Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Nadiia Marenych, MD

Individual provider Internal Medicine Physician · NPI 1235668831

Nadiia Marenych, MD is an Endocrinology in Lake Geneva, Wisconsin. Qualified in 2011, 15 years ago. Practices with Aurora Medical Group, Inc, a 3,741-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Wisconsin.

Years since qualifying
15
Licensed in
IL, WI
In the registry since
2017
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

146 E Geneva Sq
Lake Geneva, WI 53147-9694
Phone: (262) 249-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 23048-875 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036.151695 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 036.151695 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125070812 (IL)

Record details

NPI number1235668831
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2017
Last updated in NPPESDecember 29, 2025
Certification dateDecember 29, 2025

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Aurora Medical Group, Inc. — 3741 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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