Eric Larson, M.D.
NPI 1134124019 · Internal Medicine Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Larson, M.D. is a Internal Medicine Physician provider in Sioux Falls, SD (NPI 1134124019).
Provider details
- NPI number
- 1134124019
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4727 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,665 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,017 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 808 | $92 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 692 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 79 | $62 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 38 | $136 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 127 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 725 | 195 |
| Atorvastatin Calcium | 498 | 126 |
| Levothyroxine Sodium | 453 | 101 |
| Amlodipine Besylate | 369 | 87 |
| Metoprolol Succinate | 361 | 94 |
| Omeprazole | 333 | 87 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-16
- Last updated
- 2022-02-03
- Certified
- 2022-02-03
Frequently asked questions
- What is Eric Larson's NPI number?
- Eric Larson's National Provider Identifier (NPI) is 1134124019, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Larson's specialty?
- Eric Larson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Larson located?
- Eric Larson's practice location on file with NPPES is 1205 S Grange Ave, Sioux Falls, SD 57105-0410.
- What is Eric Larson's phone number?
- The practice phone number listed in the NPPES registry for Eric Larson is (605) 328-7500.
- Does Eric Larson accept Medicare?
- Eric Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Larson's NPI active?
- Yes — Eric Larson's NPI (1134124019) is active in the NPPES registry as of the last update on 2022-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.