DR. Gregory O'neal Clark, M.D. is an endocrinology and diabetes and metabolism internal medicine in Buffalo Grove, IL. The provider is an internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems. DR. Gregory O'neal Clark, M.D. NPI is 1053363952. The provider is registered as an individual entity type and is a single specialty group.
The NPPES NPI record indicates the provider is a male.
The provider's business location address is:
355 W DUNDEE RD STE 110
BUFFALO GROVE, IL
ZIP 60089-500
Phone: (847) 541-4878
Fax: (847) 520-0500
The NPI 1053363952 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.
The enumeration date for this NPI number is 5/17/2006 and was last updated on 7/26/2023.