Based in Rochester, MN, John M. Knudsen, M.D. is listed in the NPI registry under diagnostic radiology. John graduated from Texas A & M University System, Hsc, College of Medicine in 1986. John is also listed as specializing in diagnostic ultrasound. According to Medicare claims data, John cared for 177 Medicare patients across 11,599 services. The services billed most often include low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml and ct scan of abdomen and pelvis with contrast. NPI 1780664268 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.
200 1ST ST SW
Rochester, MN 55905
13400 E Shea Blvd
Scottsdale, AZ 85259
Within Diagnostic Radiology 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 & Joint
Brain & Head
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Abdominal imaging
Biopsies
Bone Density
Breast Imaging
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
Urinary & kidney
Women's health
X-Ray
11,599 services · 177 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
90 | As often as other peers in Diagnostic Radiology |
| Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | Billing code | Q9967 |
11,509 | More often than most peers in Diagnostic Radiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
John M. Knudsen is a radiologist in Rochester, MN. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
John M. Knudsen is listed at 200 1St St Sw, Rochester, MN 55905. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (507) 284-2511. Contact the office directly to confirm availability and scheduling.
NPI registry
John M. Knudsen's National Provider Identifier is 1780664268. 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
John M. Knudsen attended Texas A & M University System, Hsc, College of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
John M. Knudsen has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, John M. Knudsen performs imaging including ct scan of abdomen and pelvis with contrast. 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 John M. Knudsen. If this is you, claiming it is free.
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