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

Dr. Jeffrey P Andreini, MD

Individual provider Gastroenterology Physician · NPI 1235266735

Dr. Jeffrey P Andreini, MD is a Gastroenterology in Oshkosh, Wisconsin. Graduated from University of Michigan Medical School in 1986, 40 years ago. Practices with Ascension Medical Group-Fox Valley Wisconsin, Inc, a 260-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
40
Trained at
University of Michigan Medical School
Licensed in
WI
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

2700 W 9th Ave Ste 315A
Oshkosh, WI 54904-7247
Phone: (920) 236-1630
Fax: (920) 235-7897
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 34104020 (WI)

Record details

NPI number1235266735
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 28, 2007
Last updated in NPPESJuly 8, 2007
Mailing address2700 W 9th Ave, Suite 315a, Oshkosh, WI 54904-7247

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1986 (40 years in practice)
Group practice Ascension Medical Group-Fox Valley Wisconsin, Inc — 260 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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