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

Jay Oliver Lenz

Individual provider Surgery Physician · NPI 1023171444

Jay Oliver Lenz practises General Surgery in Duluth, Minnesota. Graduated from University of Minnesota Medical School in 1986, 40 years ago. Practices with Lakewood Health System, a 107-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
40
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2006
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Practice location Address checks out

400 E 3rd St
Duluth, MN 55805-1951 Not confirmed with CMS for 19 years — call before visiting
Phone: (218) 786-1234
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 31309 (MN)

Record details

NPI number1023171444
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 18, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1986 (40 years in practice)
Group practice Lakewood Health System — 107 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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.

Colonoscopy 1–10 times
Upper gastrointestinal (GI) endoscopy for acid reflux 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Lakewood Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 107 clinicians in the practice; 12 are shown here.

Other providers in Duluth