Overview
Gregory Clark is an Endocrinologist practicing medicine in Buffalo Grove, Illinois.
His clinical expertise encompasses Hypoparathyroidism.
Dr. Clark is currently accepting new patients.
Specialties
Licenses
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- EPO
- POS
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE PDP
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
355 W Dundee Rd Ste 110, Buffalo Grove, IL 60089
Additional Areas of Focus
Dr. Clark has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
Northwestern Medical Faculty Foundation
Mark Molitch is an Endocrinologist practicing medicine in Chicago, Illinois. Dr. Molitch is highly rated in 29 conditions, according to our data. His clinical expertise encompasses Acromegaloid Facial Appearance Syndrome, Hypertrichosis-Acromegaloid Facial Appearance Syndrome, Acromegaly, Diabetic Nephropathy, and Hormone Replacement Therapy (HRT). Dr. Molitch is currently accepting new patients.
Endeavor Health Medical Group
Liana Billings, MD, an endocrinologist and clinical researcher at Endeavor Health, specializes in diabetes care and cardiometabolic disease. She serves as Vice Chair of Research for the Department of Medicine and directs the Clinical and Genetics Research Program in Diabetes and Cardiometabolic Disease. Dr. Billings focuses on precision medicine to better understand how genetics influence diagnosis, treatment and outcomes. Through her Precision Medicine in Diabetes Consultation Clinic, she partners with patients to personalize therapies and improve quality of life, including for those with rare forms of diabetes. Dr. Billings is highly rated in 28 conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Maturity Onset Diabetes of the Young, and Low Blood Sugar. Dr. Billings is board certified in American Board Of Internal Medicine. Dr. Billings is currently accepting new patients.
Endocrinology - Froedtert Hospital
Dr. Ioachimescu is recognized as an international expert in pituitary disorders, including rare diseases such as acromegaly and Cushing’s disease. After co-founding and directing the Emory Pituitary Center in Atlanta for 16 years, Dr. Ioachimescu joined the faculty at the Medical College of Wisconsin in 2023 with the goal of developing a successful academic multidisciplinary tertiary referral center at Froedtert.Due to her longstanding contribution to clinical care and research, she participated to international consensus guidelines on prolactinoma, Cushing’s disease, acromegaly and genetics of pituitary adenomas. She authored more than 100 publications and presented at national and international meetings such as American Association of Clinical Endocrinology (AACE), Endocrine Society and North American Skull Base Society. She is passionate about clinical research and has an active investigator-initiated portfolio dedicated to personalized treatment of patients with pituitary tumors. She also has a long track record of involvement in multicentric clinical trials that unveiled novel therapies for Cushing’s disease and acromegaly. Dr. Ioachimescu is passionate about medical education, and is currently the Education Oversight Committee chair of AACE, a writer for the Endocrine Self-Assessment Program and an associate editor of Pituitary and Endocrine Reviews journals.Dr. Ioachimescu loves outdoor activities such as hiking and skiing. Dr. Ioachimescu is highly rated in 37 conditions, according to our data. Her clinical expertise encompasses Pituitary Tumor, Prolactinoma, Cushing's disease, Endoscopic Transnasal Transsphenoidal Surgery, and Hormone Replacement Therapy (HRT). Dr. Ioachimescu is board certified in Endocrinology, Diabetes And Metabolism and Internal Medicine. Dr. Ioachimescu is currently accepting new patients.
Frequently Asked Questions about Dr. Gregory O. Clark
How do I make an appointment with Dr. Gregory O. Clark?
You can book an appointment with Dr. Gregory O. Clark by calling their office at 847-541-4878. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
What conditions does Dr. Gregory O. Clark specialize in?
While Dr. Gregory O. Clark is a Endocrinology, they have specific expertise in Hypoparathyroidism. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Endocrinology.
Does Dr. Gregory O. Clark accept my insurance?
Dr. Gregory O. Clark accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 847-541-4878 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers

