Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellen M Mahoney, M.D.
Pediatrics Physician in Wayland, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336339472
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Registry record
Entity type Individual (Type 1)
Name Ellen M Mahoney
Credential M.D.
Sex Female
Practice address 73 Pelham Island Rd, Wayland, MA, 01778
Phone (508) 358-2918
Fax (508) 358-6054
Enumeration date Jul 25, 2007
Last updated in NPPES Jun 20, 2011
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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
How do I verify Ellen Mahoney's NPI record?
Cross-check NPI 1336339472 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1336339472 active?
Yes, as of the latest NPPES snapshot, NPI 1336339472 is active (record last updated 2011-06-20).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-20.