Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Nathaniel Dueker, MD

Individual provider Diagnostic Radiology Physician · NPI 1588711451

Nathaniel Dueker, MD practises Diagnostic Radiology in Norwich, Connecticut. Graduated from Vanderbilt University School of Medicine in 2002, 24 years ago. Practices with Diagnostic Imaging Services of CT LLC, a 19-clinician group. Licensed in Connecticut.

Years since qualifying
24
Trained at
Vanderbilt University School of Medicine
Licensed in
CT
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

326 Washington St
Norwich, CT 06360-2740 Not confirmed with CMS for 15 years — call before visiting
Phone: (860) 889-8331
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 46298 (CT)

Record details

NPI number1588711451
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2007
Last updated in NPPESApril 19, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Diagnostic Imaging Services Of Ct Llc — 19 clinicians
Accepts Medicare assignment Not indicated
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,670
Services billed 2,127 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Diagnostic Imaging Services of CT LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 19 clinicians in the practice; 12 are shown here.

Other providers in Norwich