Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael James Onyon, O.D.
Optometrist in Salem, NH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1760434237
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Registry record
Entity type Individual (Type 1)
Name Dr. Michael James Onyon
Credential O.D.
Sex Male
Practice address 8 Stiles Rd, Salem, NH, 03079
Phone (603) 890-8821
Fax (603) 893-5614
Enumeration date May 16, 2006
Last updated in NPPES Sep 30, 2022
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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 Michael Onyon practice?
The practice location on file with NPPES is in Salem, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Onyon?
The National Provider Identifier (NPI) for Michael Onyon is 1760434237, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → David P. Gordon Dmdpc General Practice Dentistry · Salem, NH NPI 1417997917 David Gordon General Practice Dentistry · Salem, NH NPI 1225072606 Catherine Hodgdon Contractor · Salem, NH NPI 1467581033 Linda Tilden Massage Therapist · Salem, NH NPI 1902935844 Dr. Michael J. Onyon and Associates, P.C. Optometrist · Salem, NH NPI 1073712840 Daniela O'Neill General Practice Dentistry · Salem, NH NPI 1790953487 O'Neill Dentistry, Pllc Dental Clinic/Center · Salem, NH NPI 1215171277
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-30.