James Larson, MD
NPI 1174542724 · Diagnostic Radiology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Larson, MD is a Diagnostic Radiology Physician provider in Grand Rapids, MI (NPI 1174542724).
Provider details
- NPI number
- 1174542724
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301406106 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
1,788 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 284 | $8 |
| Limited Ultrasound Scan of Abdomen76705 | 264 | $26 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 209 | $33 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 182 | $20 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 108 | $31 |
| X-Ray of Chest, 2 Views71046 | 80 | $10 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$137 across 1 record (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
- 2006-07-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Larson's NPI number?
- James Larson's National Provider Identifier (NPI) is 1174542724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Larson's specialty?
- James Larson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Larson located?
- James Larson's practice location on file with NPPES is 3264 N Evergreen Dr Ne, Grand Rapids, MI 49525-9746.
- What is James Larson's phone number?
- The practice phone number listed in the NPPES registry for James Larson is (616) 363-7272.
- Does James Larson accept Medicare?
- James Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Larson's NPI active?
- Yes — James Larson's NPI (1174542724) 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.