DR. DEMYTRA KRISTA LEE MIHAILIDIS MD
NPI 1235441023
Internal Medicine - Hematology & Oncology in Appleton, WI
About Dr. Demytra Krista Lee Mihailidis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEMYTRA KRISTA LEE MIHAILIDIS MD (NPI 1235441023) is an individual hematology & oncology provider in Appleton, Wisconsin, licensed in Wisconsin (84135) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Med Ctr - Neenah, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
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. Demytra Krista Lee Mihailidis 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
3Medicare enrollment records show Demytra Mihailidis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Menasha, WI 54952
- Reassigned Medicare billing, Wisconsin enrollment
- 988 clinicians in this Medicare group
North Platte, NE 69101
- Reassigned Medicare billing, Nebraska enrollment
- 365 clinicians in this Medicare group
Mc Cook, NE 69001
- Reassigned Medicare billing, Nebraska enrollment
- 57 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
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.
Thedacare Regional Med Ctr - Neenah
Acute Care Hospitals · Neenah, WIThedacare Regional Medical Center - Appleton Inc
Acute Care Hospitals · Appleton, WIThedacare Medical Center - New London
Critical Access Hospitals · New London, WIThedacare Medical Center-Waupaca
Critical Access Hospitals · Waupaca, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54911 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.
APPLETON, WI 54911
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 Demytra Mihailidis's NPI number?
The NPI number for Demytra Mihailidis is 1235441023. It was assigned to this individual provider in the NPPES registry on July 8, 2010. The provider is also known as Dr. Demytra Krista Lee Mitsis MD.
Where is Demytra Mihailidis located?
Demytra Mihailidis practices at 2500 E Capitol Dr, Appleton, WI 54911. The listed phone number is (920) 364-3600.
What is Demytra Mihailidis's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Demytra Mihailidis enrolled in Medicare?
Yes. Demytra Mihailidis 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 Demytra Mihailidis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Demytra Mihailidis reassigns Medicare benefits to 3 organizations: Thedacare, Incorporated (Menasha, WI), North Platte Nebraska Hospital Corporation (North Platte, NE) and Community Hospital Association (Mc Cook, NE). 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 Demytra Mihailidis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Demytra Mihailidis accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health and 2 other insurers list Demytra Mihailidis 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 Demytra Mihailidis affiliated with any hospitals?
According to CMS data, Demytra Mihailidis is affiliated with Thedacare Regional Med Ctr - Neenah, Thedacare Regional Medical Center - Appleton Inc, Thedacare Medical Center - New London and Thedacare Medical Center-Waupaca.
When was this NPI record last updated?
The NPPES record for Demytra Mihailidis was last updated on August 21, 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.
# Dr. Demytra Krista Lee Mihailidis, MD · NPI 1235441023
Hematology & Oncology physician in Appleton, Wisconsin. Individual provider, active in the CMS NPPES registry since July 8, 2010.
## Identity
- **NPI:** 1235441023 (Entity type: Individual)
- **Enumerated:** July 8, 2010
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 84135 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2500 E CAPITOL DR, Appleton, WI 54911-8735
- **Phone:** (920) 364-3600
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Thedacare, Incorporated (NPI 1306959515, Menasha, WI); North Platte Nebraska Hospital Corporation (NPI 1134355332, North Platte, NE); Community Hospital Association (NPI 1588771158, Mc Cook, NE) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** August 21, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1235441023) · Data from the CMS NPPES public registry.