MARK FESEN MD
NPI 1639149545
Internal Medicine - Medical Oncology in Great Bend, KS
About Mark Fesen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK FESEN MD (NPI 1639149545) is an individual medical oncology provider in Great Bend, Kansas, licensed in Kansas (04-24425) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Ks Hlth System Great Bend Campus, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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
Mark Fesen 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 Reassignment
Medicare enrollment records show Mark Fesen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Bend, KS 67530
- Reassigned Medicare billing, Kansas enrollment
- 10 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 39
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Ks Hlth System Great Bend Campus
Acute Care Hospitals · Great Bend, KSEllsworth County Medical Center
Critical Access Hospitals · Ellsworth, KSClara Barton Hospital
Critical Access Hospitals · Hoisington, KSPawnee Valley Community Hospital
Critical Access Hospitals · Larned, KSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 67530 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 7
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREAT BEND, KS 67530
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 Mark Fesen's NPI number?
The NPI number for Mark Fesen is 1639149545. It was assigned to this individual provider in the NPPES registry on January 24, 2006.
Where is Mark Fesen located?
Mark Fesen practices at 204 Cleveland St, Great Bend, KS 67530. The listed phone number is (620) 792-5511.
What is Mark Fesen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Mark Fesen enrolled in Medicare?
Yes. Mark Fesen 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 Mark Fesen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Fesen reassigns Medicare benefits to Central Care, PA (Great Bend, KS). 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 Mark Fesen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Fesen accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Ambetter of Oklahoma and Blue Cross and Blue Shield of Kansas, Inc. and 1 other insurer list Mark Fesen 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 Mark Fesen affiliated with any hospitals?
According to CMS data, Mark Fesen is affiliated with University Of Ks Hlth System Great Bend Campus, Ellsworth County Medical Center, Clara Barton Hospital and Pawnee Valley Community Hospital.
When was this NPI record last updated?
The NPPES record for Mark Fesen was last updated on October 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.