DR. KATHERINE MARCHAK M.D.
NPI 1780033514
Radiology - Vascular & Interventional Radiology in Aurora, CO
About Dr. Katherine Marchak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHERINE MARCHAK M.D. (NPI 1780033514) is an individual vascular & interventional radiology provider in Aurora, Colorado, licensed in Colorado (DR.0068830) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS and is a graduate of Illinois Medical College (2016).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Accepted Insurance
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
Dr. Katherine Marchak M.d. 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 Reassignments
2Medicare enrollment records show Katherine Marchak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aurora, CO 80045
- Reassigned Medicare billing, Colorado enrollment
- 4,283 clinicians in this Medicare group
Denver, CO 80249
- Reassigned Medicare billing, Colorado enrollment
- 320 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Katherine Marchak's NPI number?
The NPI number for Katherine Marchak is 1780033514. It was assigned to this individual provider in the NPPES registry on June 13, 2016. The provider is also known as Dr. Katherine Groesch M.D..
Where is Katherine Marchak located?
Katherine Marchak practices at 12605 E 16th Ave, Aurora, CO 80045. The listed phone number is (720) 848-0000.
What is Katherine Marchak's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is Katherine Marchak enrolled in Medicare?
Yes. Katherine Marchak 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 organizations bill Medicare for Katherine Marchak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Marchak reassigns Medicare benefits to 2 organizations: University Physicians Incorporated (Aurora, CO) and Uchealth Imaging Services, LLC (Denver, CO). Each 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 Katherine Marchak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Marchak accept?
Health plans from Select Health list Katherine Marchak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Katherine Marchak was last updated on July 29, 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.
# Dr. Katherine Marchak, M.D. · NPI 1780033514
Vascular & Interventional Radiology physician in Aurora, Colorado. Individual provider, active in the CMS NPPES registry since June 13, 2016.
## Identity
- **NPI:** 1780033514 (Entity type: Individual)
- **Enumerated:** June 13, 2016
- **Primary specialty:** Radiology - Vascular & Interventional Radiology · taxonomy 2085R0204X
- **State license:** DR.0068830 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 12605 E 16TH AVE, Aurora, CO 80045-2545
- **Phone:** (720) 848-0000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Physicians Incorporated (NPI 1962461889, Aurora, CO); Uchealth Imaging Services, LLC (NPI 1255148441, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Illinois Medical College, class of 2016
## Record status
- **NPPES last updated:** July 29, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1780033514) · Data from the CMS NPPES public registry.