Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joanne Testa Williams
Pharmacist in Acton, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497347249
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Registry record
Entity type Individual (Type 1)
Name Joanne Testa Williams
Sex Female
Practice address 563 Massachusetts Ave, Acton, MA, 01720
Phone (978) 263-3901
Fax (978) 263-2305
Enumeration date Feb 3, 2021
Last updated in NPPES Feb 3, 2021
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 19407 | Medicaid | MA | - |
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.
Frequently asked questions
Where does Joanne Testa Williams practice?
The practice location on file with NPPES is in Acton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joanne Testa Williams?
The National Provider Identifier (NPI) for Joanne Testa Williams is 1497347249, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Acton Pharmacy Inc Community/Retail Pharmacy · Acton, MA NPI 1023176476 Theodoros Toufas Pharmacist · Acton, MA NPI 1417390105 Acton Pharmacy Inc Long Term Care Pharmacy · Acton, MA NPI 1699316984 Saad Dinno Pharmacist · Acton, MA NPI 1447874383 Lynn Hearne Pharmacist · Acton, MA NPI 1952990939 Tracy Walczewski Pharmacist · Acton, MA NPI 1891386660 Daniel Dinno Pharmacist · Acton, MA NPI 1841901519
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-03.