NPIMap

Individual provider Active NPI

Robert A Malinzak, MD

  • Orthopaedic Surgery Physician
  • Indianapolis, IN
National Provider Identifier
1942286828
Registry record updated Oct 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
01058664A Issued in IN
Practice address
6920 Gatwick Dr Ste 200
Indianapolis, IN 46241-9619
Phone
(317) 455-1064
Fax
(317) 455-1204
NPI assigned
Dec 21, 2005
Last updated
Oct 1, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 1, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 01058664A IN Primary

Addresses

Primary practice location

6920 Gatwick Dr Ste 200
Indianapolis, IN 46241-9619

Mailing address

3600 W Bethel Ave
Muncie, IN 47304-5407

Other practice location 1

541 S Landmark Ave
Bloomington, IN 47403-3239
Phone (317) 455-1064

Other identifiers 1

IdentifierTypeStateIssuer
200973560MedicaidIN

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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
I20040923000875 IN Practitioner - Orthopedic Surgery 9032187307 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Duke University School of Medicine, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Indiana Joint Replacement InstituteGroup PAC ID 8123400058, 25 clinicians

Practice addresses (Care Compare)

14065 Westinghouse Dr
Indiana Joint Replacement
Noblesville, IN 46060-9448
Phone (317) 620-0232

1725 N 5TH St
Apands Clinic Bone and Joint Center
Terre Haute, IN 47804-4010
Phone (812) 242-3005

9460 E 146TH St
Noblesville, IN 46060-4966
Phone (317) 620-0232

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hip replacement19
Knee replacement27
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10
Upper limb (arm) arthroscopy (minimally invasive joint repair)1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Indiana Joint Replacement Institute Orthopaedic Surgery CurrentSince May 19, 2024 Accepting new patients
Union Associated Physicians Clinic LLC CurrentSince Sep 15, 2024 Accepting new patients
Indiana Joint Replacement Institute Orthopaedic Surgery CurrentSince May 19, 2024 Accepting new patients
Union Associated Physicians Clinic, LLC Orthopaedic Surgery CurrentSince Sep 15, 2024 Accepting new patients
Joint Replacement Surgeons of Indiana Orthopaedic Surgery Past Accepting new patients
Major Hospital Past Accepting new patients
St. Francis Medical Group, LLC Past Accepting new patients

Locations

1199 Hadley Rd
Mooresville, IN 46158
Phone (317) 831-2273

14065 Westinghouse Dr
Noblesville, IN 46060
Phone (317) 620-0232

9460 E 146th St
Noblesville, IN 46060
Phone (317) 583-3741

1725 N 5th St
Terre Haute, IN 47804
Phone (812) 232-6646

221 S 6th St
Terre Haute, IN 47807
Phone (812) 242-3115

Interoperability endpoints

  • Direct secure messaging: dmalinzak4058@direct.franciscanalliance.org
  • Direct secure messaging: rmalinzak4058@direct.franciscanalliance.org
  • Direct secure messaging: robert.malinzak.1@22724.direct.athenahealth.com

Organizations & group practices 7

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": "1135123200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790812800000",
    "number": "1942286828",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3600 W BETHEL AVE",
            "city": "MUNCIE",
            "state": "IN",
            "postal_code": "473045407"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6920 GATWICK DR STE 200",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462419619",
            "telephone_number": "317-455-1064",
            "fax_number": "317-455-1204"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "541 S Landmark Ave",
            "address_purpose": "LOCATION",
            "city": "Bloomington",
            "state": "IN",
            "postal_code": "474033239",
            "country_code": "US",
            "telephone_number": "317-455-1064",
            "fax_number": "317-455-1204",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MALINZAK",
        "first_name": "ROBERT",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-21",
        "last_updated": "2026-10-01",
        "certification_date": "2026-10-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "IN",
            "license": "01058664A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200973560",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.