MARINA FISCHER
NPI 1750700928
Nurse Practitioner - Family in Saint Louis, MO
About Marina Fischer NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARINA FISCHER (NPI 1750700928) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2014006849) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS.
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 (PECOS)
Marina Fischer is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Marina Fischer 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 63117
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 744 clinicians in this Medicare group
Fenton, MO 63026
- 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.
Areas of Expertise CMS Part B claims
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
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
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 Marina Fischer's NPI number?
The NPI number for Marina Fischer is 1750700928. It was assigned to this individual provider in the NPPES registry on April 15, 2014.
Where is Marina Fischer located?
Marina Fischer practices at 1120 S 6th St Ste 110, Saint Louis, MO 63104. The listed phone number is (314) 203-2627.
What is Marina Fischer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Marina Fischer enrolled in Medicare?
Yes. Marina Fischer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marina Fischer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marina Fischer reassigns Medicare benefits to 3 organizations: Ssm Health Care St. Louis (Saint Louis, MO), Mercy Clinic East Communities (Saint Louis, MO) and Ssm Medical Group, Inc. (Fenton, MO). 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 Marina Fischer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marina Fischer accept?
Health plans from UnitedHealthcare list Marina Fischer 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 Marina Fischer was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.