Seth Larson, MD
NPI 1255302352 · Neurology Physician · Sun City, AZ
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seth Larson, MD is a Neurology Physician provider in Sun City, AZ (NPI 1255302352).
Provider details
- NPI number
- 1255302352
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2006 01761 (NC)
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
20 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
224 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 73 | $111 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 47 | $162 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 41 | $53 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 30 | $169 |
| Critical Care, First 30-74 Minutes99291 | 22 | $198 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-28
- Last updated
- 2008-02-08
Frequently asked questions
- What is Seth Larson's NPI number?
- Seth Larson's National Provider Identifier (NPI) is 1255302352, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Larson's specialty?
- Seth Larson is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Seth Larson located?
- Seth Larson's practice location on file with NPPES is 10474 W Thunderbird Blvd, Sun City, AZ 85351-3015.
- What is Seth Larson's phone number?
- The practice phone number listed in the NPPES registry for Seth Larson is (623) 972-3800.
- Does Seth Larson accept Medicare?
- Seth Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seth Larson's NPI active?
- Yes — Seth Larson's NPI (1255302352) is active in the NPPES registry as of the last update on 2008-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.