Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marek J Lisek, D.O.
Hospitalist Physician in Beloit, WI · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932858594
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Registry record
Entity type Individual (Type 1)
Name Dr. Marek J Lisek
Credential D.O.
Sex Male
Practice address Beloit Health System, 1969 W Hart Road, Beloit, WI, 53511
Phone (608) 363-5971
Fax (608) 363-5737
Enumeration date Mar 21, 2022
Last updated in NPPES Aug 13, 2025
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 81395-21 (WI) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 81395-21 (WI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100281912 | Medicaid | WI | - |
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.
Frequently asked questions
What is the NPI number for Marek Lisek?
The National Provider Identifier (NPI) for Marek Lisek is 1932858594, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marek Lisek practice?
The practice location on file with NPPES is in Beloit, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-13.