Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Jane Estrada-Lyder, NP
Nurse Practitioner in Newton, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427033257
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Registry record
Entity type Individual (Type 1)
Name Mary Jane Estrada-Lyder
Credential NP
Sex Female
Practice address 2014 Washington St, Newton, MA, 02462
Phone (617) 243-6573
Fax (617) 243-6070
Enumeration date Dec 14, 2005
Last updated in NPPES Jun 13, 2016
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 230517 (MA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP 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
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.
What specialty is Mary Jane Estrada-Lyder?
Mary Jane Estrada-Lyder is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Jennifer Balukonis Nurse Practitioner · Newton, MA NPI 1144210261 Judy Yang Internal Medicine Physician · Newton, MA NPI 1205818721 David Wyler Internal Medicine Physician · Newton, MA NPI 1689657686 Tarik Alkasab Diagnostic Radiology Physician · Newton, MA NPI 1154305803 Teresa Cahill Body Imaging Physician · Newton Lower Falls, MA NPI 1417935214 Daniel Mcdonald Diagnostic Radiology Physician · Newton, MA NPI 1053399857 Joseph Ferrucci Diagnostic Radiology Physician · Newton, MA NPI 1831177617 Joan Rastegar Diagnostic Radiology Physician · Newton, MA NPI 1467430256
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-13.