Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Karolina Stack , MD

Pediatrics β€’ Oshkosh, WI

Active NPI 1053842443 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

2700 W 9th Ave Ste 211
Oshkosh, WI 549047865

Call 9202238000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2700 W 9th Ave Ste 211

Oshkosh, WI 549047865

Telephone 9202238000
Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Ascension Medical Group-Fox Valley Wisconsin Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Loyola University Of Chicago, Stritch School Of Medicine

Graduation Year

2017

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2017

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Stack has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Stack as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Oshkosh and Wisconsin

14 active clinicians are listed under Pediatrics with a practice address in Oshkosh, WI (1,203 in Wisconsin).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Oshkosh

0% of these 14 clinicians have the CMS telehealth indicator.

7.1% of these 14 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-06-30
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

License # reported to NPPES 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

License # reported to NPPES 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

License # reported to NPPES 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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Wisconsin Department of Safety and Professional Services.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
100273308 (WI)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PEDIATRIC MEDICINE

Medicare Enrollment ID

I20240515004175

Enrollment State Jurisdiction

WI

PECOS Control ID

4082055421

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Ascension Medical Group-Fox Valley Wisconsin Inc

2700 W 9th Ave, Oshkosh, WI 549047247

Phone: 9202232000

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

12 Historical Events
πŸ“
Updated Practice Location June 30, 2025

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

πŸ“
Updated Business Mailing Address June 30, 2025

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

πŸ“
Updated Practice Location June 29, 2020

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

πŸ“
Updated Business Mailing Address June 29, 2020

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

πŸ‘€
Provider Name / Credentials Updated June 29, 2020

Recorded as KAROLINA STACK, M.D.

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

Pediatrics (license number reported to NPPES: IL 1053842243)

βœ…
NPI Profile Active March 27, 2017

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) March 27, 2017

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

πŸ“
Business Mailing Address (Initial Record) March 27, 2017

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

πŸ‘€
Provider Name / Credentials (Initial Record) March 27, 2017

Recorded as KAROLINA SABALIAUSKAITE, M.D.

πŸŽ“
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.

No reviews have been published yet. Leave a review.

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

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.