Quick answers
- Does Elizabeth Omoniyi accept Medicare assignment?
- Yes. Medicare's clinician data says Elizabeth Omoniyi 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 Elizabeth Omoniyi see?
- In 2024, CMS data shows 275 Original Medicare patients and 845 services for Elizabeth Omoniyi. This counts Original Medicare only and measures volume, not quality.
- What is Elizabeth Omoniyi's NPI number?
- 1194250985. 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 Elizabeth Omoniyi, 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 | 275 |
|---|---|
| Services billed to Medicare | 845 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)350 services
- Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)148 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)148 services
- Hemoglobin a1c level (83036)95 services
- Insertion of needle into vein for collection of blood sample (36415)62 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%
- Diabetes62%
- Arthritis53%
- Chronic kidney disease39%
- Ischemic heart disease37%
Hospitals where Elizabeth Omoniyi works
Medicare's Facility Affiliation Data lists Elizabeth Omoniyi 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.
- Arbuckle Memorial Hospital AuthoritySulphur, OK · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 371328
- Holdenville General HospitalHoldenville, OK · Critical Access Hospital · Emergency services: listed by Medicare · CCN 371321
- Mercy Hospital AdaAda, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370020
- Mercy Hospital Ardmore, IncArdmore, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370047
- Mercy Hospital Oklahoma City, IncOklahoma City, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370013
Practice locations
Addresses where Elizabeth Omoniyi is enrolled with Medicare (CMS data updated October 2, 2026).
- 520 N Monte Vista St A, Mercy ClinicAda, OK 74820 (580) 421‑9573
Group practices
Medicare enrollment lists Elizabeth Omoniyi as a member of this group (CMS data updated October 2, 2026).
- Mercy Clinic Oklahoma Communities649 clinicians in the group
Specialties
- Endocrinologyprimary
- Internal Medicinealso
Other endocrinologists in Ada
Clinicians with the same Medicare primary specialty in Ada, OK — not a recommendation.
Other clinicians in Mercy Clinic Oklahoma Communities
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1194250985 |
| 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