Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. James Kenneth Seffinga Clark, MD

Individual provider Diagnostic Radiology Physician · NPI 1740336080

Dr. James Kenneth Seffinga Clark, MD is a Diagnostic Radiology in Lebanon, New Hampshire. Graduated from University of Wisconsin School of Medicine in 2006, 20 years ago. Practices with Dartmouth-Hitchcock Clinic, a 1,430-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Nebraska and New Hampshire.

Years since qualifying
20
Trained at
University of Wisconsin School of Medicine
Licensed in
NE, NH
In the registry since
2007
Specialties on file
2
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

1 Medical Center Dr
Lebanon, NH 03756-0001
Phone: (603) 650-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • Naval Medical Center Portsmouth, Portsmouth, VA 23708-1904 — (619) 709-5003

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 24426 (NE)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 34260 (NH)

Record details

NPI number1740336080
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 27, 2007
Last updated in NPPESMarch 4, 2025
Certification dateMarch 4, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Dartmouth-Hitchcock Clinic — 1430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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