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

Dr. R William Mason, MD

Individual provider Otolaryngology Physician · NPI 1619947918

Dr. R William Mason, MD is an Otolaryngology Physician in Needham, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
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

15 Oak St
Needham, MA 02492-2401
Phone: (781) 444-4722
Fax: (781) 444-4721
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 37217 (MA)

Record details

NPI number1619947918
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 26, 2006
Last updated in NPPESFebruary 24, 2009

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