Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alice A S Williams, MD

Rheumatology Physician in Leominster, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1184670861

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Alice A S Williams

Credential MD

Sex Female

Practice address 225 New Lancaster Road, Leominster, MA, 01453

Phone (978) 466-3333

Fax (978) 466-3239

Enumeration date May 25, 2006

Last updated in NPPES Dec 13, 2018

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 76513 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
3200059	Other	-	EVERCARE
8885021	Other	-	CIGNA HEALTH PLAN
042472266	Other	-	ONE HEALTH PLAN
3106349	Medicaid	MA	-
660002370	Other	-	RAILROAD MEDICARE
J13005	Other	-	BLUE CARE ELECT
042472266	Other	-	HEALTHCARE VALUE MGMT
J13005	Other	-	BLUE SHIELD INDEMNITY
27120	Other	-	CHILDRENS MED SECURITY
9900887	Other	-	FALLON COMMUNITY HEALTH
J13005	Other	-	BLUE SHIELD HMO BLUE
042472266	Other	-	THREE RIVERS
27120	Other	-	HEALTHY START
7281332	Other	-	AETNA US HEALTHCARE
042472266	Other	-	PRIVATE HEALTHCARE SYSTEM
AA2368	Other	-	HARVARD PILGRIM HLTHCARE
042472266	Other	-	TRICARE CHAMPUS
784105	Other	-	MVP HEALTH CARE

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 → Validate an NPI →

Frequently asked questions

Where does Alice Williams practice?

The practice location on file with NPPES is in Leominster, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alice Williams?

The National Provider Identifier (NPI) for Alice Williams is 1184670861, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-13.