NJ Gastro
NJ Gastro is a Hepatologist practice in Newark, NY. Rated 4.1 from 48 public reviews. Phone and website are listed.
Address
24 Merchant St, Newark, NJ 07105
Newark, NY 07105
Phone
(973) 645-0000Website
Visit listed websiteListing updates
Request a correction or opt-outListed hours
- Monday
- 9AM–5PM
- Tuesday
- 9AM–5PM
- Wednesday
- 9AM–5PM
- Thursday
- 9AM–5PM
- Friday
- 9AM–5PM
- Saturday
- Closed
- Sunday
- Closed
Credentials, affiliations, and coverage
Credentials and licenses
- MD
Affiliations
- NJ GASTRO, LLC
Sources
- cms-doctors-clinicians · checked Aug 15, 2026
- cms-doctors-clinicians · checked Aug 15, 2026
- google-maps-octoparse · checked Aug 15, 2026
- google-maps-octoparse-cloud-recovery · checked Aug 12, 2026
Federal data is attributed to its source and does not imply CMS endorsement.
Newest photos
Newest reviews
isme Herrera
No written review was provided.
Anthony Miles
Beware: this place has a 48 hour cancellation policy that will cost $50!
Jissell Petrullo
No written review was provided.
Daniel Martinez
My experience was phenomenal! All the way from the front desk to the care giving by the doctors. I highly recommend this clinic, very professional. I was helped with my health issues here and I couldn’t have picked a better place.
Danny Pacheco
Write this: “I had an excellent experience at this facility. The staff was professional, kind, and very attentive from the moment I walked in. The office was clean, organized, and welcoming. The providers took the time to listen to my concerns and explained everything clearly. I truly felt cared for and respected.”
Enrique Sanchez
No written review was provided.
Ayda Orellana
No written review was provided.
Gina Sampedro
The staff were wonderful and very helpful and patient with me. Definitely recommended
Elrik Standor
Dr. Gregory Lesser is astounding, he honestly cares. He never tries to make you spend money that you don't have to and he is razor focused on curing you no matter what you have. I'm having an Endoscopy on the 25th and he referred me to a doctors office in Livingston for a different procedure as well. Please don't take a chance with anyone else. Go to NJ Gastro in Newark NJ and only allow Dr. Gregory Lesser to be your physician. You'll be happy you did.
Rafael Lizardo
Very profesional.
