Leann Bassing, M.D.
Rheumatology Physician · Yankton, SD
Leann Bassing, M.D. is a rheumatology physician with a practice address in Yankton, South Dakota, and NPI 1871784124, issued on Aug 1, 2007. Check the license (South Dakota 8398, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Leann Bassing
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 8398 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1104 W 8TH St, Yankton, SD 57078
- Phone
- (605) 665-7841
- Enumerated
- Aug 1, 2007
- Record last updated
- Jun 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (605) 665-0546
- Medicare enrollment
- Enrolled (PECOS I20120807000521); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2007
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 17 in South Dakota → Look up another NPI →
Also registered at 1104 W 8TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brent Adams, MDOrthopaedic Surgery Physician1093930521
- Cassandra Arens, PAPhysician Assistant1033522966
- Sarah ArensPhysician Assistant1669912291
- Amber Authier, PA-CMedical Physician Assistant1518679851
- Clarissa Barnes, M.D.Internal Medicine Physician1770758757
- Betty Bisgard, CRNACertified Registered Nurse Anesthetist1265508162
Verify Leann Bassing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 8398Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average rheumatology physician in 2024
2,132 Medicare Part D claims for 351 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Hydroxychloroquine Sulfate510 claims
- Methotrexate475 claims
- Allopurinol358 claims
- Prednisone193 claims
- Sulfasalazine106 claims
- Duloxetine Hcl63 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.
Industry payments in 2024: $19.05
1 payment: food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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 2 group practices
- Sacred Heart Health ServicesYankton, SD
- Yankton Medical Clinic PCYankton, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leann Bassing among 17 rheumatology physician records in South Dakota
Leann Bassing, M.D. is one of 17 rheumatology physician records with a practice address in South Dakota. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 53% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2007 · median 2011 among the 12 with a school on file
- Record last updated2020 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in South Dakota
There are 17 rheumatology physician records in South Dakota.
All 17 in South Dakota → Every provider in Yankton → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Wais Afzal, M.D.Sioux Falls, SD 571051710377544
- Baker Alkhairi, M.B.B.CH.Sioux Falls, SD 571051720519093
- Eduardo Bonilla Trejos, M.D.Sioux Falls, SD 571051972709004
- Vivek Joseph, MDSioux Falls, SD 571051669888566
- Kelly Delaney-Nelson, M.D.Dakota Dunes, SD 570491356752067
- Joseph Fanciullo, MDSioux Falls, SD 571081437182516
- Christine Halligan, MDSioux Falls, SD 571081871526962
- Kelsey Holkesvik, MDSioux Falls, SD 571081962899088
Common questions
What is Leann Bassing, M.D.'s NPI number?
Leann Bassing, M.D.'s National Provider Identifier (NPI) is 1871784124, issued on Aug 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leann Bassing, M.D. located?
The NPPES record lists a practice address at 1104 W 8TH St, Yankton, SD, 57078. Phone: (605) 665-7841. Providers update this record themselves, so call before visiting.
How can I verify Leann Bassing, M.D.'s license?
NPPES lists South Dakota license number 8398, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leann Bassing, M.D. prescribe under Medicare Part D?
In 2024, Leann Bassing, M.D. had 2,132 Medicare Part D claims for 351 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.