DR. DIANA C MEDGYESY MD
NPI 1083660708
Internal Medicine - Medical Oncology in Fort Collins, CO
About Dr. Diana C Medgyesy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIANA C MEDGYESY MD (NPI 1083660708) is an individual medical oncology provider in Fort Collins, Colorado, licensed in Colorado (DR.0038494) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 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
Dr. Diana C Medgyesy 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 Diana Medgyesy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Loveland, CO 80538
- Reassigned Medicare billing, Colorado enrollment
- 2,596 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 4
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 80528 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FORT COLLINS, CO 80528
FORT COLLINS, CO 80528
FORT COLLINS, CO 80528
FORT COLLINS, CO 80528
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 Diana Medgyesy's NPI number?
The NPI number for Diana Medgyesy is 1083660708. It was assigned to this individual provider in the NPPES registry on May 25, 2006.
Where is Diana Medgyesy located?
Diana Medgyesy practices at 2121 E Harmony Rd Suite 170, Fort Collins, CO 80528. The listed phone number is (970) 493-6337.
What is Diana Medgyesy's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Diana Medgyesy enrolled in Medicare?
Yes. Diana Medgyesy 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 Diana Medgyesy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Medgyesy reassigns Medicare benefits to Poudre Valley Medical Group, LLC (Loveland, CO). 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 Diana Medgyesy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diana Medgyesy accept?
Health plans from Blue Cross and Blue Shield of Nebraska and Select Health list Diana Medgyesy 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 Diana Medgyesy was last updated on March 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. Diana C Medgyesy, MD · NPI 1083660708
Medical Oncology physician in Fort Collins, Colorado. Individual provider, active in the CMS NPPES registry since May 25, 2006.
## Identity
- **NPI:** 1083660708 (Entity type: Individual)
- **Enumerated:** May 25, 2006
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** DR.0038494 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 2121 E HARMONY RD, SUITE 170, Fort Collins, CO 80528-3400
- **Phone:** (970) 493-6337 · **Fax:** (970) 493-3528
## 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:** Poudre Valley Medical Group, LLC (NPI 1225356868, Loveland, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** March 30, 2016
- **Other identifiers:** Medicare PIN 481222YLB8 (CO); Medicare UPIN H29534; Medicaid 83679561 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1083660708) · Data from the CMS NPPES public registry.