DR. MICHAEL A DUFFY MD
NPI 1922113182
Internal Medicine in Oshkosh, WI

Active since August 20, 2006
855 N WESTHAVEN DR, OSHKOSH, WI 54904(920) 303-8700 Get Directions Write a Review

NPPES record last updated: May 3, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Michael A Duffy Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MICHAEL A DUFFY MD (NPI 1922113182) is an individual internal medicine provider in Oshkosh, Wisconsin, licensed in Wisconsin (24370) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1922113182
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MICHAEL A DUFFYCredential: MD
Location Address855 N WESTHAVEN DROshkosh, WI 54904-7668
Mailing Address855 N Westhaven DrOshkosh, WI 54904-7668 · (920) 303-8700
Sole ProprietorNo
Enumeration DateAugust 20, 2006
Last NPPES UpdateMay 3, 2016
NPI 1922113182 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in WI · 24370 Licensed in MN · 25340
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
855 N WESTHAVEN DR, Oshkosh, WI 54904

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Pharmacist
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Physician Assistant
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Internal Medicine (Hematology & Oncology)
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Nurse Practitioner
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Nurse Anesthetist, Certified Registered
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Physical Therapist
855 N WESTHAVEN DR
OSHKOSH, WI 54904
Registered Nurse
855 N WESTHAVEN DR
OSHKOSH, WI 54904

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Duffy's NPI number?

The NPI number for Michael Duffy is 1922113182. It was assigned to this individual provider in the NPPES registry on August 20, 2006.

Where is Michael Duffy located?

Michael Duffy practices at 855 N Westhaven Dr, Oshkosh, WI 54904. The listed phone number is (920) 303-8700.

What is Michael Duffy's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Michael Duffy was last updated on May 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.