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

Dr. William M Marsh, MD

Individual provider Ophthalmology Physician · NPI 1568422343

Dr. William M Marsh, MD is an Ophthalmology Physician in Wolfeboro, New Hampshire. Practices as a sole proprietor. Licensed in New Hampshire.

Licensed in
NH
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

10 Center St
Wolfeboro, NH 03894
Phone: (603) 569-1550
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 7228 (NH)

Record details

NPI number1568422343
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 24, 2006
Last updated in NPPESJune 25, 2010
Mailing address742 Pleasant Valley Rd, Wolfeboro, NH 03894-7120