Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellen M Penso, M.D.
Gynecology Physician in Wayland, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053346114
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Registry record
Entity type Individual (Type 1)
Name Ellen M Penso
Credential M.D.
Sex Female
Practice address 241 Boston Post Rd, Suite 3a, Wayland, MA, 01778
Phone (508) 358-5707
Fax (508) 358-5709
Enumeration date Jul 11, 2006
Last updated in NPPES Nov 9, 2010
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
What is the NPI number for Ellen Penso?
The National Provider Identifier (NPI) for Ellen Penso is 1053346114, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ellen Penso practice?
The practice location on file with NPPES is in Wayland, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-09.