Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark Joseph O'Neill

Individual provider Physical Therapist · NPI 1538795026

Mark Joseph O'Neill is registered under Physical Therapist in Private Practice in Columbia, South Carolina. Graduated from Medical University of South Carolina College of Medicine in 2010, 16 years ago. Practices with Midlands Orthopaedics and Neurosurgery PA, a 43-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
16
Trained at
Medical University of South Carolina College of Medicine
Licensed in
SC
In the registry since
2020
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Practice location Address checks out

1910 Blanding St
Columbia, SC 29201-3520
Phone: (803) 256-4107
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 6240 (SC)

Record details

NPI number1538795026
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 17, 2020
Last updated in NPPESApril 15, 2026
Certification dateApril 15, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Midlands Orthopaedics And Neurosurgery Pa — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients378
Services billed 5,236 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Midlands Orthopaedics and Neurosurgery PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 43 clinicians in the practice; 12 are shown here.

Other providers in Columbia