Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Kathryn Kline, RN
Registered Nurse in Newton, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235724220
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Registry record
Entity type Individual (Type 1)
Name Mary Kathryn Kline
Credential RN
Sex Female
Practice address 2014 Washington St, Newton, MA, 02462
Phone (617) 243-6000
Enumeration date Mar 2, 2021
Last updated in NPPES Mar 2, 2021
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN 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 Mary Kline's NPI record?
Cross-check NPI 1235724220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1235724220 active?
Yes, as of the latest NPPES snapshot, NPI 1235724220 is active (record last updated 2021-03-02).
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 Mary Jane Estrada-Lyder Nurse Practitioner · Newton, MA NPI 1427033257 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
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-02.