Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. William E Maher, MD

Individual provider Gastroenterology Physician · NPI 1477550739

Dr. William E Maher, MD is a Gastroenterology in Somersworth, New Hampshire. Graduated from Rutgers New Jersey Medical School in 1992, 34 years ago. Practices with Atlantic Digestive Specialists PLLC, a 17-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Hampshire.

Years since qualifying
34
Trained at
Rutgers New Jersey Medical School
Licensed in
NH
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

21 Clark Way
Somersworth, NH 03878-4401
Phone: (603) 692-2228
Fax: (603) 743-6732
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 10956 (NH)

Record details

NPI number1477550739
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2005
Last updated in NPPESSeptember 30, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1992 (34 years in practice)
Group practice Atlantic Digestive Specialists Pllc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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