Lonnie Simmons, MD
NPI 1851395735 · Diagnostic Radiology Physician · La Crosse, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lonnie Simmons, MD is a Diagnostic Radiology Physician provider in La Crosse, WI (NPI 1851395735).
Provider details
- NPI number
- 1851395735
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 40661 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
1,330 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) |
|---|---|---|
| X-Ray of Chest, 2 Views71046 | 199 | $10 |
| X-Ray of Chest, 1 View71045 | 188 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 118 | $37 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 98 | $80 |
| X-Ray of Chest, 2 Views71046 | 93 | $10 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 40 | $79 |
| Ct Scan of Abdomen and Pelvis Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-09
- Last updated
- 2015-09-22
Frequently asked questions
- What is Lonnie Simmons's NPI number?
- Lonnie Simmons's National Provider Identifier (NPI) is 1851395735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lonnie Simmons's specialty?
- Lonnie Simmons is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Lonnie Simmons located?
- Lonnie Simmons's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Lonnie Simmons's phone number?
- The practice phone number listed in the NPPES registry for Lonnie Simmons is (608) 782-7300.
- Does Lonnie Simmons accept Medicare?
- Lonnie Simmons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lonnie Simmons's NPI active?
- Yes — Lonnie Simmons's NPI (1851395735) is active in the NPPES registry as of the last update on 2015-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.