CHELSEA J TWAMLEY CNP
NPI 1760615074
Nurse Practitioner - Family in Sioux Falls, SD
About Chelsea J Twamley Cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHELSEA J TWAMLEY CNP (NPI 1760615074) is an individual family provider in Sioux Falls, South Dakota, licensed in South Dakota (CP000563) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS, is affiliated with Brookings Health System, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
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
Chelsea J Twamley Cnp 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
4Medicare enrollment records show Chelsea Twamley reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sioux Falls, SD 57105
- Reassigned Medicare billing, Minnesota and South Dakota enrollments
- 2 clinicians in this Medicare group
Sioux Falls, SD 57105
- Reassigned Medicare billing, Minnesota enrollment
- 103 clinicians in this Medicare group
Canton, SD 57013
- Reassigned Medicare billing, South Dakota enrollment
- 422 clinicians in this Medicare group
Worthington, MN 56187
- Reassigned Medicare billing, Minnesota enrollment
- 260 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brookings Health System
Acute Care Hospitals · Brookings, SDAvera Sacred Heart Hospital
Acute Care Hospitals · Yankton, SDAvera Mckennan Hospital & University Health Center
Acute Care Hospitals · Sioux Falls, SDMadison Regional Health System
Critical Access Hospitals · Madison, SDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57105 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 8
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 Chelsea Twamley's NPI number?
The NPI number for Chelsea Twamley is 1760615074. It was assigned to this individual provider in the NPPES registry on September 2, 2009. The provider is also known as Chelsea J Golden.
Where is Chelsea Twamley located?
Chelsea Twamley practices at 3801 S Elmwood Ave, Sioux Falls, SD 57105. The listed phone number is (605) 306-6100.
What is Chelsea Twamley's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Chelsea Twamley enrolled in Medicare?
Yes. Chelsea Twamley 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 Chelsea Twamley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chelsea Twamley reassigns Medicare benefits to 4 organizations: Dakota Vascular Prof LLC (Sioux Falls, SD), Sanford Clinic (Sioux Falls, SD), Sanford Health Network (Canton, SD) and Avera Marshall (Worthington, MN). 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 Chelsea Twamley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chelsea Twamley accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Sanford Health Plan and Security Health Plan and 2 other insurers list Chelsea Twamley 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 Chelsea Twamley affiliated with any hospitals?
According to CMS data, Chelsea Twamley is affiliated with Brookings Health System, Avera Sacred Heart Hospital, Avera Mckennan Hospital & University Health Center and Madison Regional Health System.
When was this NPI record last updated?
The NPPES record for Chelsea Twamley was last updated on June 19, 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.
# Chelsea J Twamley, CNP · NPI 1760615074
Family physician in Sioux Falls, South Dakota. Individual provider, active in the CMS NPPES registry since September 2, 2009.
## Identity
- **NPI:** 1760615074 (Entity type: Individual)
- **Enumerated:** September 2, 2009
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** CP000563 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 3801 S ELMWOOD AVE, Sioux Falls, SD 57105-6565
- **Phone:** (605) 306-6100
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Dakota Vascular Prof LLC (NPI 1407591258, Sioux Falls, SD); Sanford Clinic (NPI 1235439506, Sioux Falls, SD); Sanford Health Network (NPI 1033140454, Canton, SD); Avera Marshall (NPI 1417378555, Worthington, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** June 19, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1760615074) · Data from the CMS NPPES public registry.