NPI Portal NPI Lookup & Verification

Mr. Robert W Klassen, MD

Mr. Robert W Klassen is a General Practice Physician provider (General Practice) practicing in Gainesville, GA, registered in the NPPES registry with NPI 1104926377 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1104926377
Entity type Individual (Type 1)
Name Mr. Robert W Klassen
Credential MD
Sex Male
Practice address 100 SPRING ST, Gainesville, GA, 30501
Phone 7705323700
Fax 7705320059
Enumeration date 2006-09-25
Last updated in NPPES 2016-06-27

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208D00000X General Practice Physician Primary 034385 GA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00489244C Medicaid GA
Copy-ready billing details
Provider: Robert Klassen, MD
NPI: 1104926377
Taxonomy: 208D00000X (General Practice Physician)
Address: 100 SPRING ST, Gainesville, GA, 30501

Other providers at this practice address

NPI Name Type Specialty Location
1801853460 Carol Holzhalb Individual Clinical Social Worker Gainesville, GA
1063450054 Warner Brock Individual Physical Therapist Gainesville, GA
1013157270 Christa Tullis Individual Occupational Therapist Gainesville, GA
1861636441 Amy Todd Individual Occupational Therapist Gainesville, GA

Verify this record

Cross-check NPI 1104926377 against the authoritative CMS record: view Mr. Robert W Klassen on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 Klassen?
Robert Klassen is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-06-27.