CHARLES A MATESKON MD
NPI 1639279763
Radiology - Radiation Oncology in Lone Tree, CO
About Charles A Mateskon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES A MATESKON MD (NPI 1639279763) is an individual radiation oncology provider in Lone Tree, Colorado, licensed in Colorado (27422) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with University Medical Center-mesabi/ Mesaba Clinics, and maintains a secondary practice location in Rice Lake.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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
Charles A Mateskon Md 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
10Medicare enrollment records show Charles Mateskon reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenwood Village, CO 80111
- Reassigned Medicare billing, Colorado enrollment
- 157 clinicians in this Medicare group
Rock Springs, WY 82901
- Reassigned Medicare billing, Wyoming enrollment
- Also billed through NPI 1558361949 (Wyoming)
- 176 clinicians in this Medicare group
Eau Claire, WI 54701
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Hibbing, MN 55746
- Reassigned Medicare billing, Minnesota enrollment
- 707 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,440 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Madison, WI 53713
- Reassigned Medicare billing, Wisconsin enrollment
- 11 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Columbus, WI 53925
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Beaver Dam Community Hospitals Inc.
- 1,447 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Medical Center-Mesabi/ Mesaba Clinics
Acute Care Hospitals · Hibbing, MNMarshfield Medical Center - Rice Lake
Acute Care Hospitals · Rice Lake, WISsm Health St Clare Hospital - Baraboo
Acute Care Hospitals · Baraboo, WISsm Health St Mary's Hospital - Janesville
Acute Care Hospitals · Janesville, WIMarshfield Medical Center - Eau Claire
Acute Care Hospitals · Eau Claire, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80124 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LONE TREE, CO 80124
LONE TREE, CO 80124
LONE TREE, CO 80124
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 Charles Mateskon's NPI number?
The NPI number for Charles Mateskon is 1639279763. It was assigned to this individual provider in the NPPES registry on September 25, 2006.
Where is Charles Mateskon located?
Charles Mateskon practices at 10103 Ridgegate Pkwy Ste G01, Lone Tree, CO 80124. The listed phone number is (720) 225-4200.
What is Charles Mateskon's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Charles Mateskon enrolled in Medicare?
Yes. Charles Mateskon 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 Charles Mateskon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Mateskon reassigns Medicare benefits to 10 organizations: Rocky Mountain Cancer Centers LLP (Greenwood Village, CO), Memorial Hospital Of Sweetwater County (Rock Springs, WY), Mchs Hospitals Inc (Eau Claire, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI), Range Regional Health Services (Hibbing, MN) and 5 more organizations, listed in the Medicare section above. 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 Charles Mateskon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Charles Mateskon accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming and HealthPartners list Charles Mateskon 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.
Is Charles Mateskon affiliated with any hospitals?
According to CMS data, Charles Mateskon is affiliated with University Medical Center-Mesabi/ Mesaba Clinics, Marshfield Medical Center - Rice Lake, Ssm Health St Clare Hospital - Baraboo, Ssm Health St Mary's Hospital - Janesville and Marshfield Medical Center - Eau Claire.
When was this NPI record last updated?
The NPPES record for Charles Mateskon was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Charles A Mateskon, MD · NPI 1639279763
Radiation Oncology physician in Lone Tree, Colorado. Individual provider, active in the CMS NPPES registry since September 25, 2006.
## Identity
- **NPI:** 1639279763 (Entity type: Individual)
- **Enumerated:** September 25, 2006
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** 27422 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 10103 RIDGEGATE PKWY STE G01, Lone Tree, CO 80124-5521
- **Phone:** (720) 225-4200 · **Fax:** (720) 225-4208
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Rocky Mountain Cancer Centers LLP (NPI 1861539538, Greenwood Village, CO); Memorial Hospital Of Sweetwater County (NPI 1437312436, Rock Springs, WY); Mchs Hospitals Inc (NPI 1316416035, Eau Claire, WI); Lakeview Medical Center Inc Of Rice Lake (NPI 1659008605, Chetek, WI); Range Regional Health Services (NPI 1356321699, Hibbing, MN); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Saint Louis University School Of Medicine, class of 1982
## Record status
- **NPPES last updated:** September 23, 2025
- **Other identifiers:** Medicaid 01274224 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1639279763) · Data from the CMS NPPES public registry.