Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1265052344 Individual Practitioner Male Practitioner

Dr. Stephen John Hassig , MD, MBA

Urology • Madison, WI

Professional Overview & Biography Verified Profile Summary

Dr. Stephen Hassig, MD, MBA is a registered healthcare professional specializing in Urology in Madison, WI. Practice services are available at 600 HIGHLAND AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

600 Highland Ave

Madison, WI 537920001

Telephone 6089140200
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Madison, WI

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 20.7 Yrs
State Avg: 25.7 Yrs
Regional Practice Density
54 Specialists

Practicing in Madison, WI (278 Statewide)

Telehealth Adoption Rate
38.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-06-30
Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License WI 87292-20

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Secondary Practice Locations

601 Elmwood Ave

Rochester, NY 146420001

Phone: 5852754786

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
NPI 1003001751

Doctor of Pharmacy (Pharm.D.)

NPI 1003106378

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

NPI 1003132697

Doctor of Medicine (M.D.)

Dr. Swapnil Lanjewar , MD

Internal Medicine - Infectious Disease

NPI 1003170671

Doctor of Medicine (M.D.)

NPI 1003173543

Doctor of Medicine (M.D.)

NPI 1003207762

MDMPH

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events
📍
Updated Practice Location June 30, 2026

Registered at 600 HIGHLAND AVE, MADISON, WI 537920001 (Tel: 6089140200)

📍
Updated Business Mailing Address June 30, 2026

Registered at 7974 UW HEALTH CT, MIDDLETON, WI 535625531

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 30, 2026

Urology (License #87292-20 in WI)

📍
Updated Business Mailing Address August 24, 2021

Registered at 601 ELMWOOD DRIVE BOX 656, ROCHESTER, NY 146420001 (Tel: 5852731904)

NPI Profile Active April 20, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location April 20, 2020

Registered at 601 ELMWOOD AVE, ROCHESTER, NY 146420001 (Tel: 5852754786)

📍
Updated Business Mailing Address April 20, 2020

Registered at 58 REDFERN DR, ROCHESTER, NY 146204618 (Tel: 6074278620)

👤
Provider Name / Credentials Updated April 20, 2020

Recorded as STEPHEN HASSIG, MD, MBA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 20, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 20, 2020

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1265052344
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 20, 2020
Last Update: June 30, 2026
Sole Proprietor: Yes

Mailing Address

7974 Uw Health Ct

Middleton, WI 535625531

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.