Rebecca Lynn Immonen-Sage, PA-C
Physician Assistant · Sioux Falls, SD
Rebecca Lynn Immonen-Sage, PA-C is a physician assistant with a practice address in Sioux Falls, South Dakota, and NPI 1205120821, issued on May 31, 2011. Check the license (South Dakota 1376, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rebecca Lynn Immonen-Sage
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 1376 SD
11007 MN
Self-reported in NPPES; status is on the state search - Practice location
- 4520 W 69TH St, Sioux Falls, SD 57108
- Phone
- (605) 977-5000
- Enumerated
- May 31, 2011
- Record last updated
- May 16, 2025
- Fax
- (605) 977-5377
- Medicare enrollment
- Enrolled (PECOS I20221116003280); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 674 in South Dakota → Look up another NPI →
Also registered at 4520 W 69TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rebecca Lynn Immonen-Sage 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 1376Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average physician assistant in 2024
380 Medicare Part D claims for 114 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 38 claims were for opioids.
Most prescribed
- Clopidogrel74 claims
- Metoprolol Tartrate35 claims
- Hydrocodone-Acetaminophen29 claims
- Furosemide25 claims
- Metoprolol Succinate25 claims
- Potassium Chloride23 claims
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $509.38
13 payments; by number, the most common kind was food and beverage; the largest payer was Getinge USA Sales, LLC. The 64,719 providers of this specialty with any payment received $841.65 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
- Heart Hospital OF South Dakota LLCSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca Lynn Immonen-Sage among 674 physician assistant records in South Dakota
Rebecca Lynn Immonen-Sage, PA-C is one of 674 physician assistant records with a practice address in South Dakota. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 45% of them.
- NPI issued2011 · 45% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2014 among the 482 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
245 physician assistant records list a practice address in Sioux Falls
They are 245 of the 6,563 NPPES records with a practice address in Sioux Falls, and 674 physician assistant records in South Dakota.
All 674 in South Dakota → Every provider in Sioux Falls → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Danette Baumann, P.A.Sioux Falls, SD 571081699915819
- Cheryle Brandt, PA-CSioux Falls, SD 571081457338543
- Amber Chambers, PA-CSioux Falls, SD 571081497720254
- Kathrine Jibben, PA-CSioux Falls, SD 571081841320983
- Marsha Kadlecik, PA-CSioux Falls, SD 571081932239902
- Benjamin Klinkhammer, PA-CSioux Falls, SD 571081326012121
- Virginia Lemme, PACSioux Falls, SD 571081346293610
- Karl Oehlke, PASioux Falls, SD 571081497727929
Common questions
What is Rebecca Lynn Immonen-Sage, PA-C's NPI number?
Rebecca Lynn Immonen-Sage, PA-C's National Provider Identifier (NPI) is 1205120821, issued on May 31, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Lynn Immonen-Sage, PA-C located?
The NPPES record lists a practice address at 4520 W 69TH St, Sioux Falls, SD, 57108. Phone: (605) 977-5000. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Lynn Immonen-Sage, PA-C's license?
NPPES lists South Dakota license number 1376, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Rebecca Lynn Immonen-Sage, PA-C prescribe under Medicare Part D?
In 2024, Rebecca Lynn Immonen-Sage, PA-C had 380 Medicare Part D claims for 114 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Rebecca Lynn Immonen-Sage, PA-C's MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.