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

Dr. John M O'Day, MD

Individual provider Otolaryngology Physician · NPI 1508880964

Dr. John M O'Day, MD is an Otolaryngology Physician in Somersworth, New Hampshire. Practices as a sole proprietor. Licensed in New Hampshire.

Licensed in
NH
In the registry since
2006
Specialties on file
3
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

361 High St
Somersworth, NH 03878-1407
Phone: (603) 692-4500
Fax: (603) 692-4520
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 5507 (NH)
Facial Plastic Surgery Physician Taxonomy 207YS0123X · Licence 5507 (NH)
Sleep Medicine (Otolaryngology) Physician Taxonomy 207YS0012X · Licence 5507 (NH)

Record details

NPI number1508880964
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 27, 2006
Last updated in NPPESMay 8, 2008

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