Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Claire Barbara Petersen, D.C.
Chiropractor in Ithaca, NY · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891139135
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Registry record
Entity type Individual (Type 1)
Name Claire Barbara Petersen
Credential D.C.
Sex Female
Practice address 821 Cliff St, Ithaca, NY, 14850
Phone (607) 256-9355
Fax (607) 275-9355
Enumeration date Apr 17, 2013
Last updated in NPPES Feb 23, 2018
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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
Where does Claire Petersen practice?
The practice location on file with NPPES is in Ithaca, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Claire Petersen?
The National Provider Identifier (NPI) for Claire Petersen is 1891139135, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-23.