Quick answers
- Does Ayyash Y. Melhem accept Medicare assignment?
- Yes. Medicare's clinician data says Ayyash Y. Melhem 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 Ayyash Y. Melhem see?
- In 2024, CMS data shows 1,917 Original Medicare patients and 4,827 services for Ayyash Y. Melhem. This counts Original Medicare only and measures volume, not quality.
- What is Ayyash Y. Melhem's NPI number?
- 1902044993. 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 Ayyash Y. Melhem, 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 | 1,917 |
|---|---|
| Services billed to Medicare | 4,827 |
| Different services or procedures | 72 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,901 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)461 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)273 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)262 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)256 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%
- Ischemic heart disease65%
- Arthritis59%
- Heart failure51%
- Diabetes45%
Hospitals where Ayyash Y. Melhem works
Medicare's Facility Affiliation Data lists Ayyash Y. Melhem 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.
- Grand Lake Health SystemSaint Marys, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360032
- Lima Memorial Health SystemLima, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360009
- Mercer County Joint Township Community HospitalColdwater, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 360058
- Mercy Health St Ritas Medical CenterLima, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360066
- Van Wert County HospitalVan Wert, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 360071
Practice locations
Addresses where Ayyash Y. Melhem is enrolled with Medicare (CMS data updated October 2, 2026).
- 730 W Market St, Suite 2kLima, OH 45801 (419) 996‑5852
Group practices
Medicare enrollment lists Ayyash Y. Melhem as a member of this group (CMS data updated October 2, 2026).
- Mercy Health Physicians Lima Specialty Care LLC253 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Ohio →
Other cardiologists 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
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902044993 |
| 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