DR. MELISSA O'RYAN MEKESA (M.D.) – Emergency Medicine Physician, NPI 1083908602
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,673 EMERGENCY MEDICINE in OH
Provider Addresses for DR. MELISSA O'RYAN MEKESA (M.D.)
4750 HEMPSTEAD STATION DR
KETTERING, OH 454295164
Phone: (800) 875-0136
Fax: (937) 619-4350
Type: Mailing
1000 MCKINLEY PARK DR
MARION, OH 433026399
Phone: (740) 383-8700
Fax: (937) 619-4150
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-09-16
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20130916000548 | I | Family Practice | OH | TBD |
| I20210304000468 | I | Emergency Medicine | FL | TBD |
| I20250916001758 | I | Emergency Medicine | AL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 161 | 155 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 135 | 130 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 104 | 102 | $0 |
| 99291 | Critical care, first 30-74 minutes | 38 | 37 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 36 | 35 | $0 |
Insurance plans in this area (ZIP 45429)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | NY | |
| Internal Medicine | AL | |
| Emergency Medicine, Internal Medicine | MS | |
| Nurse Practitioner | VA | |
| Emergency Medicine | FL | |
| Internal Medicine, Emergency Medicine | MS | |
| Emergency Medicine | NJ | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL |
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