Summary

Dr. Daniel Gruenstein specializes in cardiovascular disease and pediatrics, bringing together expertise in heart conditions for patients of all ages. He earned his medical degree from the University of Cincinnati College of Medicine and has practiced for three decades, developing deep knowledge in treating complex cardiac conditions in both children and adults. Dr. Gruenstein communicates with patients in both English and Spanish.

Dr. Gruenstein practices at several locations throughout Bangor, Maine, including Saint Joseph Hospital, Northern Light Eastern Maine Medical Center, and Northern Light Pediatric Cardiology. He focuses on treating patients with congenital heart disease, irregular heart rhythms, and heart valve problems. His expertise includes performing heart rhythm tests, stress tests that monitor heart function during exercise, and ultrasound imaging to evaluate blood flow through the heart. Patients have given him an average rating of 4.6 out of 5 stars.

AI-generated from data on this provider profile.

Quick Facts

  • 4.6
  • 30 years of experience
  • 26 insurance plans accepted
  • speaks English, Spanish
  • University Of Cincinnati College Of Medicine
  • 11 written reviews
  • 2 specialties
  • 2 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. Daniel Harris Gruenstein has 3 locations

Saint Joseph Hospital

360 BroadwayBangor, ME 04401

Northern Light Pediatric Cardiology

417 State St Ste 305Bangor, ME 04401
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

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Dr. Daniel Harris Gruenstein, MDDr. Dana Weisshaar, MDDr. Paul Henri LaMarche Sr, MDDr. Joan Ellen Maccracken, MD
Cardiovascular DiseaseCardiovascular DiseasePediatricsPediatrics
Accepts New Patients
4.6 
30 Years of Experience 37 Years of Experience 66 Years of Experience 55 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English
Bangor , MECambridge , MABangor , MEBangor , ME
Med School: University Of Cincinnati College Of Medicine Med School: University of Toledo Medical School Med School: Boston University Med School: University of Pennsylvania
Current Profile
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Insurance Plans Accepted by Dr. Daniel Harris Gruenstein

  • Aetna
  • Aetna - HMO
  • Aetna - POS
  • Aetna - PPO
  • Anthem Blue Cross
  • Anthem Blue Cross and Blue Shield Colorado
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Massachusetts
  • Blue Shield of California
  • Cigna
  • Community Health Options
  • GEHA
  • Harvard Pilgrim Health Care
  • Humana
  • Medicaid - Medicaid
  • Medicaid - Medicaid (HMO Plans)
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Tricare
  • Tufts Health Plan
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • US Family Health Plan
  • Wellcare

Medical Specialties

Dr. Daniel Harris Gruenstein has the following 2 specialties

Specialty Expertise

Dr. Daniel Harris Gruenstein has the following 2 areas of expertise

  • Heart Catheterization
  • Pediatrics

Certifications, License, & Education

30 Years Experience

MEDICAL LICENSE

Medical Doctor, Maine, 2026, Active

EDUCATION & TRAINING

Medical School

University Of Cincinnati College Of MedicineGraduated in 1996

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Frequently Asked Questions

Where is Dr. Daniel Gruenstein's office located?
Dr. Daniel Gruenstein's office is located at 360 Broadway, Bangor, ME, 04401.
Which hospitals is Dr. Daniel Gruenstein affiliated with?
Dr. Daniel Gruenstein is affiliated with The University Of Chicago Medicine.
Does Dr. Daniel Gruenstein accept virtual/telehealth appointments?
Dr. Daniel Gruenstein has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Daniel Gruenstein accept my insurance?
You can see the insurance plans that Dr. Daniel Gruenstein accepts on their Vitals profile.
What languages does Dr. Daniel Gruenstein speak?
Dr. Daniel Gruenstein speaks English and Spanish.

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