ZACHAROULA OIKONOMOPOULOU MD
NPI 1922423367
Pediatrics - Pediatric Infectious Diseases in Saint Louis, MO
About Zacharoula Oikonomopoulou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHAROULA OIKONOMOPOULOU MD (NPI 1922423367) is an individual pediatric infectious diseases provider in Saint Louis, Missouri, licensed in Missouri (2021019032) and active in the NPI registry since February 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2009).
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
Zacharoula Oikonomopoulou 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 Zacharoula Oikonomopoulou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SAINT LOUIS, MO 63104
SAINT LOUIS, MO 63104
ST.LOUIS, MO 63104
SAINT LOUIS, MO 63104
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 Zacharoula Oikonomopoulou's NPI number?
The NPI number for Zacharoula Oikonomopoulou is 1922423367. It was assigned to this individual provider in the NPPES registry on February 21, 2014.
Where is Zacharoula Oikonomopoulou located?
Zacharoula Oikonomopoulou practices at 1465 S Grand Blvd Division Of Pediatric Infectious Diseases, Saint Louis, MO 63104. The listed phone number is (314) 577-5644.
What is Zacharoula Oikonomopoulou's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.
Is Zacharoula Oikonomopoulou enrolled in Medicare?
Yes. Zacharoula Oikonomopoulou 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 Zacharoula Oikonomopoulou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zacharoula Oikonomopoulou reassigns Medicare benefits to Ssm Health Care Group (Saint Louis, MO). 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 Zacharoula Oikonomopoulou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zacharoula Oikonomopoulou 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 4 other insurers list Zacharoula Oikonomopoulou 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 Zacharoula Oikonomopoulou was last updated on September 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Zacharoula Oikonomopoulou, MD · NPI 1922423367
Pediatric Infectious Diseases physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since February 21, 2014.
## Identity
- **NPI:** 1922423367 (Entity type: Individual)
- **Enumerated:** February 21, 2014
- **Primary specialty:** Pediatrics - Pediatric Infectious Diseases · taxonomy 2080P0208X
- **State license:** 2021019032 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1465 S GRAND BLVD, DIVISION OF PEDIATRIC INFECTIOUS DISEASES, Saint Louis, MO 63104-1003
- **Phone:** (314) 577-5644 · **Fax:** (314) 268-2712
## 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:** Ssm Health Care Group (NPI 1306589544, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** September 8, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1922423367) · Data from the CMS NPPES public registry.