Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Robert Hollenbach, O.D.
Optometrist in York, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801882113
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Registry record
Entity type Individual (Type 1)
Name Dr. Robert Hollenbach
Credential O.D.
Sex Male
Practice address 2700 Eastern Blvd, York, PA, 17402
Phone (717) 757-7023
Fax (717) 747-0123
Enumeration date Sep 22, 2005
Last updated in NPPES Mar 10, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 626335 | Other | PA | BLUE SHIELD |
| 50006419 | Other | PA | BLUE CROSS |
| 0165770002 | Other | PA | DMERC REGION D |
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 Robert Hollenbach?
Robert Hollenbach 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 → Seema Khanna Optometrist · York, PA NPI 1790771061 Yanna Nachtigall Optometrist · York, PA NPI 1194794974 Weaver Eye Associates LLC Optometrist · York, PA NPI 1114965852 Carolyn Allen Optometrist · York, PA NPI 1104133883 Rebecca Miller Optometrist · York, PA NPI 1871017012 Myeyedr Optometry of Pennsylvania, LLC Optometrist · York, PA NPI 1124680590
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-10.