Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Shannon Hamill, MA, CCC-A
Audiologist in Lexington, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932175494
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Registry record
Entity type Individual (Type 1)
Name Mary Shannon Hamill
Credential MA, CCC-A
Sex Female
Practice address 482 Bedford St, Lexington, MA, 02420
Phone (781) 672-2146
Fax (781) 672-2145
Enumeration date Feb 24, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
What specialty is Mary Hamill?
Mary Hamill is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Jane Liberman Audiologist · Lexington, MA NPI 1952374639 Lisa Schonberger Speech-Language Pathologist · Lexington, MA NPI 1497728109 Jennifer Bartlett Speech-Language Pathologist · Lexington, MA NPI 1780658286 Mary Giles Speech-Language Pathologist · Lexington, MA NPI 1124092903 Karen Willson Audiologist · Lexington, MA NPI 1508832270 Kathleen West Audiologist · Lexington, MA NPI 1649246323 Karen Wilber Audiologist · Lexington, MA NPI 1740256916 Amal Awdeh Audiologist · Lexington, MA NPI 1477522993
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.