NPPES file of Aug 9, 2026

Zachary William Abraham Klaassen, M.D.

Urology Physician · Augusta, GA

Zachary William Abraham Klaassen, M.D. is a urology physician with a practice address in Augusta, Georgia, and NPI 1891082772, issued on Jun 29, 2011. Check the license (Georgia 081333, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891082772
Name
Zachary William Abraham Klaassen
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
081333 GA
Self-reported in NPPES; status is on the state search
Practice location
1120 15TH St, Augusta, GA 30912
Phone
(706) 721-2519
Enumerated
Jun 29, 2011
Record last updated
Mar 27, 2026
Medicare enrollment
Enrolled (PECOS I20180924003678); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1120 15TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Megan AbadomUrology Physician1093649022
  2. Rahat AbbasiInternal Medicine Physician1578057261
  3. Matthew Abbott, MDNeurology Physician1417572959
  4. Da'Ad AbdallaPediatrics Physician1841166451
  5. Zahraa Abdul Sater, MBBSEmergency Medicine Physician1467731125
  6. Youmna Abourady, MDPediatrics Physician1144146960

Verify Zachary William Abraham Klaassen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 081333
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Georgia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

84% fewer Medicare Part D claims than the average urology physician in 2024

219 Medicare Part D claims for 61 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Zachary Klaassen219
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl79 claims
  2. Finasteride41 claims
  3. Erleada23 claims
  4. Oxybutynin Chloride Er15 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 77.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score72.0
  2. Costout of 100 · 30%60.7
  3. Promoting interoperabilityout of 100 · 25%92.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $258,921.30

219 payments; by number, the most common kind was food and beverage; the largest payer was Teleflex LLC. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zachary Klaassen$258,921
  2. Specialty average$3,800

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Wellstar Medical Group LLCAugusta, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Zachary William Abraham Klaassen among 400 urology physician records in Georgia

Zachary William Abraham Klaassen, M.D. is one of 400 urology physician records with a practice address in Georgia. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.

  • NPI issued2011 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2010 · median 2006 among the 281 with a school on file
  • Record last updated2026 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in Georgia

There are 400 urology physician records in Georgia.

The 8 urology physician records with the nearest ZIP codes

  1. Megan AbadomAugusta, GA 309121093649022
  2. Ashanda Esdaille, M.D.Augusta, GA 309121982081436
  3. Benjamin Harper, M.D.Augusta, GA 309121154776813
  4. Sherita King, MDAugusta, GA 309121700047982
  5. Ronald Lewis, MDAugusta, GA 309121588773766
  6. Edward Machen, MDAugusta, GA 309121255060232
  7. William Reed, MDAugusta, GA 309121528634193
  8. Lanette Rickborn, MDAugusta, GA 309121174985444

Common questions

What is Zachary William Abraham Klaassen, M.D.'s NPI number?

Zachary William Abraham Klaassen, M.D.'s National Provider Identifier (NPI) is 1891082772, issued on Jun 29, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Zachary William Abraham Klaassen, M.D. located?

The NPPES record lists a practice address at 1120 15TH St, Augusta, GA, 30912. Phone: (706) 721-2519. Providers update this record themselves, so call before visiting.

How can I verify Zachary William Abraham Klaassen, M.D.'s license?

NPPES lists Georgia license number 081333, 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 Zachary William Abraham Klaassen, M.D. prescribe under Medicare Part D?

In 2024, Zachary William Abraham Klaassen, M.D. had 219 Medicare Part D claims for 61 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

What is Zachary William Abraham Klaassen, M.D.'s MIPS final score?

The 2023 MIPS final score is 77.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.