Quick answers
- Does John J. Leisgang accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Leisgang 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 John J. Leisgang see?
- In 2024, CMS data shows 288 Original Medicare patients and 1,050 services for John J. Leisgang. This counts Original Medicare only and measures volume, not quality.
- What is John J. Leisgang's NPI number?
- 1407802754. 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 John J. Leisgang, 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 | 288 |
|---|---|
| Services billed to Medicare | 1,050 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)323 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)153 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)151 services
- Administration of influenza virus vaccine (G0008)89 services
- Influenza vaccine, inactivated (90653)82 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 cholesterol75%
- High blood pressure69%
- Arthritis44%
- Diabetes26%
- Ischemic heart disease24%
- Chronic kidney disease19%
Hospitals where John J. Leisgang works
Medicare's Facility Affiliation Data lists John J. Leisgang 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.
- Christ HospitalCincinnati, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360163
- Good Samaritan HospitalCincinnati, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360134
- Mercy Health - West HospitalCincinnati, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360234
Practice locations
Addresses where John J. Leisgang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1701 Mercy Health Place - Home Office, Payer Delegation and EnrollmentCincinnati, OH 45237
- 2200 Jefferson AveToledo, OH 43604
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Cincinnati
Clinicians with the same Medicare primary specialty in Cincinnati, OH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Cincinnati College Of Medicine |
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407802754 |
| 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