GEORGE ANDREW CHOLACK MD, MSC
NPI 1669122214
Internal Medicine - Hematology & Oncology in Rochester, MN
About George Andrew Cholack Md, Msc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GEORGE ANDREW CHOLACK MD, MSC (NPI 1669122214) is an individual hematology & oncology provider in Rochester, Minnesota, licensed in Minnesota (77455) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of Oakland Univ, William Beaumont School Of Medicine (2023).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
George Andrew Cholack Md, Msc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show George Cholack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55905 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
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 Cholack's NPI number?
The NPI number for George Cholack is 1669122214. It was assigned to this individual provider in the NPPES registry on March 26, 2022.
Where is George Cholack located?
George Cholack practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is George Cholack's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is George Cholack enrolled in Medicare?
Yes. George Cholack is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for George Cholack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), George Cholack reassigns Medicare benefits to Mayo Clinic (Rochester, MN). The 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 George Cholack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for George Cholack was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# George Andrew Cholack, MD, MSC · NPI 1669122214
Hematology & Oncology physician in Rochester, Minnesota. Individual provider, active in the CMS NPPES registry since March 26, 2022.
## Identity
- **NPI:** 1669122214 (Entity type: Individual)
- **Enumerated:** March 26, 2022
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 77455 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905-0001
- **Phone:** (507) 284-2511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mayo Clinic (NPI 1114343860, Rochester, MN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oakland Univ, William Beaumont School Of Medicine, class of 2023
## Record status
- **NPPES last updated:** June 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1669122214) · Data from the CMS NPPES public registry.