Charles Flohr, MD
NPI 1306808738 · Diagnostic Radiology Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Flohr, MD is a Diagnostic Radiology Physician provider in Sioux Falls, SD (NPI 1306808738).
Provider details
- NPI number
- 1306808738
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2551 (SD)
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
4,375 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, 1 View71045 | 908 | $8 |
| X-Ray of Chest, 2 Views71046 | 884 | $10 |
| X-Ray of Chest, 2 Views71046 | 442 | $10 |
| X-Ray of Abdomen, 1 View74018 | 314 | $8 |
| Imaging for Evaluation of Swallowing Function74230 | 263 | $24 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 262 | $33 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-03
- Last updated
- 2022-03-25
- Certified
- 2022-03-25
Frequently asked questions
- What is Charles Flohr's NPI number?
- Charles Flohr's National Provider Identifier (NPI) is 1306808738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Flohr's specialty?
- Charles Flohr is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Flohr located?
- Charles Flohr's practice location on file with NPPES is 1210 W 18th St, Sioux Falls, SD 57104-4647.
- What is Charles Flohr's phone number?
- The practice phone number listed in the NPPES registry for Charles Flohr is (605) 328-1410.
- Does Charles Flohr accept Medicare?
- Charles Flohr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Flohr's NPI active?
- Yes — Charles Flohr's NPI (1306808738) is active in the NPPES registry as of the last update on 2022-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.