YUNUS EMRE DEMIRHAN MD
NPI 1558947440
Internal Medicine in Saint Clair, MO
About Yunus Emre Demirhan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YUNUS EMRE DEMIRHAN MD (NPI 1558947440) is an individual internal medicine provider in Saint Clair, Missouri, licensed in Missouri (2025013245) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Washington, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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
Yunus Emre Demirhan 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
2Medicare enrollment records show Yunus Emre Demirhan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sullivan, MO 63080
- Reassigned Medicare billing, Missouri enrollment
- 228 clinicians in this Medicare group
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Washington
Acute Care Hospitals · Washington, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63077 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 9
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 Yunus Emre Demirhan's NPI number?
The NPI number for Yunus Emre Demirhan is 1558947440. It was assigned to this individual provider in the NPPES registry on March 22, 2021.
Where is Yunus Emre Demirhan located?
Yunus Emre Demirhan practices at 1001 Cardwell St, Saint Clair, MO 63077. The listed phone number is (636) 629-3300.
What is Yunus Emre Demirhan's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Yunus Emre Demirhan enrolled in Medicare?
Yes. Yunus Emre Demirhan 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 Yunus Emre Demirhan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yunus Emre Demirhan reassigns Medicare benefits to 2 organizations: Mercy Clinic East Communities (Sullivan, MO) and Baystate Medical Practices, Inc (Springfield, MA). 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 Yunus Emre Demirhan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Yunus Emre Demirhan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Yunus Emre Demirhan 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 Yunus Emre Demirhan affiliated with any hospitals?
According to CMS data, Yunus Emre Demirhan is affiliated with Mercy Hospital Washington.
When was this NPI record last updated?
The NPPES record for Yunus Emre Demirhan was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Yunus Emre Demirhan, MD · NPI 1558947440
Internal Medicine physician in Saint Clair, Missouri. Individual provider, active in the CMS NPPES registry since March 22, 2021.
## Identity
- **NPI:** 1558947440 (Entity type: Individual)
- **Enumerated:** March 22, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 2025013245 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 CARDWELL ST, Saint Clair, MO 63077-1094
- **Phone:** (636) 629-3300
## 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): Mercy Clinic East Communities (NPI 1467716928, Sullivan, MO); Baystate Medical Practices, Inc (NPI 1548205909, Springfield, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1558947440) · Data from the CMS NPPES public registry.