Steven D. Gronowitz, MD

Gastroenterology • Bayonne, NJ • 2+ (Bayonne, Lyndhurst) locations

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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.

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Clinic Type

Gastroenterology

Address

Bayonne, NJ; Lyndhurst, NJ

Phone

(201) 339-6111

Email

medcannabis@crc.nj.gov

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.unitedmed.com/provider/steven-d-gronowitz-md/

Telehealth

https://www.unitedmed.com/services/telehealth/

Services Offered

Gastroenterology
Telehealth

Team

Steven D. Gronowitz, MD, Gastroenterology – American Board of Internal Medicine — Board-Certified Gastroenterologist

Insurance & Payment

—

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 staff

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026. Own this clinic? Claim or correct this listing.