breast Imaging
CT Scan
Diagnostic Scans
Interventional Radiology
MRI
Nuclear Medicine
Pain Relief Procedures
Specialized Imaging
Ultrasound
X-Ray
X-Rays
442 services · 439 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening 3d breast mammography | Imaging | 77063 |
135 | Less often than most peers in Radiology |
| Screening mammography | Imaging | 77067 |
134 | Less often than most peers in Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
55 | As often as other peers in Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
35 | Less often than most peers in Radiology |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
16 | Less often than most peers in Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
14 | Less often than most peers in Radiology |
| Ct scan of chest without contrast | Imaging | 71250 |
12 | Less often than most peers in Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
12 | Less often than most peers in Radiology |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
11 | Less often than most peers in Radiology |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
18 | Less often than most peers in Radiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Williams is a radiologist in Knoxville, TN. That is the designation recorded for this NPI in the federal registry, where it is listed as “Radiology”.
NPI registry
Dr. Williams is listed at 2001 Laurel Ave Suite N304, Knoxville, TN 37916. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (865) 546-9484. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Williams's National Provider Identifier is 1659341832. 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
Dr. Williams has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Dr. Williams performs imaging including screening 3d breast mammography and screening mammography; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Williams. If this is you, claiming it is free.
Guide.md
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