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Active NPI 1053842443 Individual Practitioner Female Practitioner

Dr. Karolina Stack , MD

Pediatrics • Oshkosh, WI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Karolina Stack, MD is a certified Pediatrics practicing in Oshkosh, WI. With approximately 9 years of clinical experience since graduating from Loyola University Of Chicago, Stritch School Of Medicine in 2017, Dr. Stack delivers high-quality medical care to the local community at 2700 W 9TH AVE STE 211.

Dr. Stack is affiliated with Ascension Medical Group-Fox Valley Wisconsin Inc and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

2700 W 9th Ave Ste 211

Oshkosh, WI 549047865

Telephone 9202238000

Medicare Profile & Education

Medical School

Loyola University Of Chicago, Stritch School Of Medicine

Graduation Year

2017

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics in Oshkosh, WI

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
9 Yrs +3.3 yrs vs City Avg
City Avg: 5.7 Yrs
State Avg: 18.1 Yrs
Regional Practice Density
14 Specialists

Practicing in Oshkosh, 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

Clinical Seniority & Experience Comparison

Dr. Stack (9 Years) 9 Yrs
Oshkosh Specialty Average (5.7 Years) 5.7 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-06-30
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

State License WI 83243

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.

Pediatrics

NUCC Taxonomy Code: 208000000X

State License IL 1053842243

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.

Pediatrics

NUCC Taxonomy Code: 208000000X

State License IL 036.151998

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
100273308 (WI)

Hospital & Practice Group Affiliations

Ascension Medical Group-Fox Valley Wisconsin Inc

2700 W 9th Ave, Oshkosh, WI 549047247

Phone: 9202232000

Career & Practice History Timeline

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

12 Historical Events
📍
Updated Practice Location June 30, 2025

Registered at 2700 W 9TH AVE STE 211, OSHKOSH, WI 549047865 (Tel: 9202238000)

📍
Updated Business Mailing Address June 30, 2025

Registered at 2700 W 9TH AVE STE 211, OSHKOSH, WI 549047865 (Tel: 9207382000)

📍
Updated Practice Location June 29, 2020

Registered at 525 E CONGRESS PKWY STE 220, CRYSTAL LAKE, IL 600146258 (Tel: 8154596780)

📍
Updated Business Mailing Address June 29, 2020

Registered at 525 E CONGRESS PKWY STE 220, CRYSTAL LAKE, IL 600146258 (Tel: 8154596780)

👤
Provider Name / Credentials Updated June 29, 2020

Recorded as KAROLINA STACK, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 03, 2020

Pediatrics (License #1053842243 in IL)

NPI Profile Active March 27, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location March 27, 2017

Registered at 2160 S 1ST AVE, MAYWOOD, IL 601533328 (Tel: 7083279124)

📍
Updated Business Mailing Address March 27, 2017

Registered at 2160 S 1ST AVE, MAYWOOD, IL 601533328 (Tel: 7083279124)

👤
Provider Name / Credentials Updated March 27, 2017

Recorded as KAROLINA SABALIAUSKAITE, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 27, 2017

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 27, 2017

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: 1053842443
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 27, 2017
Last Update: June 30, 2025
Sole Proprietor: Yes

Mailing Address

2700 W 9th Ave Ste 211

Oshkosh, WI 549047865

Phone: 9207382000

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.