Quick answers
- Does Marguerite Flath-Yerkes accept Medicare assignment?
- Yes. Medicare's clinician data says Marguerite Flath-Yerkes 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 Marguerite Flath-Yerkes see?
- In 2024, CMS data shows 61 Original Medicare patients and 79 services for Marguerite Flath-Yerkes. This counts Original Medicare only and measures volume, not quality.
- What is Marguerite Flath-Yerkes's NPI number?
- 1629852314. 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 Marguerite Flath-Yerkes, 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 | 61 |
|---|---|
| Services billed to Medicare | 79 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)36 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)28 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)14 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%
- Arthritis75%
- Depression48%
- Anxiety39%
- Ischemic heart disease38%
Hospitals where Marguerite Flath-Yerkes works
Medicare's Facility Affiliation Data lists Marguerite Flath-Yerkes 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.
- Henry County Hospital, IncNapoleon, OH · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 361309
- Mercy Health - Defiance HospitalDefiance, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360270
- Mercy St Vincent Medical CenterToledo, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360112
Practice locations
Addresses where Marguerite Flath-Yerkes is enrolled with Medicare (CMS data updated October 2, 2026).
- 1400 E 2nd StDefiance, OH 43512 (419) 784‑1414
- 2222 Cherry St, Suite M200Toledo, OH 43608 (419) 475‑9431
Group practices
Medicare enrollment lists Marguerite Flath-Yerkes as a member of these groups (CMS data updated October 2, 2026).
- Mercy Health Physicians North Specialty Care LLC355 clinicians in the group
- Mercy Medical Partners Northern Region Specialty Care LLC86 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Defiance
Clinicians with the same Medicare primary specialty in Defiance, OH — not a recommendation.
Other clinicians in Mercy Health Physicians North Specialty Care LLC
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) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1629852314 |
| 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