Isabelle Joffer, CNP
Nurse Practitioner · Sioux Falls, SD
Isabelle Joffer, CNP is a nurse practitioner with a practice address in Sioux Falls, South Dakota, and NPI 1073379483, issued on Feb 23, 2024. Check the license (South Dakota CP003110, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabelle Joffer
- Credential
- CNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- CP003110 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1000 E 23RD St Ste 230, Sioux Falls, SD 57105
- Phone
- (605) 322-6900
- Enumerated
- Feb 23, 2024
- Record last updated
- Feb 23, 2024
- Fax
- (605) 322-6901
- Medicare enrollment
- Enrolled (PECOS I20250228000851); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1000 E 23RD St Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Isabelle Joffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license CP003110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average nurse practitioner in 2024
44 Medicare Part D claims for 16 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $122.29
6 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Avera MckennanSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
239 nurse practitioner records list a practice address in Sioux Falls
They are 239 of the 6,563 NPPES records with a practice address in Sioux Falls, and 465 nurse practitioner records in South Dakota.
All 239 in Sioux Falls → All 465 in South Dakota → Every provider in Sioux Falls →
Other nurse practitioner records in South Dakota
- Melissa Aberle, MS, CNPRapid City, SD1881665891
- Kayla Adamek, NPSioux Falls, SD1144008319
- Logan Adamek, ACNPC-AGSioux Falls, SD1700757382
- Chelsey Ahlers, CNP-BCSioux Falls, SD1639439110
- Lauren Albers, CNPRapid City, SD1245874239
- Emily Andersen, CNPSioux Falls, SD1295021806
- Anna Anderson, NPSioux Falls, SD1881372506
- Darbi Anderson, CNPSpearfish, SD1932774031
- Kelsey Anderson, NP-CSioux Falls, SD1356817126
- Shanna Anderson, CNPAberdeen, SD1669769998
Common questions
What is Isabelle Joffer, CNP's NPI number?
Isabelle Joffer, CNP's National Provider Identifier (NPI) is 1073379483, issued on Feb 23, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Isabelle Joffer, CNP located?
The NPPES record lists a practice address at 1000 E 23RD St Ste 230, Sioux Falls, SD, 57105. Phone: (605) 322-6900. Providers update this record themselves, so call before visiting.
How can I verify Isabelle Joffer, CNP's license?
NPPES lists South Dakota license number CP003110, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Isabelle Joffer, CNP prescribe under Medicare Part D?
In 2024, Isabelle Joffer, CNP had 44 Medicare Part D claims for 16 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.