Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Cynthia Anne Korzelius, M.D.
Nephrology Physician in Newton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932175379
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Registry record
Entity type Individual (Type 1)
Name Dr. Cynthia Anne Korzelius
Credential M.D.
Sex Female
Practice address 2014 Washington St, Newton Wellesley Hospital, Hospitalist Suite, 2 North, Newton, MA, 02462
Phone (617) 243-6433
Fax (617) 243-5148
Enumeration date Feb 26, 2006
Last updated in NPPES Sep 11, 2025
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 156597 (MA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| AA15334 | Other | MA | HARVARD PILGRIM |
| 3191214 | Medicaid | MA | - |
| 3571773 | Other | MA | AETNA |
| 9414827 | Other | MA | SIGNA |
| J19912 | Other | MA | BLUE CROSS MEDEX |
| 403159 | Other | MA | TUFTS HEALTH PLAN |
| 3127888 | Other | MA | HEALTHSOURCE |
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 NPI 1932175379 active?
Yes, as of the latest NPPES snapshot, NPI 1932175379 is active (record last updated 2025-09-11).
How do I verify Cynthia Korzelius's NPI record?
Cross-check NPI 1932175379 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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 2025-09-11.