MARIJA GRGIC FNP
NPI 1104303403
Nurse Practitioner - Family in Arnold, MO
About Marija Grgic Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIJA GRGIC FNP (NPI 1104303403) is an individual family provider in Arnold, Missouri, licensed in Missouri (2018022115) and active in the NPI registry since July 2018. She 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)
Marija Grgic Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Marija Grgic reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 744 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 2 clinicians in this Medicare group
Denver, CO 80202
- Reassigned Medicare billing, Missouri enrollment
- 6 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 63010 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 Marija Grgic's NPI number?
The NPI number for Marija Grgic is 1104303403. It was assigned to this individual provider in the NPPES registry on July 19, 2018.
Where is Marija Grgic located?
Marija Grgic practices at 2105 Sante Fe Cir, Arnold, MO 63010. The listed phone number is (314) 602-9242.
What is Marija Grgic's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Marija Grgic enrolled in Medicare?
Yes. Marija Grgic is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marija Grgic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marija Grgic reassigns Medicare benefits to 3 organizations: Mercy Clinic East Communities (Saint Louis, MO), Tatyana Petrosova, MD PC (Saint Louis, MO) and Villagehealth Dm LLC (Denver, CO). 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 Marija Grgic'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 Marija Grgic was last updated on July 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.