
Highlights
Age Groups Seen
- Infant 0-2
- Child 2-12
- Adolescent 12-21
Languages
- English
Gender
MaleLocations
- 508 Hamburg Turnpike, Suite 106, Wayne, NJ 07470
- Get Directions
- phone: 973-942-7800
- fax: 973-942-9680
Expertise
Education
- Residency: St. Joseph's Hospital and Medical Center, Pediatrics, 1995
- Internship: St. Joseph's Hospital and Medical Center, Pediatrics, 1993
- Medical School: Medical University of Warsaw, No Value Specified, 1985
Board Certifications
- Pediatrics: American Board of Pediatrics, 1995
Insurance
- Aetna
- Amerihealth
- Cigna
- Claritev
- Emblem Health - GHI
- Horizon Blue Cross Blue Shield
- Humana Military
- Magnacare
- Medicare
- Oxford (UHC)
- Qualcare - Oscar
- United Healthcare
- US Family Health Plan
Ratings & Reviews
4.9 out of 5
30 ratings, 8 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 4/1/2026
Best Dr ever!
- 5 out of 5 starsReviewed on 4/1/2026
Dr G is a kind and caring physician. He truly cares for his patients and arms the parents with knowledge to continue the care at home. There are not enough words to say how much our family has learned and benefited from having Dr. Gruczynski as our Pediatrician!!
- 3 out of 5 starsReviewed on 4/1/2026
Talked over me and didn’t really listen. Was condescending and interrupted to ask his question again if I didn’t answer the way he wanted. No bedside manner at all. Clearly a knowledgeable and competent doctor, but I wouldn’t ever see him again.
- 5 out of 5 starsReviewed on 3/1/2026
We love Dr. G. He is patient, kind and takes his time taking to my kids. He is thorough and makes sure he doesn’t just talk to me as the parent but, speaks to the kids as well.
- 5 out of 5 starsReviewed on 3/1/2026
Extremely knowledgeable straightforward..told us whats working and where we could do better..also he interjects a little humor along the way which was great. He had good patient interaction with my son and myself..Dr G. Is one of the good ones!!!
- 5 out of 5 starsReviewed on 1/1/2026
Dr G is an amazing dr. My son really enjoys going to see him and his staff
- 5 out of 5 starsReviewed on 12/1/2025
He has been my kids doctor for many years! My boys now that they are older are always devastated they cannot go back to Mr. Gruczynski he simply is one of the best doctors in the area and one to remember. He is doing gods work and my boys and daughter are one of many other people who were taken care of in such great hands. Thank you Tomasz Gruczynski and all the staff there!
- 5 out of 5 starsReviewed on 12/1/2025
Dr. Gruczyński provides exceptional care, takes his time with each patient, and offers thorough, detailed answers to all questions. His experience is evident in the clarity of his explanations and the confidence he brings to every visit.
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