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

Dr. Alaba Abiodun Onasanya, MD

Individual provider Internal Medicine Physician · NPI 1891896031

Dr. Alaba Abiodun Onasanya, MD is an Internal Medicine in Rock Hill, South Carolina. Qualified in 2002, 24 years ago. Practices with Oak Street Health Physicians Group of South Carolina LLC, a 32-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
24
Licensed in
SC
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1735 Heckle Blvd Unit M-S130
Rock Hill, SC 29732-4803
Phone: (803) 659-3444
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2670 Mills Park Dr, Rock Hill, SC 29732-8599 — (803) 366-4848
  • 205 Piedmont Blvd, Rock Hill, SC 29732-1836 — (803) 366-4848

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 23264 (SC)

Record details

NPI number1891896031
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 26, 2006
Last updated in NPPESAugust 28, 2025
Certification dateAugust 28, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Oak Street Health Physicians Group Of South Carolina Llc — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Rock Hill