Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark L Hepner, OD
Optometrist in Sunbury, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851361125
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Registry record
Entity type Individual (Type 1)
Name Mark L Hepner
Credential OD
Sex Male
Practice address 309 N 5th St, Sunbury, PA, 17801
Phone (570) 286-2541
Fax (570) 286-4180
Enumeration date Jan 26, 2006
Last updated in NPPES Dec 11, 2014
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mark Hepner?
Mark Hepner is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Mark Shoch Physical Therapist · Sunbury, PA NPI 1578631354 Mark L Hepner Optometrist LLC Optometrist · Sunbury, PA NPI 1558676064 Donald Shipe Physical Therapist · Sunbury, PA NPI 1235445933 Mark L Hepner Optometrist LLC Eyewear Supplier · Sunbury, PA NPI 1154610251 Shoch Physical Therapy Inc Physical Therapy Clinic/Center · Sunbury, PA NPI 1487990875 Gerrisa Strony Orthopedic Physical Therapist · Sunbury, PA NPI 1437542321
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-11.