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

James L Leenstra, MD

Individual provider Internal Medicine Physician · NPI 1174593982

James L Leenstra, MD is a Radiation Oncology in Rochester, Minnesota. Graduated from University of Oklahoma College of Medicine in 2002, 24 years ago. Practices with Mayo Clinic, a 4,796-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Minnesota and Wisconsin.

Years since qualifying
24
Trained at
University of Oklahoma College of Medicine
Licensed in
MN, WI
In the registry since
2006
Specialties on file
3
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

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1400 Bellinger St, Eau Claire, WI 54703-5222 — (715) 838-5222
  • 700 West Ave S, La Crosse, WI 54601-4783 — (608) 785-0940

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 45776 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 45776 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 54234 (WI)

Record details

NPI number1174593982
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 24, 2006
Last updated in NPPESMarch 29, 2021
Certification dateMarch 29, 2021

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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