Derek Larson, M.D.
NPI 1588820096 · Nephrology Physician · Creve Coeur, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Larson, M.D. is a Nephrology Physician provider in Creve Coeur, MO (NPI 1588820096).
Provider details
- NPI number
- 1588820096
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036126443 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
1,424 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 402 | $112 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 240 | $86 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 188 | $330 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 130 | $121 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 91 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 105 | 35 |
| Dapagliflozin Propanediolbrand: Farxiga | 90 | 24 |
| Losartan Potassium | 70 | 22 |
| Lisinopril | 54 | 16 |
| Torsemide | 48 | 15 |
| Sodium Bicarbonate | 36 | — |
| Calcitriol | 35 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$138,608 across 186 records (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
- 2008-08-04
- Last updated
- 2023-10-16
- Certified
- 2023-10-16
Frequently asked questions
- What is Derek Larson's NPI number?
- Derek Larson's National Provider Identifier (NPI) is 1588820096, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Larson's specialty?
- Derek Larson is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Larson located?
- Derek Larson's practice location on file with NPPES is 456 N New Ballas Rd Ste 348, Creve Coeur, MO 63141-6846.
- What is Derek Larson's phone number?
- The practice phone number listed in the NPPES registry for Derek Larson is (314) 548-0265.
- Does Derek Larson accept Medicare?
- Derek Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Larson's NPI active?
- Yes — Derek Larson's NPI (1588820096) is active in the NPPES registry as of the last update on 2023-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.