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Ophthalmology

Mairghread G. Casey, MD

Works at hospitals in Columbus, OH · Ohio

Summary

Dr. Mairghread G. Casey, MD is an ophthalmologist at 915 Olentangy River Rd, Fl 5, Columbus, OH 43212. Phone: (614) 293-8116. Accepts Medicare assignment. In 2024, Mairghread G. Casey had 46 Original Medicare patients and 140 services. NPI 1326542481. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Mairghread G. Casey, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mairghread G. Casey accept Medicare assignment?
Yes. Medicare's clinician data says Mairghread G. Casey 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 Mairghread G. Casey see?
In 2024, CMS data shows 46 Original Medicare patients and 140 services for Mairghread G. Casey. This counts Original Medicare only and measures volume, not quality.
What is Mairghread G. Casey's NPI number?
1326542481. 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 Mairghread G. Casey, 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 patients46
Services billed to Medicare140
Different services or procedures12
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Imaging of optic nerve (92133)30 services
  2. Exam of visual field with extended testing (92083)28 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)21 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)15 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%
  • Arthritis61%
  • Depression41%
  • Anxiety41%
  • Diabetes39%

Hospitals where Mairghread G. Casey works

Medicare's Facility Affiliation Data lists Mairghread G. Casey 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.

Practice locations

Addresses where Mairghread G. Casey is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mairghread G. Casey as a member of this group (CMS data updated October 2, 2026).

  • OSU Eye Physicians and Surgeons, LLC47 clinicians in the group

Specialties

Find other Ophthalmology doctors in Ohio →

Other ophthalmologists in Columbus

Clinicians with the same Medicare primary specialty in Columbus, OH — not a recommendation.

All ophthalmologists in Columbus →

Other clinicians in OSU Eye Physicians and Surgeons, LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326542481
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians