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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEPHEN JOHN HASSIG MD, MBA
NPI 1265052344
Urology in Madison, WI

Active since April 20, 2020PECOS Enrolled
600 HIGHLAND AVE, MADISON, WI 53792(608) 914-0200 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 24, 2021, Apr 20, 2020 (2 updates tracked since 2020).

About Dr. Stephen John Hassig Md, Mba NPPES

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

DR. STEPHEN JOHN HASSIG MD, MBA (NPI 1265052344) is an individual urology provider in Madison, Wisconsin, licensed in Wisconsin (87292-20) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and maintains a secondary practice location in Rochester.

NPPES Registry Identity

NPI1265052344
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameDR. STEPHEN JOHN HASSIGCredential: MD, MBA
Location Address600 HIGHLAND AVEMadison, WI 53792-0001
Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531
Phone(608) 914-0200
Sole ProprietorYes
Enumeration DateApril 20, 2020
Last NPPES UpdateJune 30, 20262 updates tracked since enumeration
NPPES CertifiedJune 30, 2026
✔ NPI 1265052344 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in WI · 87292-20
Definition
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.
600 HIGHLAND AVE, Madison, WI 53792
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Secondary Practice Location 1

Location 1601 Elmwood AveRochester, NY 14642-0001 · Phone (585) 275-4786

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephen John Hassig Md, Mba is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53792 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JASON ALAN CHRISTENSEN PHARMD
Pharmacist
600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792
Dane County (608) 662-0817
LAURA JEAN KOPPLIN MD, PHD
Ophthalmology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6070
HAGGI MAZEH MD
Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 265-8072
DR. SWAPNIL SUNIL LANJEWAR M.D.
Internal Medicine (Infectious Disease)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-0946
DR. MATTHEW JAMES HOYT M.D.
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
VANESSA MERCEDES WELTEN MD MPH
Transplant Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (617) 732-5500
JOHN HENRY NORMAN HARRISON
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
PIPPA FROUKTE COSPER MD
Radiology (Radiation Oncology)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8500

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 Stephen Hassig's NPI number?

The NPI number for Stephen Hassig is 1265052344. It was assigned to this individual provider in the NPPES registry on April 20, 2020.

Where is Stephen Hassig located?

Stephen Hassig practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 914-0200.

What is Stephen Hassig's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Stephen Hassig enrolled in Medicare?

Yes. Stephen Hassig is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Stephen Hassig was last updated on June 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days 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.