Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Christine L Sullivan, NP
Nurse Practitioner in Worcester, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679655898
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Registry record
Entity type Individual (Type 1)
Name Ms. Christine L Sullivan
Credential NP
Sex Female
Practice address 55 Lake Ave N, Department of Pediatrics, Worcester, MA, 01655
Phone (508) 856-4225
Fax (508) 856-4282
Enumeration date Oct 19, 2006
Last updated in NPPES Oct 18, 2011
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 161915 (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
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0373061 | Medicaid | MA | - |
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 Christine Sullivan's NPI record?
Cross-check NPI 1679655898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1679655898 active?
Yes, as of the latest NPPES snapshot, NPI 1679655898 is active (record last updated 2011-10-18).
Other providers at this practice address
Browse all → James Liebmann Medical Oncology Physician · Worcester, MA NPI 1477556587 Daniel Han Radiation Oncology Physician · Worcester, MA NPI 1831192301 Frances Lagana Podiatrist · Worcester, MA NPI 1750385514 Seth Arum Endocrinology, Diabetes & Metabolism Physician · Worcester, MA NPI 1679578793 Yong Zhao Blood Banking & Transfusion Medicine Physician · Worcester, MA NPI 1366448813 Donna Russell Certified Registered Nurse Anesthetist · Worcester, MA NPI 1689672347 Bruce Simon Surgical Critical Care Physician · Worcester, MA NPI 1164420634 Richard Haas Endocrinology, Diabetes & Metabolism Physician · Worcester, MA NPI 1023017373
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-18.