CHELSEA J TWAMLEY CNP
NPI 1760615074
Nurse Practitioner - Family in Sioux Falls, SD

Active since September 02, 2009PECOS EnrolledAccepts Medicare Assignment
94/100
CMS Quality Rating
3801 S ELMWOOD AVE, SIOUX FALLS, SD 57105(605) 306-6100 Get Directions Write a Review

NPPES record last updated: June 19, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 19, 2025, Dec 22, 2022, Aug 7, 2022 and 2 more (5 updates tracked since 2016).

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

NPI1760615074
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameCHELSEA J TWAMLEYCredential: CNP
Location Address3801 S ELMWOOD AVESioux Falls, SD 57105-6565
Mailing Address3801 S Elmwood AveSioux Falls, SD 57105-6565 · (605) 306-6100 · Fax (605) 306-6500
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateSeptember 2, 2009
Last NPPES UpdateJune 19, 20255 updates tracked since enumeration
NPPES CertifiedJune 19, 2025
NPI 1760615074 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
Licenses Licensed in SD · CP000563 Licensed in VT · 101.0108558
Also ListedNurse PractitionerTaxonomy 363L00000X · License CP000563 (SD)
3801 S ELMWOOD AVE, Sioux Falls, SD 57105

Other Names 1

Former Name (1)Chelsea J Golden

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

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.

PECOS PAC ID42366734
PECOS Enrollment IDI20180926000979
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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, SD
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number430008
Location300 22nd AveBrookings, SD 57006 · Brookings County
Emergency services Birthing friendly

Avera Sacred Heart Hospital

Acute Care Hospitals · Yankton, SD
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430012
Location501 Summit StYankton, SD 57078 · Yankton County
Emergency services Birthing friendly

Avera Mckennan Hospital & University Health Center

Acute Care Hospitals · Sioux Falls, SD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430016
Location1325 S Cliff AveSioux Falls, SD 57117 · Minnehaha County
Emergency services Birthing friendly

Madison Regional Health System

Critical Access Hospitals · Madison, SD
OwnershipVoluntary non-profit - Private
CMS Certification Number431300
Location323 SW 10th StMadison, SD 57042 · Lake County
Emergency services

Physician 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.

New Patient
$85.21 typical visit price
range $55.52 – $167.23
Typical copayment $21.30 (range $13.88 – $41.80)
Most-billed visit code 99203
Established Patient
$97.88 typical visit price
range $18.08 – $137.08
Typical copayment $24.47 (range $4.52 – $34.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

94/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Quality84.79
Promoting Interoperability98.22
Improvement Activities40

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.

Clinic/Center (Ambulatory Surgical)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Surgery (Vascular Surgery)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Surgery (Vascular Surgery)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Surgery (Vascular Surgery)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Nurse Practitioner (Family)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Nurse Practitioner (Family)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Surgery (Vascular Surgery)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105
Nurse Practitioner (Family)
3801 S ELMWOOD AVE
SIOUX FALLS, SD 57105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760615074, enumerated as an "individual" on September 02, 2009.

The provider is located at 3801 S ELMWOOD AVE SIOUX FALLS, SD 57105 and the phone number is (605) 306-6100.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.

The provider might be accepting Accepts: Ambetter from Home State Health, Ambetter from. Please consult your insurance carrier or call the provider to verify.

Chelsea Twamley is affiliated with: BROOKINGS HEALTH SYSTEM, AVERA SACRED HEART HOSPITAL, AVERA MCKENNAN HOSPITAL & UNIVERSITY HEALTH CENTER and MADISON REGIONAL HEALTH SYSTEM.