Steven D. Gronowitz, MD
Gastroenterology • Bayonne, NJ • 2+ (Bayonne, Lyndhurst) locations
About
Steven D. Gronowitz, MD is a board-certified gastroenterologist at United Medical, PC with offices in Bayonne and Lyndhurst, New Jersey. He provides gastroenterology services and telehealth appointments, with more than 25 years of experience in the field.
Clinic Type
Gastroenterology
Address
Bayonne, NJ; Lyndhurst, NJ
Phone
(201) 339-6111
medcannabis@crc.nj.gov
Opening Hours
Not published — contact the clinic to confirm hours.
Telehealth
https://www.unitedmed.com/services/telehealth/
Services Offered
Team
Insurance & Payment
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Languages Spoken
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Photos
What Patients Say
Overall sentiment across review platforms: mixed
- Various aggregated doctor rating sites: 4.52/5 (average across aggregated sites) (184 reviews (Health US News aggregate))
- RateMDs: 3.7/5 (3 reviews)
Patients praise
- Some patients praise Dr. Gronowitz for his bedside manner, describing him as gentle, kind, and supportive
- Reports that Dr. Gronowitz spends time listening to patients and answering questions during consultations
- Positive feedback regarding his clinical competence in performing procedures
Common complaints
- Reports of unorganized and unprofessional office staff at the United Medical, PC practice in Bayonne
- Complaints regarding poor communication, long wait times on phone lines, and difficulty scheduling appointments or obtaining prescription refills at the office location
- Occasional negative experiences with Dr. Gronowitz specifically, including reports of him being dismissive, appearing to rush appointments, or leaving before discussing procedure results
- Issues with administrative errors in medical records and pre-authorization procedures at the clinic
"I wish I read some of these reviews before I got my colonoscopy with Dr. Gronowitz. He did my first colonoscopy. Days later, I informed him I had stomach pain and bloating. He immediately got defensive and had no interest in helping me."
— Vitals review"Superb doc---really gentle and kind and thoroughly supportive. Just performed testing on me but I felt like I was in very competent hands. Nice guy too."
— RateMDs review"Some of the front desk workers are horrible. They dont answer the phone when you call and when they do answer the phone they act like they are doing you a favor."
— LocalityBiz review regarding United Medical, PC staffSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Find a Provider Near You | Aetna Medicare HMO D-SNP NJ — Jul 16, 2025
- [PDF] Provider Directory Directorio De Proveedores — Jun 23, 2026
- [PDF] HUDSON COUNTY - Aetna Better Health — Jun 30, 2026
- 4 N.J. hospitals renamed as part of new countywide health system - nj.com — Sep 15, 2025
- [PDF] Horizon Casualty Services, Inc. - Network Directory — Oct 1, 2025
Information sourced from the clinic's website as of July 11, 2026.
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