CONSTANTINE VLAMIS MD
NPI 1699268128
Internal Medicine in Elmhurst, IL
About Constantine Vlamis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CONSTANTINE VLAMIS MD (NPI 1699268128) is an individual internal medicine provider in Elmhurst, Illinois, licensed in Illinois (036154912) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Memorial Medical Center, and maintains a secondary practice location in Springfield.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Constantine Vlamis 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 Constantine Vlamis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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 6
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Medical Center
Acute Care Hospitals · Springfield, ILElmhurst Memorial Hospital
Acute Care Hospitals · Elmhurst, ILTaylorville Memorial Hospital
Critical Access Hospitals · Taylorville, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60126 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 2
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.
ELMHURST, IL 60126
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 Constantine Vlamis's NPI number?
The NPI number for Constantine Vlamis is 1699268128. It was assigned to this individual provider in the NPPES registry on June 9, 2018.
Where is Constantine Vlamis located?
Constantine Vlamis practices at 172 E Schiller St, Elmhurst, IL 60126. The listed phone number is (331) 221-9001.
What is Constantine Vlamis's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Constantine Vlamis enrolled in Medicare?
Yes. Constantine Vlamis 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 Constantine Vlamis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Constantine Vlamis reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, IL). 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 Constantine Vlamis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Constantine Vlamis accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Constantine Vlamis 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 Constantine Vlamis affiliated with any hospitals?
According to CMS data, Constantine Vlamis is affiliated with Memorial Medical Center, Elmhurst Memorial Hospital and Taylorville Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Constantine Vlamis was last updated on November 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.