NASHIRA SEY M.D.
NPI 1831498377
Obstetrics & Gynecology in St Charles, IL
About Nashira Sey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NASHIRA SEY M.D. (NPI 1831498377) is an individual obstetrics & gynecology provider in St Charles, Illinois, licensed in Illinois (036138724) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, is affiliated with Advocate Good Samaritan Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Nashira Sey M.d. 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 Reassignments
2Medicare enrollment records show Nashira Sey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aurora, IL 60506
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1285903849 (Illinois)
- 383 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Good Samaritan Hospital
Acute Care Hospitals · Downers Grove, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60175 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Nashira Sey's NPI number?
The NPI number for Nashira Sey is 1831498377. It was assigned to this individual provider in the NPPES registry on March 23, 2011.
Where is Nashira Sey located?
Nashira Sey practices at 3310 W Main St Ste 200, St Charles, IL 60175. The listed phone number is (630) 897-6044.
What is Nashira Sey's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Nashira Sey enrolled in Medicare?
Yes. Nashira Sey 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 organizations bill Medicare for Nashira Sey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nashira Sey reassigns Medicare benefits to 2 organizations: Advocate Health And Hospitals Corporation (Aurora, IL) and Central Dupage Physician Group (Carol Stream, IL). 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 Nashira Sey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nashira Sey accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Nashira Sey 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 Nashira Sey affiliated with any hospitals?
According to CMS data, Nashira Sey is affiliated with Advocate Good Samaritan Hospital.
When was this NPI record last updated?
The NPPES record for Nashira Sey was last updated on November 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Nashira Sey, M.D. · NPI 1831498377
Obstetrics & Gynecology physician in St Charles, Illinois. Individual provider, active in the CMS NPPES registry since March 23, 2011.
## Identity
- **NPI:** 1831498377 (Entity type: Individual)
- **Enumerated:** March 23, 2011
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 036138724 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 3310 W MAIN ST STE 200, St Charles, IL 60175-1024
- **Phone:** (630) 897-6044
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Advocate Health And Hospitals Corporation (NPI 1003542184, Aurora, IL); Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** November 18, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1831498377) · Data from the CMS NPPES public registry.