Quick answers
- Does Adam R. Osterhage accept Medicare assignment?
- Yes. Medicare's clinician data says Adam R. Osterhage 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 Adam R. Osterhage see?
- In 2024, CMS data shows 391 Original Medicare patients and 1,362 services for Adam R. Osterhage. This counts Original Medicare only and measures volume, not quality.
- What is Adam R. Osterhage's NPI number?
- 1083141337. 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 Adam R. Osterhage, 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 | 391 |
|---|---|
| Services billed to Medicare | 1,362 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)585 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)160 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)118 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)114 services
- Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)109 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%
- Depression57%
- Anxiety54%
- Ischemic heart disease53%
Hospitals where Adam R. Osterhage works
Medicare's Facility Affiliation Data lists Adam R. Osterhage 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.
- Mercy Health St Ritas Medical CenterLima, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360066
- Paulding County HospitalPaulding, OH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 361300
Practice locations
Addresses where Adam R. Osterhage is enrolled with Medicare (CMS data updated October 2, 2026).
- 967 Bellefontaine AveLima, OH 45804 (419) 996‑5895
Group practices
Medicare enrollment lists Adam R. Osterhage as a member of this group (CMS data updated October 2, 2026).
- Mercy Health Physicians Lima Specialty Care LLC253 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lima
Clinicians with the same Medicare primary specialty in Lima, OH — not a recommendation.
Other clinicians in Mercy Health Physicians Lima Specialty Care LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083141337 |
| 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