Gary Swenson, M.D.
NPI 1437102936 · Diagnostic Radiology Physician · Mason City, IA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Swenson, M.D. is a Diagnostic Radiology Physician provider in Mason City, IA (NPI 1437102936).
Provider details
- NPI number
- 1437102936
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 34478 (IA)
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
2,967 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) |
|---|---|---|
| Screening Mammography77067 | 774 | $34 |
| Screening 3d Breast Mammography77063 | 758 | $27 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 435 | $9 |
| X-Ray of Chest, 2 Views71046 | 153 | $10 |
| Interpretation of Trabecular Bone Score (tbs) and Report on Fracture Risk77092 | 108 | $9 |
| X-Ray of Chest, 1 View71045 | 102 | $8 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2021-02-24
- Certified
- 2021-02-24
Frequently asked questions
- What is Gary Swenson's NPI number?
- Gary Swenson's National Provider Identifier (NPI) is 1437102936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Swenson's specialty?
- Gary Swenson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Swenson located?
- Gary Swenson's practice location on file with NPPES is 1010 4th St Sw, Mason City, IA 50401-2857.
- What is Gary Swenson's phone number?
- The practice phone number listed in the NPPES registry for Gary Swenson is (641) 424-0102.
- Does Gary Swenson accept Medicare?
- Gary Swenson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Swenson's NPI active?
- Yes — Gary Swenson's NPI (1437102936) is active in the NPPES registry as of the last update on 2021-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.