Quick answers
- Does Darci F. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Darci F. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Darci F. Johnson see?
- In 2024, CMS data shows 42 Original Medicare patients and 89 services for Darci F. Johnson. This counts Original Medicare only and measures volume, not quality.
- What is Darci F. Johnson's NPI number?
- 1144990532. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Darci F. Johnson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 42 |
|---|---|
| Services billed to Medicare | 89 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)16 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)14 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes75%
- Chronic kidney disease75%
- Heart failure62%
- Ischemic heart disease52%
Practice locations
Addresses where Darci F. Johnson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1360 S 5th St, Suite 268Saint Charles, MO 63301 (314) 900‑1112
- 2810 Crossroads DrMadison, WI 53718 (608) 747‑7878
- 9039 Springboro Pike, Suite CMiamisburg, OH 45342 (513) 916‑4128
Group practices
Medicare enrollment lists Darci F. Johnson as a member of these groups (CMS data updated October 2, 2026).
- Gateway Kidney Care II LLC6 clinicians in the group
- Strive Health Ohio LLC5 clinicians in the group
- Wisconsin Kidney Care, S.C.4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Saint Charles
Clinicians with the same Medicare primary specialty in Saint Charles, MO — not a recommendation.
Other clinicians in Gateway Kidney Care II LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1144990532 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians