Robert W. Klassen, MD
General Practice Physician · Gainesville, GA
Robert W. Klassen, MD is a general practice physician with a practice address in Gainesville, Georgia, and NPI 1104926377, issued on Sep 25, 2006. Check the license (Georgia 034385, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert W. Klassen
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 034385 GA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Spring St, Gainesville, GA 30501
- Phone
- (770) 532-3700
- Enumerated
- Sep 25, 2006
- Record last updated
- Jun 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (770) 532-0059
- Medicaid ID
- 00489244C GA
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 316 in Georgia → Look up another NPI →
Also registered at 100 Spring St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Warner Brock, P.T.,CMDT, MBA, CEASPhysical Therapist1063450054
- Carol Holzhalb, PHD, LCSWClinical Social Worker1801853460
- Amy Todd, OTOccupational Therapist1861636441
- Christa Tullis, O.T.Occupational Therapist1013157270
Verify Robert W. Klassen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 034385Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average general practice physician in 2024
9,584 Medicare Part D claims for 388 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 541 claims were for opioids.
Most prescribed
- Levothyroxine Sodium394 claims
- Amlodipine Besylate360 claims
- Atorvastatin Calcium303 claims
- Gabapentin250 claims
- Lisinopril236 claims
- Hydrocodone-Acetaminophen228 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Robert W. Klassen among 316 general practice physician records in Georgia
Robert W. Klassen, MD is one of 316 general practice physician records with a practice address in Georgia. 49% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 68% newer
- In a Medicare fileYes · 49% of these records are
- In the CMS Doctors and Clinicians fileNo · 26% of these records are
- Record last updated2016 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in Georgia
There are 316 general practice physician records in Georgia.
All 316 in Georgia → Every provider in Gainesville → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Linda AkbarshahiGainesville, GA 305011275237935
- Rodolfo Carrillo, MDGainesville, GA 305011376633586
- James Green, MDGainesville, GA 305011871709840
- Amanda HendricksGainesville, GA 305011982354551
- Youngsuk HeoGainesville, GA 305011891631172
- Oluwafemi Olukayode, MDGainesville, GA 305011134822281
- Rodney Smith, MDGainesville, GA 305011144290917
- Carlos Tan, M.D.Gainesville, GA 305011215901855
Common questions
What is Robert W. Klassen, MD's NPI number?
Robert W. Klassen, MD's National Provider Identifier (NPI) is 1104926377, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert W. Klassen, MD located?
The NPPES record lists a practice address at 100 Spring St, Gainesville, GA, 30501. Phone: (770) 532-3700. Providers update this record themselves, so call before visiting.
How can I verify Robert W. Klassen, MD's license?
NPPES lists Georgia license number 034385, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert W. Klassen, MD prescribe under Medicare Part D?
In 2024, Robert W. Klassen, MD had 9,584 Medicare Part D claims for 388 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.