Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Nicole Krolak, DO

Individual provider Internal Medicine Physician · NPI 1407342561

Nicole Krolak, DO is a Hospitalist in Marshfield, Wisconsin. Qualified in 2018, 8 years ago. Practices with Mchs Hospitals Inc, a 1,194-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
8
Licensed in
WI
In the registry since
2018
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone: (651) 269-8379
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 73044 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 7430-851 (WI)
Pediatrics Physician Taxonomy 208000000X · Licence 7430-851 (WI)

Record details

NPI number1407342561
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 2, 2018
Last updated in NPPESFebruary 3, 2023
Certification dateFebruary 3, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice McHs Hospitals Inc — 1194 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients97
Services billed 238 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Marshfield Medical Center Hospital · Marshfield, WI

Colleagues at Mchs Hospitals Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1194 clinicians in the practice; 12 are shown here.

Other providers in Marshfield