Eric Larson, MD
NPI 1366550220 · Emergency Medicine Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Larson, MD is a Emergency Medicine Physician provider in Charleston, SC (NPI 1366550220).
Provider details
- NPI number
- 1366550220
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 20506 (SC)
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
19 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
933 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 296 | $165 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 249 | $114 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 130 | $101 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 91 | $70 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 65 | $67 |
| Removal of Skin and Tissue, 20.0 Sq Cm Or Less11042 | 36 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 46 | 46 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 41 | 41 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 41 | 40 |
| Methylprednisolone | 40 | 39 |
| Ondansetron Hcl | 31 | 31 |
| Ibuprofen | 30 | 30 |
| Ciprofloxacin Hcl | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Eric Larson's NPI number?
- Eric Larson's National Provider Identifier (NPI) is 1366550220, 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 Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Larson located?
- Eric Larson's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-0001.
- What is Eric Larson's phone number?
- The practice phone number listed in the NPPES registry for Eric Larson is (843) 792-1414.
- 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 (1366550220) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.