Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1629600200 Individual Practitioner Female Practitioner

Dr. Cassandra Gwendolyn Windau , MD

Pediatrics • Madison, WI

Professional Overview & Biography Verified Profile Summary

Dr. Cassandra Windau, MD is a registered healthcare professional specializing in Pediatrics 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 6082636400
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics in Madison, WI

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 19.8 Yrs
State Avg: 18.1 Yrs
Regional Practice Density
194 Specialists

Practicing in Madison, WI (1245 Statewide)

Telehealth Adoption Rate
0.0% 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: 2025-06-27
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

State License WI 101735-851

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Behavior Technician

NUCC Taxonomy Code: 106S00000X

State License WI RBT-19-106766

The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work.

Practice Associates & Co-Workers

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

40 Associated Practitioners
NPI 1003260050

Doctor of Medicine (M.D.)

Dr. David Francis , MD

Radiology - Radiation Oncology

NPI 1003299942

Doctor of Medicine (M.D.)

Dr. Nancy Ann Little , MD

Radiology - Diagnostic Radiology

NPI 1003376401

Doctor of Medicine (M.D.)

Dr. Lixia Bai , MD, PhD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1003379421

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

NPI 1003379488

Doctor of Medicine (M.D.)

Dr. Hayley Varilek , PharmD

Pharmacist - Critical Care

NPI 1003404989

Doctor of Pharmacy (Pharm.D.)

Career & Practice History Timeline

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

11 Historical Events
📍
Updated Practice Location June 27, 2025

Registered at 600 HIGHLAND AVE, MADISON, WI 537920001 (Tel: 6082636400)

📍
Updated Business Mailing Address June 27, 2025

Registered at 600 HIGHLAND AVE, MADISON, WI 537920001

📍
Updated Practice Location May 27, 2025

Registered at 749 UNIVERSITY ROW STE 200, MADISON, WI 537051465 (Tel: 6082636400)

📍
Updated Business Mailing Address May 27, 2025

Registered at 749 UNIVERSITY ROW STE 200, MADISON, WI 537051465 (Tel: 6082636400)

👤
Provider Name / Credentials Updated May 27, 2025

Recorded as CASSANDRA WINDAU, MD

NPI Profile Active February 11, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location February 11, 2020

Registered at 3113 W BELTLINE HWY STE 300, MADISON, WI 537132934 (Tel: 6088196810)

📍
Updated Business Mailing Address February 11, 2020

Registered at 3113 W BELTLINE HWY STE 300, MADISON, WI 537132934 (Tel: 6088196810)

👤
Provider Name / Credentials Updated February 11, 2020

Recorded as CASSANDRA WINDAU

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 11, 2020

Behavior Technician (License #RBT-19-106766 in WI)

🟢
Initial NPI Registration & Enumeration February 11, 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: 1629600200
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 11, 2020
Last Update: June 27, 2025
Sole Proprietor: No

Mailing Address

600 Highland Ave

Madison, WI 537920001

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.