Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alison M Spar, NP
Nurse Practitioner in Worcester, MA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790115186
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Alison M Spar
Credential NP
Sex Female
Practice address 55 Lake Ave N, Worcester, MA, 01655
Phone (508) 334-2366
Fax (508) 334-7070
Enumeration date Nov 21, 2013
Last updated in NPPES Mar 11, 2014
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2268546 (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
What is the NPI number for Alison Spar?
The National Provider Identifier (NPI) for Alison Spar is 1790115186, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alison Spar practice?
The practice location on file with NPPES is in Worcester, MA. Providers can have multiple locations; NPPES lists the primary practice address.
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 2014-03-11.