Summary

Dr. Daniel Gruenstein is a cardiovascular disease specialist who also practices pediatrics, bringing three decades of medical expertise to his patients. He earned his medical degree from the University of Cincinnati College of Medicine and has built an extensive career focused on heart conditions affecting both children and adults. Dr. Gruenstein is fluent in English and Spanish, allowing him to serve a diverse patient population.

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 specializes in treating congenital heart disease, irregular heart rhythms, and heart valve problems. His diagnostic capabilities include performing electrocardiograms to check heart rhythm, echocardiograms to create detailed heart images, and stress tests that use medication to evaluate heart function under controlled conditions. Patients have given him an average rating of 4.6 stars for his compassionate care and clinical expertise.
Read More Read less

Overview based on verified provider data

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

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

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

Compare with Similar Doctors

Dr. Daniel Harris Gruenstein, MD
Dr. Dana Weisshaar, MD
Dr. Rajnikant T Patel
Dr. Juan Andres Merchan Hakspiel, MD
Dr. Daniel Harris Gruenstein, MDDr. Dana Weisshaar, MDDr. Rajnikant T PatelDr. Juan Andres Merchan Hakspiel, MD
Cardiovascular DiseaseCardiovascular DiseaseInterventional CardiologyCardiovascular Disease
Accepts New Patients
4.6 
3.9 
30 Years of Experience 37 Years of Experience 31 Years of Experience 26 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English 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: Medical College Baroda Med School: Universidad El Bosque Escuela Medicina Colombiana
Current Profile
View Profile View Profile View Profile

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

Dr. Daniel Harris Gruenstein holds an active medical license in the state of Maine.

Medical License

Medical Doctor with an active medical license in the state of Maine that expires in 2026.

Education & Training

Medical School

Graduated from University Of Cincinnati College Of Medicine in 1996.

NPI Number

Dr. Gruenstein's NPI number is 1518911288.

Similar doctors

Frequently Asked Questions

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.
What languages does Dr. Daniel Gruenstein speak?
Dr. Daniel Gruenstein speaks English and Spanish.
Where is Dr. Daniel Gruenstein's office located?
Dr. Daniel Gruenstein's office is located at 360 Broadway, Bangor, ME, 04401.
Is Dr. Daniel Gruenstein accepting new patients?
Dr. Daniel Gruenstein has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Daniel Gruenstein?
You can find contact information for Dr. Daniel Gruenstein here on Vitals.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.