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DR. MELISSA O'RYAN MEKESA M.D.
NPI 1083908602
Emergency Medicine in Marion, OH

Active since May 31, 2011PECOS EnrolledAccepts Medicare Assignment
1000 MCKINLEY PARK DR, MARION, OH 43302(740) 383-8700(937) 619-4150 Get Directions Write a Review

NPPES record last updated: March 2, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Melissa O'ryan Mekesa M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MELISSA O'RYAN MEKESA M.D. (NPI 1083908602) is an individual emergency medicine provider in Marion, Ohio, licensed in Florida (ME149190) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, is affiliated with Santa Rosa Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1083908602
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. MELISSA O'RYAN MEKESACredential: M.D.
Location Address1000 MCKINLEY PARK DRMarion, OH 43302-6399
Mailing Address4750 Hempstead Station DrKettering, OH 45429-5164 · (800) 875-0136 · Fax (937) 619-4350
Phone(740) 383-8700
Fax(937) 619-4150
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateMay 31, 2011
Last NPPES UpdateMarch 2, 2021
NPPES CertifiedMarch 2, 2021
✔ NPI 1083908602 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in FL · ME149190✔ Licensed in OH · 35-121848
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1000 MCKINLEY PARK DR, Marion, OH 43302
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama, CareSource, Oscar Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Melissa O'ryan Mekesa M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8527202449
PECOS Enrollment IDI20210304000468, I20250916001758
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

8

Medicare enrollment records show Melissa Mekesa reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ohiohealth Corporation
37 mi
Cardiovascular Disease
3705 OLENTANGY RIVER RD, SUITE 100
Columbus, OH 43214
  • Reassigned Medicare billing, Ohio enrollment
  • 3,314 clinicians in this Medicare group
NPI 1194979526 (614) 262-6772
Ohio Emergency Professionals Inc
43 mi
Emergency Medicine
50 W BROAD ST
Columbus, OH 43215
  • Reassigned Medicare billing, Ohio enrollment
  • 474 clinicians in this Medicare group
NPI 1982983425 (440) 887-4718
Emergency Professional Services, Inc.
116 mi
Emergency Medicine
230 MEDICAL CENTER DR
Seaman, OH 45679
  • Reassigned Medicare billing, Ohio enrollment
  • 894 clinicians in this Medicare group
NPI 1093762353 (937) 386-3400
Flowers Hb Medical Services LLC
657 mi
Emergency Medicine
4370 W MAIN ST
Dothan, AL 36305
  • Reassigned Medicare billing, Alabama enrollment
  • 252 clinicians in this Medicare group
NPI 1972283828 (334) 793-5000
Santa Rosa Hb Medical Services LLC
705 mi
Diagnostic Radiology
151 E REDSTONE AVE
Crestview, FL 32539
  • Reassigned Medicare billing, Florida enrollment
  • 78 clinicians in this Medicare group
NPI 1730969502 (877) 892-9815
NW Florida Emergency Physicians LLC
720 mi
Emergency Medicine
6002 BERRYHILL RD
Milton, FL 32570
  • Reassigned Medicare billing, Florida enrollment
  • 23 clinicians in this Medicare group
NPI 1366773566 (850) 626-7762
Md4er LLC
1,105 mi
Emergency Medical Services
5900 COLLEGE RD
Key West, FL 33040
  • Reassigned Medicare billing, Florida enrollment
  • 36 clinicians in this Medicare group
NPI 1568851707 (305) 294-5531
Ohio Emergency Care Services Inc
  • Reassigned Medicare billing, Ohio enrollment
  • 179 clinicians in this Medicare group
No phone listed

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
91 services90 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
57 services57 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
43 services39 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
15 services15 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Santa Rosa Medical Center

Acute Care Hospitals · Milton, FL
4/5 CMS rating
OwnershipProprietary
CMS Certification Number100124
Location6002 Berryhill RdMilton, FL 32570 · Santa Rosa County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 43302 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENNIFER BIANCA COFFEY CNP
Nurse Practitioner (Acute Care)
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8400
MRS. DELLA LANE RICE NP
Nurse Practitioner
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8473
JILL R THOMAS PAC
Physician Assistant
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8700
ASHLEY JUDSON RD
Dietitian, Registered
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8616
FRANKLIN R MILLARD PAC
Physician Assistant
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8700
VEERA CHANDRA SEKHAR VEERLA MD
Hospitalist
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8473
BRAD BABINES RDN, LD
Dietitian, Registered
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8400
ANDREA JO BEARDSLEY NP
Nurse Practitioner (Family)
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8400

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melissa Mekesa's NPI number?

The NPI number for Melissa Mekesa is 1083908602. It was assigned to this individual provider in the NPPES registry on May 31, 2011.

Where is Melissa Mekesa located?

Melissa Mekesa practices at 1000 Mckinley Park Dr, Marion, OH 43302. The listed phone number is (740) 383-8700.

What is Melissa Mekesa's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Melissa Mekesa enrolled in Medicare?

Yes. Melissa Mekesa is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Melissa Mekesa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Mekesa reassigns Medicare benefits to 8 organizations: Ohiohealth Corporation (Columbus, OH), Ohio Emergency Professionals Inc (Columbus, OH), Emergency Professional Services, Inc. (Seaman, OH), Flowers Hb Medical Services LLC (Dothan, AL), Santa Rosa Hb Medical Services LLC (Crestview, FL) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa Mekesa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa Mekesa accept?

Health plans from Blue Cross and Blue Shield of Alabama, CareSource, Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Melissa Mekesa as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Melissa Mekesa affiliated with any hospitals?

According to CMS data, Melissa Mekesa is affiliated with Santa Rosa Medical Center.

When was this NPI record last updated?

The NPPES record for Melissa Mekesa was last updated on March 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.