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John L Maddox

John L Maddox, MD

Pediatrics

Highlights

Age Groups Seen

  • Pediatrics

Languages

  • English

Gender

Male

Locations

  1. Mass General Brigham Pediatrics Clinic

Expertise

Education

  • Residency: Tufts Medical Center, Residency Pediatrics, 2001
  • Medical Education: University of New Mexico, 1998

Board Certifications

  • Pediatrics: American Board of Pediatrics, 2001

Insurance

This provider may accept more insurance plans than shown. Please call the practice to find out if your plan is accepted.
Search plans
  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield NH
  • Cigna
  • Coventry
  • Fallon Health
  • Harvard Pilgrim Health Care
  • Humana
  • Mass General Brigham Health Plan
  • MassHealth
  • MassHealth ACO
  • Medicare
  • Medicare ACO
  • Multiplan
  • Railroad Medicare
  • TriCare
  • Tufts Health Plan
  • Tufts Public Health Plan
  • United Health Care
  • Wellpoint
  • WellSense

Ratings & Reviews

4.8 out of 5

67 ratings, 14 reviews

The 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.

How likely would you be to recommend this provider to your family and friends?
Search reviews
  • Reviewed on 1/12/2026

    Dr. Maddox is an amazing pediatrician-caring, knowledgeable, and truly professional. I'm grateful to God for guiding my path to such an extraordinary doctor for my children. Every visit to the office is a positive experience; the staff is always welcoming and attentive. Nurse [redacted] is especially caring and professional. I'm forever grateful to Dr. Maddox, [redacted], and the entire staff at PMA Haverhill.

  • Reviewed on 12/16/2025

    Dr. Maddox is so wonderful. We are so fortunate to have his wisdom, kindness and confidence as a provider of healthcare for both my young children.

  • Reviewed on 11/12/2025

    The visit was amazing

  • Reviewed on 10/16/2025

    Very helpful and provides the care I need.

  • Reviewed on 8/17/2025

    Dr. Maddox and his team have been my provider for almost 20 years. My mom and I are incredibly grateful for his care, kindness and compassion.

  • Reviewed on 8/1/2025

    Yes, my child sees Dr. Maddox and as soon as we turn around the corner to get into the parking lot, he's so excited he can't even wait to get out of the car to go see him. He loves him and he respects him and he feels safe with him.

  • Reviewed on 7/4/2025

    Thank you Dr. Maddox and staff for accommodating a sick visit for my [redacted] year old daughter. Very efficient

  • Reviewed on 7/2/2025

    We love Dr Maddox and the staff at Pentucket Medical

  • Reviewed on 6/13/2025

    He's great, he's always been great and my kids love him.

  • Reviewed on 6/5/2025

    Everything was great!

  • Reviewed on 5/28/2025

    He shows alot of respect and asks for the parents views

  • Reviewed on 5/25/2025

    We love Dr.Maddox. I plan to change my provider if he moves on to a different office.

  • Reviewed on 5/21/2025

    We've always had a pleasant experience going to Dr. Maddox's office. That's very nice. They give a book that the girls like to play with, and they've always been very attentive and very clear with everything that they need to explain with us. So overall, a very good pediatric doctor. I'm very happy with their service. Thank you.

  • Reviewed on 5/15/2025

    Excellent