MRS. MARIANNA V SIERACKI PA-C
NPI 1659786374
Physician Assistant in Fond Du Lac, WI
About Mrs. Marianna V Sieracki Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARIANNA V SIERACKI PA-C (NPI 1659786374) is an individual physician assistant in Fond Du Lac, Wisconsin, licensed in Wisconsin (3334) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Med Ctr - Neenah, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Marianna V Sieracki Pa-c 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.
Areas of Expertise CMS Part B claims 2
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.
Thedacare Regional Med Ctr - Neenah
Acute Care Hospitals · Neenah, WIThedacare Regional Medical Center - Appleton Inc
Acute Care Hospitals · Appleton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54935 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FOND DU LAC, WI 54935
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 Marianna Sieracki's NPI number?
The NPI number for Marianna Sieracki is 1659786374. It was assigned to this individual provider in the NPPES registry on June 23, 2014. The provider is also known as Miss Marianna Druzhinina PA.
Where is Marianna Sieracki located?
Marianna Sieracki practices at 430 E Division St, Fond Du Lac, WI 54935. The listed phone number is (920) 929-2300.
What is Marianna Sieracki's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Marianna Sieracki enrolled in Medicare?
Yes. Marianna Sieracki 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.
What insurance does Marianna Sieracki accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), HealthPartners, Network Health and Quartz and 1 other insurer list Marianna Sieracki 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 Marianna Sieracki affiliated with any hospitals?
According to CMS data, Marianna Sieracki is affiliated with Thedacare Regional Med Ctr - Neenah and Thedacare Regional Medical Center - Appleton Inc.
When was this NPI record last updated?
The NPPES record for Marianna Sieracki was last updated on June 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days 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.
