Michael J Williams, Dmd, PC

Michael J Williams, Dmd, PC is a healthcare organization registered as Periodontics in Pittsfield, MA, holding Type 2 (organization) NPI 1598774218 since 2006. The authorized official on file is Michael Williams, President.

✓ Active NPI ✓ Valid NPI checksum

NPI	1598774218
Entity type	Organization (Type 2)
Legal business name	Michael J Williams, Dmd, PC
Practice address	120 SOUTH ST, Pittsfield, MA, 01201
Phone	4134427855
Fax	4134993605
Enumeration date	2006-08-05
Last updated in NPPES	2008-06-22

Authorized official

Name	Michael Williams
Title	President
Phone	4134427855

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
1223P0300X	Periodontics	Primary	20171	MA

Copy-ready billing details

Provider: Michael J Williams, Dmd, PC
NPI: 1598774218
Taxonomy: 1223P0300X (Periodontics)
Address: 120 SOUTH ST, Pittsfield, MA, 01201

Providers at this address

NPI	Name	Type	Specialty	Location
1851316103	Michael Williams	Individual	Periodontics	Pittsfield, MA
1093806564	Randall Fisher	Individual	Clinical Social Worker	Pittsfield, MA
1114083201	Donna Weber	Individual	Clinical Social Worker	Pittsfield, MA
1023161114	Jacqueline Stores	Individual	Clinical Psychologist	Pittsfield, MA
1255463691	Michael J Williams, Dmd, PC	Organization	Periodontics	Pittsfield, MA
1740314582	James Hashim	Individual	Periodontics	Pittsfield, MA

Verify this record

Cross-check NPI 1598774218 against the authoritative CMS record: view Michael J Williams, Dmd, PC on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Where is Michael J Williams, Dmd, PC located?

The practice location on file with NPPES is in Pittsfield, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-06-22. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-06-22.