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GEORGE HVOSTIK, MD, S.C.
NPI 1255664066
Internal Medicine - Nephrology in Libertyville, IL

Active since September 11, 2009
1860 W WINCHESTER RD STE 107B, LIBERTYVILLE, IL 60048(847) 996-0836(847) 996-6278 Get Directions Write a Review

NPPES record last updated: January 24, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 24, 2022, May 2, 2018 (2 updates tracked since 2018).

About George Hvostik, Md, S.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GEORGE HVOSTIK, MD, S.C. (NPI 1255664066) is a healthcare organization registered as a nephrology in Libertyville, Illinois and active in the NPI registry since September 2009. The organization lists George Hvostik, Ceo, as its authorized official.

NPPES Registry Identity

NPI1255664066
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameGEORGE HVOSTIK, MD, S.C.
Location Address1860 W WINCHESTER RD STE 107BLibertyville, IL 60048-5312
Mailing Address1860 W Winchester Rd Ste 107bLibertyville, IL 60048-5312 · (847) 996-0836 · Fax (847) 996-6278
Phone(847) 996-0836
Fax(847) 996-6278
Organization SubpartNo
Authorized OfficialGeorge HvostikCeo · (847) 996-0836
Enumeration DateSeptember 11, 2009
Last NPPES UpdateJanuary 24, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 24, 2022
✔ NPI 1255664066 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in IL · 036071912
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1860 W WINCHESTER RD STE 107B, Libertyville, IL 60048
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

George Hvostik, Md, S.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to George Hvostik, MD, S.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

George Hvostik, MD
Nephrology
NPI 1023015021
1860 W WINCHESTER RD STE 107B
Libertyville, IL 60048
(847) 996-0836
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is George Hvostik, MD, S.C.'s NPI number?

The NPI number for George Hvostik, MD, S.C. is 1255664066. It was assigned to this organization in the NPPES registry on September 11, 2009.

Where is George Hvostik, MD, S.C. located?

George Hvostik, MD, S.C. is located at 1860 W Winchester Rd Ste 107B, Libertyville, IL 60048. The listed phone number is (847) 996-0836.

What is George Hvostik, MD, S.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is George Hvostik, MD, S.C. enrolled in Medicare?

Yes. George Hvostik, MD, S.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through George Hvostik, MD, S.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nephrology) reassigns their Medicare billing to George Hvostik, MD, S.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for George Hvostik, MD, S.C. was last updated on January 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.