Dr. Karolina Stack, M.D.
Dr. Karolina Stack is a Pediatrics Physician provider (Pediatrics) practicing in Oshkosh, WI, registered in the NPPES registry with NPI 1053842443 since 2017. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1053842443 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Karolina Stack |
| Credential | M.D. |
| Sex | Female |
| Practice address | Oshkosh, WI, 54904 |
| Phone | 9202238000 |
| Enumeration date | 2017-03-27 |
| Last updated in NPPES | 2025-06-30 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208000000X | Pediatrics Physician | Secondary | 1053842243 | IL |
| 208000000X | Pediatrics Physician | Secondary | 036.151998 | IL |
| 208000000X | Pediatrics Physician | Primary | 83243 | WI |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100273308 | Medicaid | WI | — |
Copy-ready billing details
Provider: Karolina Stack, M.D. NPI: 1053842443 Taxonomy: 208000000X (Pediatrics Physician) Address: Oshkosh, WI, 54904
Verify this record
Cross-check NPI 1053842443 against the authoritative CMS record: view Dr. Karolina Stack on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-06-30.