SIERRA S HIESTAND
NPI 1689569246
Nurse Practitioner - Family in Mount Vernon, IL
About Sierra S Hiestand NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIERRA S HIESTAND (NPI 1689569246) is an individual family provider in Mount Vernon, Illinois, licensed in Illinois (209.032507) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS, is affiliated with Good Samaritan Regional Hlth Center, and is a graduate of Other (2025).
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 and accepts Medicare assignment
Sierra S Hiestand 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 Reassignment
Medicare enrollment records show Sierra Hiestand reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Vernon, IL 62864
- Reassigned Medicare billing, Illinois enrollment
- 296 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Regional Hlth Center
Acute Care Hospitals · Mount Vernon, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62864 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
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 Sierra Hiestand's NPI number?
The NPI number for Sierra Hiestand is 1689569246. It was assigned to this individual provider in the NPPES registry on June 12, 2025.
Where is Sierra Hiestand located?
Sierra Hiestand practices at 4103 S Water Tower Pl, Mount Vernon, IL 62864. The listed phone number is (618) 899-3500.
What is Sierra Hiestand's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Sierra Hiestand enrolled in Medicare?
Yes. Sierra Hiestand 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 organization bills Medicare for Sierra Hiestand's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sierra Hiestand reassigns Medicare benefits to Physician Services Corporation Of Southern Illinois Inc. (Mount Vernon, IL). 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 Sierra Hiestand's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sierra Hiestand accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Sierra Hiestand 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 Sierra Hiestand affiliated with any hospitals?
According to CMS data, Sierra Hiestand is affiliated with Good Samaritan Regional Hlth Center.
When was this NPI record last updated?
The NPPES record for Sierra Hiestand was last updated on June 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Sierra S Hiestand · NPI 1689569246
Family physician in Mount Vernon, Illinois. Individual provider, active in the CMS NPPES registry since June 12, 2025.
## Identity
- **NPI:** 1689569246 (Entity type: Individual)
- **Enumerated:** June 12, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209.032507 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 4103 S WATER TOWER PL, Mount Vernon, IL 62864-6293
- **Phone:** (618) 899-3500
## 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:** Physician Services Corporation Of Southern Illinois Inc. (NPI 1831101807, Mount Vernon, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** June 12, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1689569246) · Data from the CMS NPPES public registry.