About Endocrine Associates. Endocrine Associates is a group practice with 1 location. ... Internal Medicine and Nurse Practitioner with 4 physicians. Endocrine Associates Office Locations. Endocrine Associates. 30 W Century Rd Ste 255 Paramus, NJ 07652 (201) 444-4363 ... Office Information. Fax: (201) 444-6590. Practice Website: Not Available ....