NPIMap

Individual provider Active NPI

Zachary William Abraham Klaassen, M.D.

  • Urology Physician
  • Augusta, GA
National Provider Identifier
1891082772
Registry record updated Mar 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urology PhysicianTaxonomy code 208800000X
License
081333 Issued in GA
Practice address
1120 15TH St
Augusta, GA 30912-0004
Phone
(706) 721-2519
NPI assigned
Jun 29, 2011
Last updated
Mar 27, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 27, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 081333 GA
Urology Physician 208800000X 081333 GA Primary

Addresses

Primary practice location

1120 15TH St
Augusta, GA 30912-0004

Mailing address

1120 15TH St
Augusta, GA 30912-0004
Phone (706) 721-8623

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in GA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20180924003678 GA Practitioner - Urology 8426309808 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Urology
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Wellstar Medical Group LLCGroup PAC ID 6709065402, 3,059 clinicians

Practice addresses (Care Compare)

1120 15TH St
Augusta, GA 30912-0004
Phone (706) 721-8623

4300 University Pkwy
Evans, GA 30809-3063
Phone (706) 721-8623

5150 Stilesboro N W Rd
Suite 220
Kennesaw, GA 30152-7742
Phone (770) 424-8222

989 Saint Sebastian Way
Augusta, GA 30912-0004
Phone (706) 721-2171

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
93.93 of 100Reported as apm
Quality
82.14
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Prostate resection1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Au Medical Associates Inc CurrentSince Aug 13, 2018 Accepting new patients
Wellstar Medical Group, LLC Multi-Specialty CurrentSince Sep 1, 2023 Accepting new patients
Wellstar Medical Group, LLC Multi-Specialty Current Accepting new patients
Au Medical Associates Inc Multi-Specialty CurrentSince Aug 13, 2018 Accepting new patients
Au Medical Center, Inc Multi-Specialty Past Accepting new patients

Locations

1120 15th St
Augusta, GA 30912
Phone (706) 721-3873

1120 15th St
Ste BI1056
Augusta, GA 30912
Phone (706) 721-2785

5150 Stilesboro Rd NW
Ste 220
Kennesaw, GA 30152
Phone (770) 424-8222

120 Gordon St
Washington, GA 30673
Phone (706) 678-1177

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1309305600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774569600000",
    "number": "1891082772",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1120 15TH ST",
            "city": "AUGUSTA",
            "state": "GA",
            "postal_code": "309120004",
            "telephone_number": "706-721-8623",
            "fax_number": "706-721-1459"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1120 15TH ST",
            "city": "AUGUSTA",
            "state": "GA",
            "postal_code": "309120004",
            "telephone_number": "706-721-2519"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLAASSEN",
        "first_name": "ZACHARY",
        "middle_name": "WILLIAM ABRAHAM",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-06-29",
        "last_updated": "2026-03-27",
        "certification_date": "2026-03-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "GA",
            "license": "081333",
            "primary": false
        },
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "GA",
            "license": "081333",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Augusta, GA

Sources for this page

Verify at the official NPI Registry.