Updated November 2026How we check doctors
Pins show each doctor's main office. Gold pins are in New Jersey, navy pins are nearby.
Same order as the list above. A comparison, not a ranking.
| Doctor | Type | Education and training | Reviews |
|---|---|---|---|
| Alessia Roehnelt, MD | Concierge · Endocrinology physician | Internal Medicine at The Mount Sinai Hospital | |
| Arpit Patel, MD | Concierge · Cardiology physician | ||
| Brendan Sullivan, MD | Concierge · Cardiology physician | ||
| Leonid Mandel, MD | Concierge · Cardiology physician | Internal medicine, University of Connecticut School of Medicine and Dentistry | 5.0 (10) |
| David Freilich, MD | Concierge · Cardiology physician | Internal medicine, Mount Sinai Medical Center | 5.0 (10) |
| John Cosmi, MD | Concierge · Cardiology physician | Internal medicine, New York University Medical Center and Bellevue Hospital | 5.0 (10) |
| Mark Blum, MD | Concierge · Cardiology physician | Mt. Sinai Hospital | 5.0 (10) |
| Gabriel Smolarz, MD | Concierge · Endocrinology physician | 5.0 (10) |
FindMyDirectDoctor lists 8 familial combined hyperlipidemia specialists in New Jersey. We last checked this list in November 2026.
1 of the 8 doctors list telehealth visits. Each profile says which visits are offered.
We confirmed board certification for 8 doctors on this list. Each profile shows the board and the specialty.
5 of the 8 doctors have patient reviews on FindMyDirectDoctor, 50 reviews in total. Each tile shows the doctor's rating and review count.
It depends on the practice. Many direct primary care and concierge practices charge a membership fee instead of billing insurance for office visits, and some also accept insurance. Each profile says how its practice works when the practice states it.