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DR. R WILLIAM MASON M.D.
NPI 1619947918
Otolaryngology in Needham, MA

Active since January 26, 2006
15 OAK ST, NEEDHAM, MA 02492(781) 444-4722(781) 444-4721 Get Directions Write a Review

NPPES record last updated: February 24, 2009. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. R William Mason M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. R WILLIAM MASON M.D. (NPI 1619947918) is an individual otolaryngology provider in Needham, Massachusetts, licensed in Massachusetts (37217) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1619947918
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. R WILLIAM MASONCredential: M.D.
Location Address15 OAK STNeedham, MA 02492-2401
Mailing Address40 Woods End RdDedham, MA 02026-5823 · (781) 444-4722 · Fax (781) 444-4721
Phone(781) 444-4722
Fax(781) 444-4721
Sole ProprietorNo
Enumeration DateJanuary 26, 2006
Last NPPES UpdateFebruary 24, 2009
✔ NPI 1619947918 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in MA · 37217
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
15 OAK ST, Needham, MA 02492
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Other Identifiers 3

Medicare UPIND32628MA
Medicare PINC16117MA
Medicaid6176283MA

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JILL M DAY NP
Nurse Practitioner (Adult Health)
15 OAK ST
NEEDHAM, MA 02492
Norfolk County (339) 793-8998
KENNEDY BROTHERS PHYSICAL THERAPY INC.
Physical Therapist
15 OAK ST, STE 1
NEEDHAM, MA 02492
Norfolk County (781) 444-1614

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is R William Mason's NPI number?

The NPI number for R William Mason is 1619947918. It was assigned to this individual provider in the NPPES registry on January 26, 2006.

Where is R William Mason located?

R William Mason practices at 15 Oak St, Needham, MA 02492. The listed phone number is (781) 444-4722.

What is R William Mason's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

When was this NPI record last updated?

The NPPES record for R William Mason was last updated on February 24, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.