Derek Sloan Larson, M.D.
NPI 1588820096ActiveIndividual· Internal Medicine, Nephrology· Creve Coeur, MO
Internal Medicine, Nephrology (M.D.) with St Louis Kidney LLC, practicing in Creve Coeur, Missouri. In 2024 Medicare paid $159,506 for 581 patients, and Part D covered 934 of their prescriptions, 84% of them generic. Travere Therapeutics, Inc. was the largest of 11 companies reporting payments in 2025, $45,463 in all, mostly consulting fees. Lists Barnes Jewish Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1588820096 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 4, 2008 |
| Last updated in NPPES | Oct 16, 2023 |
| Certified by provider | Oct 16, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2014016671 | MO |
| Internal Medicine, Nephrology | 207RN0300X | 036126443 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (IL); Practitioner - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 581 |
|---|---|
| Services billed | 1,454 across 19 procedure codes |
| Paid by Medicare | $159,506 |
Part D prescriptions in 2024
| Prescriptions (claims) | 934 · 1,567 30-day fills |
|---|---|
| Patients | 202 |
| Total drug cost | $121,391 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- St Louis Kidney LLCCreve Coeur, MO · 9 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Mercy Hospital St LouisSaint Louis, MO
- Missouri Baptist Medical CenterSaint Louis, MO
- Ste Genevieve County Memorial HospitalSainte Genevieve, MO
Other facilities
- Davita Crystal City Dialysis CenterDialysis facility · Festus, MO
- Davita St. Louis West Home Training (Pd)Dialysis facility · Olivette, MO
- Davita St.Louis West DialysisDialysis facility · Saint Louis, MO
- Davita Town and Country West DialysisDialysis facility · Saint Louis, MO
Industry payments (Open Payments)
- 2025$45,463 · 86 payments from 11 companies
- 2024$138,608 · 198 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $33,729 | 50 |
| Astrazeneca Pharmaceuticals LP | $7,465 | 15 |
| Fresenius USA Marketing, Inc. | $3,798 | 6 |
| Alexion Pharmaceuticals, Inc. | $175.00 | 1 |
| Otsuka America Pharmaceutical, Inc. | $120.64 | 6 |
What the 2025 payments were for
- Consulting Fee$20,575 · 8 payments
- Compensation for serving as faculty or as a speaker for a medical education program$9,600 · 4 payments
- Travel and Lodging$6,953 · 17 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$5,850 · 2 payments
- Food and Beverage$2,464 · 54 payments
- Education$21.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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