HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / OK

LEWIS A WALLACE, DO

INTERNAL MEDICINE

Medical school: OKLAHOMA STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE

Graduated: 1991

NPI: 1942292271

Practice Locations (3)

CHICKASAW NATION DIVISION OF HEALTH

1921 STONECIPHER DR

ADA, OK 748203439

5804363980

CHICKASAW NATION DIVISION OF HEALTH

1438 HARDCASTLE BLVD

PURCELL, OK 730808233

4055274700

CHICKASAW NATION DIVISION OF HEALTH

817 E 6TH ST, CHICKASAW NATION MEDICAL CENTER

TISHOMINGO, OK 734601800

5803712392

Source: CMS National Downloadable File, September 2026.