Summary

Dr. William Maher is a gastroenterologist and internal medicine physician who earned his medical degree from Rutgers New Jersey Medical School. He completed his residency at Strong Memorial Hospital and brings 34 years of clinical experience to his practice. Dr. Maher is fluent in both English and Spanish.

Dr. Maher practices at multiple locations throughout New Hampshire, including Somersworth, Rochester, Dover, and Portsmouth, with his primary affiliation at Wentworth Douglass Hospital. He specializes in treating colon polyps and diverticular conditions. His expertise includes performing colonoscopies and other endoscopic procedures to diagnose and treat digestive system disorders. Patients have given Dr. Maher an average rating of 4.2 out of 5 stars.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.2
  • 34 years of experience
  • 32 insurance plans accepted
  • speaks English, Spanish
  • Strong Memorial Hospital
  • 4 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 5 office locations
  • Male

Office Locations

Dr. William Edward Maher has 5 locations

Atlantic Digestive Specialists

21 Clark WaySomersworth, NH 03878
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Frisbie Memorial Hospital

11 Whitehall RdRochester, NH 03867

Wentworth Surgery Center Llc

6 Works WaySomersworth, NH 03878
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Portsmouth Regional Hospital

333 Borthwick AvePortsmouth, NH 03801

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Dr. William Edward Maher, MDChimdi Mfebe, APRNDr. Thomas Jacob RooneyDr. Ravi Teja Pasam
GastroenterologyGastroenterologyInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
4.2 
34 Years of Experience 14 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English
Somersworth , NHLittle Rock , ARPortsmouth , NHDover , NH
Med School: Rutgers New Jersey Medical School Med School: Chamberlain University College of Nursing Med School: Andhra Medical College
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. William Edward Maher

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna - Medicare
  • Aetna Better Health - Medicaid (Managed)
  • AmeriHealth
  • AmeriHealth - Medicaid (Managed)
  • Anthem Blue Cross
  • Anthem Blue Cross - PPO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Massachusetts
  • CHAMPVA
  • Cigna
  • Community Health Options
  • Harvard Pilgrim Health Care
  • Health Partners Plans (Pennsylvania)
  • HealthPartners
  • Humana
  • Mass General Brigham Health Plan
  • Medica
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • OSU Health Plan
  • Sierra Health and Life
  • Transamerica
  • Tricare
  • Tufts Health Plan
  • UniCare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare

Medical Specialties

Dr. William Edward Maher has the following 2 specialties

Specialty Expertise

Dr. William Edward Maher has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

34 Years Experience

MEDICAL LICENSE

Medical Doctor, New Hampshire, 2026, Active

EDUCATION & TRAINING

Residency

Strong Memorial Hospital

Medical School

Rutgers New Jersey Medical SchoolGraduated in 1992

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Frequently Asked Questions

Does Dr. William Maher accept my insurance?
You can see the insurance plans that Dr. William Maher accepts on their Vitals profile.
How can I make an appointment with Dr. William Maher?
You can find contact information for Dr. William Maher here on Vitals.
What languages does Dr. William Maher speak?
Dr. William Maher speaks English and Spanish.
Which hospitals is Dr. William Maher affiliated with?
Dr. William Maher is affiliated with Wentworth Douglass Hospital.
Is Dr. William Maher accepting new patients?
Dr. William Maher is accepting new patients on Vitals. View Dr. William Maher's profile on Vitals to make an appointment.

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