ELLEN ELIZABETH HOPPER MD
NPI 1487850913
Obstetrics & Gynecology in Brookings, SD
About Ellen Elizabeth Hopper Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN ELIZABETH HOPPER MD (NPI 1487850913) is an individual obstetrics & gynecology provider in Brookings, South Dakota, licensed in South Dakota (8120) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Ellen Elizabeth Hopper Md 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
3Medicare enrollment records show Ellen Hopper reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brookings, SD 57006
- Reassigned Medicare billing, South Dakota enrollment
- 826 clinicians in this Medicare group
Estelline, SD 57234
- Reassigned Medicare billing, South Dakota enrollment
- 1,097 clinicians in this Medicare group
Clear Lake, SD 57226
- Reassigned Medicare billing, South Dakota enrollment
- Also billed through NPI 1134140825 (South Dakota)
- 422 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 57006 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Ellen Hopper's NPI number?
The NPI number for Ellen Hopper is 1487850913. It was assigned to this individual provider in the NPPES registry on June 22, 2007. The provider is also known as Ellen Elizabeth Gormley MD.
Where is Ellen Hopper located?
Ellen Hopper practices at 400 22nd Ave, Brookings, SD 57006. The listed phone number is (605) 697-9500.
What is Ellen Hopper's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Ellen Hopper enrolled in Medicare?
Yes. Ellen Hopper 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 Ellen Hopper's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Hopper reassigns Medicare benefits to 3 organizations: Sanford Clinic (Brookings, SD), Sanford Medical Center (Estelline, SD) and Sanford Health Network (Clear Lake, SD). 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 Ellen Hopper's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ellen Hopper accept?
Health plans from Blue Cross Blue Shield of North Dakota, Oscar Insurance Company, Sanford Health Plan, Security Health Plan and Wellmark of South Dakota, Inc. list Ellen Hopper 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 Ellen Hopper was last updated on February 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Ellen Elizabeth Hopper, MD · NPI 1487850913
Obstetrics & Gynecology physician in Brookings, South Dakota. Individual provider, active in the CMS NPPES registry since June 22, 2007.
## Identity
- **NPI:** 1487850913 (Entity type: Individual)
- **Enumerated:** June 22, 2007
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 8120 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 22ND AVE, Brookings, SD 57006-2497
- **Phone:** (605) 697-9500
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Sanford Clinic (NPI 1043241466, Brookings, SD); Sanford Medical Center (NPI 1548230683, Estelline, SD); Sanford Health Network (NPI 1720129638, Clear Lake, SD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** February 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1487850913) · Data from the CMS NPPES public registry.