EVANGELOS G. TAMBASSIS M.D.
NPI 1679569198
Anesthesiology in Jefferson City, MO
About Evangelos G. Tambassis M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EVANGELOS G. TAMBASSIS M.D. (NPI 1679569198) is an individual anesthesiology provider in Jefferson City, Missouri, licensed in Missouri (104008) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Blessing Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 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
Evangelos G. Tambassis M.d. 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 Evangelos Tambassis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Quincy, IL 62301
- Reassigned Medicare billing, Illinois enrollment
- 127 clinicians in this Medicare group
Saint Louis, MO 63136
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Midwest Anesthesia Providers Sc
- 253 clinicians in this Medicare group
Springfield, IL 62769
- Reassigned Medicare billing, Illinois enrollment
- 826 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 18
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Blessing Hospital
Acute Care Hospitals · Quincy, ILMemorial Hospital
Acute Care Hospitals · Belleville, ILOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JEFFERSON CITY, MO 65101
JEFFERSON CITY, MO 65101
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 Evangelos Tambassis's NPI number?
The NPI number for Evangelos Tambassis is 1679569198. It was assigned to this individual provider in the NPPES registry on September 20, 2005.
Where is Evangelos Tambassis located?
Evangelos Tambassis practices at 1445 Christy Dr, Jefferson City, MO 65101. The listed phone number is (573) 636-3483.
What is Evangelos Tambassis's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Evangelos Tambassis enrolled in Medicare?
Yes. Evangelos Tambassis 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 Evangelos Tambassis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Evangelos Tambassis reassigns Medicare benefits to 3 organizations: Blessing Hospital (Quincy, IL), Midwest Anesthesia Providers S.C (Saint Louis, MO) and North American Partners In Anesthesia (illinois), LLC (Springfield, IL). 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 Evangelos Tambassis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Evangelos Tambassis 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 1 other insurer list Evangelos Tambassis 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 Evangelos Tambassis affiliated with any hospitals?
According to CMS data, Evangelos Tambassis is affiliated with Blessing Hospital and Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Evangelos Tambassis was last updated on April 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.