Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Rebecca Lynn Immonen-Sage, PA-C

Individual provider Physician Assistant · NPI 1205120821

Rebecca Lynn Immonen-Sage, PA-C is a Physician Assistant in Sioux Falls, South Dakota. Qualified in 2011, 15 years ago. Practices with Heart Hospital of South Dakota LLC, a 67-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Minnesota and South Dakota.

Years since qualifying
15
Licensed in
MN, SD
In the registry since
2011
Specialties on file
3
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

4520 W 69th St
Sioux Falls, SD 57108-8148
Phone: (605) 977-5000
Fax: (605) 977-5377
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1200 6th Ave N, Saint Cloud, MN 56303-2735 — (320) 656-7020

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 1376 (SD)
Physician Assistant Taxonomy 363A00000X · Licence 11007 (MN)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 11007 (MN)

Record details

NPI number1205120821
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedMay 31, 2011
Last updated in NPPESMay 16, 2025
Certification dateMay 16, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Heart Hospital Of South Dakota Llc — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients87
Services billed 157 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $369 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $361 9 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Heart Hospital of South Dakota LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 67 clinicians in the practice; 12 are shown here.

Other providers in Sioux Falls