WILLIAM T MASON M.D.
NPI 1679579338
Internal Medicine in Providence, RI

Q: What is the provider's specialty?

The provider's specialty is Internal Medicine with taxonomy code 207R00000X.

Active since June 27, 2005

1 HOPPIN ST, 3RD FLOOR, PROVIDENCE, RI 02903(401) 793-8400(401) 793-8402 Get Directions Write a Review

NPPES record last updated: September 7, 2007. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Table of Contents

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Insurance Plans Accepted
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Internal Medicine

About WILLIAM MASON

This page provides the complete NPI Profile along with additional information for William Mason, an internist established in Providence, Rhode Island with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1679579338 assigned on June 2005. The practitioner's primary taxonomy code is 207R00000X with license number MD05520 (RI). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI: 1679579338 Verify this NPI
Provider Name: WILLIAM T MASON M.D.
Gender: Male
Entity Type: Individual
Location Address: 1 HOPPIN ST 3RD FLOOR PROVIDENCE, RI 02903
Location Phone: (401) 793-8400
Location Fax: (401) 793-8402
Mailing Address: 1 HOPPIN ST 3RD FLOOR PROVIDENCE, RI 02903
Mailing Phone: (401) 793-8400
Mailing Fax: (401) 793-8402
Is Sole Proprietor?: No
Enumeration Date: 06-27-2005
Last Update Date: 09-07-2007
Code Navigator

An internist like William Mason is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification: Internal Medicine
Taxonomy Code: 207R00000X
Type: Allopathic & Osteopathic Physicians
License No.: MD05520
License State: RI
Taxonomy Description: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	207RR0500X	Allopathic & Osteopathic Physicians	Internal Medicine Rheumatology	MD05520 (RI)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier	Type / Code	Identifier State
7001782	MEDICAID (05)	RI
D87545	MEDICARE UPIN (02)
7008151	MEDICARE ID-TYPE UNSPECIFIED (04)	RI

Other Providers at the Same Location

The following 20 providers are registered at the same or a nearby location.

ELIZABETH D BUCKLEY PA

Physician Assistant

1 HOPPIN ST, 3RD FLOOR
PROVIDENCE, RI 02903

Providence County (401) 793-8400

JULIE BOERGERS PHD