ISABELLE JOFFER CNP
NPI 1073379483
Nurse Practitioner in Sioux Falls, SD

Active since February 23, 2024PECOS EnrolledAccepts Medicare Assignment
1000 E 23RD ST STE 230, SIOUX FALLS, SD 57105(605) 322-6900(605) 322-6901 Get Directions Write a Review

NPPES record last updated: February 23, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Isabelle Joffer Cnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ISABELLE JOFFER CNP (NPI 1073379483) is an individual nurse practitioner in Sioux Falls, South Dakota, licensed in South Dakota (CP003110) and active in the NPI registry since February 2024. She is enrolled in Medicare PECOS, is affiliated with Avera Mckennan Hospital & University Health Center, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1073379483
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameISABELLE JOFFERCredential: CNP
Location Address1000 E 23RD ST STE 230Sioux Falls, SD 57105-2122
Mailing Address1000 E 23rd St Ste 230Sioux Falls, SD 57105-2122 · (605) 322-6900 · Fax (605) 322-6901
Fax(605) 322-6901
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateFebruary 23, 2024
NPPES CertifiedFebruary 23, 2024
NPI 1073379483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in SD · CP003110
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
1000 E 23RD ST STE 230, Sioux Falls, SD 57105

Other Names 1

Former Name (1)Isabelle Loudenslager

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

Isabelle Joffer 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 ID7214377183
PECOS Enrollment IDI20250228000851
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.

Areas of Expertise CMS Part B claims 2

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
13 services13 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

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

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.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Hematology & Oncology)
1000 E 23RD ST STE 230
SIOUX FALLS, SD 57105
Physician Assistant
1000 E 23RD ST STE 230
SIOUX FALLS, SD 57105
Internal Medicine (Hematology & Oncology)
1000 E 23RD ST STE 230
SIOUX FALLS, SD 57105
Internal Medicine (Hematology & Oncology)
1000 E 23RD ST STE 230
SIOUX FALLS, SD 57105
Nurse Practitioner (Family)
1000 E 23RD ST STE 230
SIOUX FALLS, SD 57105

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 Isabelle Joffer's NPI number?

The NPI number for Isabelle Joffer is 1073379483. It was assigned to this individual provider in the NPPES registry on February 23, 2024. The provider is also known as Isabelle Loudenslager.

Where is Isabelle Joffer located?

Isabelle Joffer practices at 1000 E 23rd St Ste 230, Sioux Falls, SD 57105. The listed phone number is (605) 322-6900.

What is Isabelle Joffer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Isabelle Joffer enrolled in Medicare?

Yes. Isabelle Joffer 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.

What insurance does Isabelle Joffer accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and Avera Health Plans and 1 other insurer list Isabelle Joffer 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 Isabelle Joffer affiliated with any hospitals?

According to CMS data, Isabelle Joffer is affiliated with Avera Mckennan Hospital & University Health Center.

When was this NPI record last updated?

The NPPES record for Isabelle Joffer was last updated on February 23, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.