Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Walter Robert Guss II, O.D.
Optometrist in Middletown, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205829504
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Registry record
Entity type Individual (Type 1)
Name Dr. Walter Robert Guss II
Credential O.D.
Sex Male
Practice address 1093 N Union St, Middletown, PA, 17057
Phone (717) 944-4031
Fax (717) 944-1890
Enumeration date Aug 23, 2005
Last updated in NPPES Jul 30, 2009
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 |
|---|---|---|---|
| 021139ZC38 | Other | PA | MEDICARE |
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
What is the NPI number for Walter Guss?
The National Provider Identifier (NPI) for Walter Guss is 1205829504, a Type 1 (individual) record in the CMS NPPES registry.
Where does Walter Guss practice?
The practice location on file with NPPES is in Middletown, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-30.