Quick answers
- Does James A. O Leary accept Medicare assignment?
- Yes. Medicare's clinician data says James A. O Leary 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 James A. O Leary see?
- In 2024, CMS data shows 975 Original Medicare patients and 17,869 services for James A. O Leary. This counts Original Medicare only and measures volume, not quality.
- What is James A. O Leary's NPI number?
- 1346241502. 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 James A. O Leary, 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 | 975 |
|---|---|
| Services billed to Medicare | 17,869 |
| Different services or procedures | 81 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg (J7318)5,640 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)3,387 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,076 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)762 services
- X-ray of knee, 3 views (73562)529 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%
- Arthritis75%
- Ischemic heart disease28%
- Diabetes26%
- Anxiety23%
Hospitals where James A. O Leary works
Medicare's Facility Affiliation Data lists James A. O Leary 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.
- KershawhealthCamden, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420048
- Lexington Medical CenterWest Columbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420073
- MUSC Health Columbia Medical Center DowntownColumbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420026
- MUSC Medical CenterCharleston, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420004
Practice locations
Addresses where James A. O Leary is enrolled with Medicare (CMS data updated October 2, 2026).
- 1910 Blanding StColumbia, SC 29201 (803) 256‑4107
Group practices
Medicare enrollment lists James A. O Leary as a member of this group (CMS data updated October 2, 2026).
- Midlands Orthopaedics and Neurosurgery PA41 clinicians in the group
Specialties
- Sports Medicineprimary
- Orthopedic Surgeryalso
Other sports medicine doctors in Columbia
Clinicians with the same Medicare primary specialty in Columbia, SC — not a recommendation.
Other clinicians in Midlands Orthopaedics and Neurosurgery PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Vanderbilt University School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346241502 |
| 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