Leann Bassing, M.D.
NPI 1871784124 · Rheumatology Physician · Yankton, SD
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leann Bassing, M.D. is a Rheumatology Physician provider in Yankton, SD (NPI 1871784124).
Provider details
- NPI number
- 1871784124
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 8398 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,412 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 435 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 373 | $122 |
| Blood Creatinine Level82565 | 365 | $5 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 296 | $8 |
| Liver Enzyme (sgot), Level84450 | 295 | $5 |
| Liver Enzyme (sgpt), Level84460 | 295 | $5 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 510 | 133 |
| Methotrexate Sodiumbrand: Methotrexate | 475 | 114 |
| Allopurinol | 358 | 75 |
| Prednisone | 193 | 69 |
| Sulfasalazine | 106 | 29 |
| Duloxetine Hcl | 63 | 18 |
| Leflunomide | 56 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-01
- Last updated
- 2020-06-24
- Certified
- 2020-06-24
Frequently asked questions
- What is Leann Bassing's NPI number?
- Leann Bassing's National Provider Identifier (NPI) is 1871784124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leann Bassing's specialty?
- Leann Bassing is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Leann Bassing located?
- Leann Bassing's practice location on file with NPPES is 1104 W 8th St, Yankton, SD 57078-3306.
- What is Leann Bassing's phone number?
- The practice phone number listed in the NPPES registry for Leann Bassing is (605) 665-7841.
- Does Leann Bassing accept Medicare?
- Leann Bassing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leann Bassing's NPI active?
- Yes — Leann Bassing's NPI (1871784124) is active in the NPPES registry as of the last update on 2020-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.