ALL the endos below are in the Chicago area, ALL of them list reproductive endocrinology as an area of interest (tends to best cover gynecomastia) and all of the doctors are listed as board certified.
You will have to vet them yourself as I do not know them personally, but if I were you I would ring a few of them and consider making an appointment with the one you feel most comfortable with. You should also pass on the details of the chosen endocrinologist to your gp. You should be able to ask any/all reasonable questions of the endo/or their secretary that you have in mind, both of a medical and insurance nature.
I hope this helps.
Achal Ahmed, MD
3001 Greenbay Road (111E)
North Chicago, IL 60064
Directions to Office
Phone: (708) 275-5408
Interest Areas:
General Endocrinology and Metabolism
Obesity
Reproductive Endocrinology
Thyroid Dysfunction
PCOS
Parul Aneja, MD
Mercy Hospital and Medical Center
2525 S. Michigan Ave
Chicago, IL 60616
Directions to Office
Phone: (773) 510-0689
Interest Areas:
Diabetes Mellitus
Lipid Disorders
Parathyroid Disorders
Reproductive Endocrinology
Menopause
Jasbir Dhawan, MD
1725 W Harrison St Ste 250
Chicago, IL 60612-3837
Directions to Office
Phone: (312) 563-2256
Interest Areas:
Diabetes Mellitus
Reproductive Endocrinology
Thyroid Dysfunction
Osteoporosis
William Michael Konitsky, MD
5841 South Maryland Ave
Room 247 MC 1027
Chicago, IL 60637
Directions to Office
Phone: (773) 795-0486
Interest Areas:
Diabetes Mellitus
General Endocrinology and Metabolism
Reproductive Endocrinology
Thyroid Dysfunction
Osteoporosis
Nunilo Guinto Rubio, MD, FACP, FACE
5322 West Fullerton Avenue
Chicago, IL 60639
Directions to Office
Phone: (773) 622-0056
Interest Areas:
Adrenal Disorders
Diabetes Mellitus
Metabolic Bone Disorders
Reproductive Endocrinology
Thyroid Dysfunction
Jolita Satkus, MD
VA Medical Center
3001 Green Bay Rd #111E
North Chicago, IL 60064
Directions to Office
Phone: (847) 688-1900
Interest Areas:
Diabetes Mellitus
General Endocrinology and Metabolism
Hypertension
Lipid Disorders
Obesity
Reproductive Endocrinology
Thyroid Dysfunction
Osteoporosis
Menopause
Arati Wagh, MD
1725 W. Harrison Suite 250
Chicago, IL 60611
Directions to Office
Phone: (312) 563-2094
Interest Areas:
Reproductive Endocrinology
PCOS
Gerald W. Weisberg, MD
3150 N Lake Shore Dr # 30 E
Chicago, IL 60657-4810
Directions to Office
Phone: (773) 477-3326
Interest Areas:
Diabetes Mellitus
Reproductive Endocrinology
Carrie Ann Zimmer, MD
5839 S. Maryland Ave
Rm C-529, MC 5053
Chicago, IL 60637
Directions to Office
Phone: (773) 702-6432
Interest Areas:
Pediatric Endocrinology
Reproductive Endocrinology