DR. ERIC NALAGAN M.D.
NPI 1033287610
Family Medicine in Saint Charles, MO
About Dr. Eric Nalagan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ERIC NALAGAN M.D. (NPI 1033287610) is an individual family medicine provider in Saint Charles, Missouri, licensed in Missouri (2008018822) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Eric Nalagan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Eric Nalagan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
O Fallon, MO 63366
- Reassigned Medicare billing, Missouri enrollment
- 697 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63303 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Eric Nalagan's NPI number?
The NPI number for Eric Nalagan is 1033287610. It was assigned to this individual provider in the NPPES registry on December 1, 2006.
Where is Eric Nalagan located?
Eric Nalagan practices at 2125 Bluestone Dr Ste B, Saint Charles, MO 63303. The listed phone number is (636) 688-3572.
What is Eric Nalagan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Eric Nalagan enrolled in Medicare?
Yes. Eric Nalagan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Eric Nalagan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eric Nalagan reassigns Medicare benefits to Ssm Medical Group, Inc. (O Fallon, 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 Eric Nalagan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Eric Nalagan was last updated on October 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.