Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nancy Sharkey-Fox, FNP
Nurse Practitioner in Cambridge, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255340154
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Registry record
Entity type Individual (Type 1)
Name Nancy Sharkey-Fox
Credential FNP
Sex Female
Practice address 75 Mount Auburn St, Harvard University Health Services, Cambridge, MA, 02138
Phone (617) 495-2001
Fax (617) 495-8078
Enumeration date Aug 7, 2006
Last updated in NPPES Nov 24, 2014
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 122390 (MA) Primary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 101-0011220 (VT) Secondary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan.
About the FNP 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 Nancy Sharkey-Fox's NPI record?
Cross-check NPI 1255340154 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1255340154 active?
Yes, as of the latest NPPES snapshot, NPI 1255340154 is active (record last updated 2014-11-24).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-24.