Quick answers
- Does Mary J. Drenon accept Medicare assignment?
- Yes. Medicare's clinician data says Mary J. Drenon 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 Mary J. Drenon see?
- In 2024, CMS data shows 234 Original Medicare patients and 417 services for Mary J. Drenon. This counts Original Medicare only and measures volume, not quality.
- What is Mary J. Drenon's NPI number?
- 1790434413. 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 Mary J. Drenon, 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 | 234 |
|---|---|
| Services billed to Medicare | 417 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)218 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)81 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)29 services
- Injection of drug or substance under skin or into muscle (96372)13 services
- Removal of impacted ear wax by washing (69209)11 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 cholesterol69%
- Arthritis46%
- Diabetes31%
- Ischemic heart disease28%
- Depression26%
Hospitals where Mary J. Drenon works
Medicare's Facility Affiliation Data lists Mary J. Drenon at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bothwell Regional Health CenterSedalia, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260009
- Fitzgibbon HospitalMarshall, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260142
Practice locations
Addresses where Mary J. Drenon is enrolled with Medicare (CMS data updated October 2, 2026).
- 1109 W Clay RdVersailles, MO 65084 (573) 378‑2349
- 2303 S Hwy 65, Suite AMarshall, MO 65340
- 2303 S Hwy 65 AMarshall, MO 65340
- 305 W Main St, Katy Trail Community HealthSedalia, MO 65301 (660) 826‑4774
- 821 Westwood DrSedalia, MO 65301 (660) 826‑4774
Group practices
Medicare enrollment lists Mary J. Drenon as a member of these groups (CMS data updated October 2, 2026).
- John Fitzgibbon Memorial Hospital Inc45 clinicians in the group
- Regional Health Care Clinic Inc29 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Versailles
Clinicians with the same Medicare primary specialty in Versailles, MO — not a recommendation.
Other clinicians in John Fitzgibbon Memorial Hospital Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790434413 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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