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

James M Koberstein

Individual provider Obstetrics & Gynecology Physician · NPI 1396785986

James M Koberstein practises Obstetrics/Gynecology in Duluth, Minnesota. Graduated from Creighton University School of Medicine in 1975, 51 years ago. Practices with The Duluth Clinic Ltd, a 1,127-clinician group and accepts Medicare assignment. Licensed in Minnesota and Wisconsin.

Years since qualifying
51
Trained at
Creighton University School of Medicine
Licensed in
MN, WI
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

400 E 3rd St
Duluth, MN 55805-1951 Not confirmed with CMS for 15 years — call before visiting
Phone: (218) 786-3800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 24577 (MN)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 20035-020 (WI)

Record details

NPI number1396785986
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESMay 9, 2011

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Group practice The Duluth Clinic Ltd — 1127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of the uterus 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Colleagues at The Duluth Clinic Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1127 clinicians in the practice; 12 are shown here.

Other providers in Duluth