Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William J Oconnor, MD

Individual provider Family Medicine Physician · NPI 1174576409

William J Oconnor, MD practises Internal Medicine in Myrtle Beach, South Carolina. Graduated from Medical University of South Carolina College of Medicine in 1998, 28 years ago. Practices with Little River Medical Center Inc, a 40-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
28
Trained at
Medical University of South Carolina College of Medicine
Licensed in
SC
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7424 N Kings Hwy
Myrtle Beach, SC 29572 Not confirmed with CMS for 11 years — call before visiting
Phone: (843) 663-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 21194 (SC)

Record details

NPI number1174576409
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2006
Last updated in NPPESMarch 26, 2015

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Little River Medical Center Inc — 40 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 patients25
Services billed 52 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Little River Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 40 clinicians in the practice; 12 are shown here.

Other providers in Myrtle Beach