Individual provider Active NPI

Margaret A Hollar, DO

  • Neuroradiology Physician
  • Indianapolis, IN
National Provider Identifier
1376546770
Registry record updated Dec 2, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neuroradiology PhysicianTaxonomy code 2085N0700X
License
02003362A Issued in IN
Practice address
714 N Senate Ave
Ste Ef100
Indianapolis, IN 46202-3763
Phone
(317) 715-6402
Fax
(317) 715-6415
NPI assigned
May 31, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 2, 2021

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Neuroradiology Physician 2085N0700X 02003362A IN Primary
Diagnostic Radiology Physician 2085R0202X 02003362 IN
Diagnostic Radiology Physician 2085R0202X L4443 TX

Addresses

Primary practice location

714 N Senate Ave
Ste Ef100
Indianapolis, IN 46202-3763

Mailing address

250 N Shadeland Ave
Indianapolis, IN 46219-4959

Other identifiers 3

IdentifierTypeStateIssuer
200911690MedicaidIN
157975701MedicaidTX
P00632708OtherINRAILROAD MEDIARE

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mhollar@direct.iuhealth.org

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20080925000491 IN Practitioner - Diagnostic Radiology 0345153888 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Michigan State University College of Osteopathic Medicine, 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Indiana University Radiology Associates IncGroup PAC ID 7315922267, 213 clinicians
Iu Health Medical Group LLCGroup PAC ID 9638617913, 4,382 clinicians

Practice addresses (Care Compare)

11725 N Illinois St
Suite 275
Carmel, IN 46032-4656
Phone (317) 817-1114

1701 N Senate Blvd
Indianapolis, IN 46202-1239
Phone (888) 484-3258

Hospital & facility affiliations

  • Indiana University Health Hospital, Indianapolis, IN, CCN 150056
  • Indiana University Health Bloomington Hospital Hospital, Bloomington, IN, CCN 150051
  • Indiana University Health Ball Memorial Hospital Hospital, Muncie, IN, CCN 150089
  • Iu Health West Hospital Hospital, Avon, IN, CCN 150158
  • Indiana University Health North Hospital Hospital, Carmel, IN, CCN 150161

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
02003362INMDDiagnostic Radiology Physician
L4443TXMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Indiana University Radiology Associates, Inc. Neuroradiology CurrentSince May 17, 2009 Accepting new patients
Iu Health Medical Group, LLC CurrentSince Oct 1, 2025 Accepting new patients
Radiology Consultants of North Dallas PA Diagnostic Radiology Past Accepting new patients
Borg Imaging Group LLP Past Accepting new patients
Borg & Ide Imaging, PC Diagnostic Radiology Past Accepting new patients
Indiana Radiology Partners, Inc Neuroradiology Past Accepting new patients

Locations

5924 Reliable Pkwy
Chicago, IL 60686

11725 Illinois St
Ste 275
Carmel, IN 46032
Phone (317) 688-4864

11725 Illinois St
Ste 355
Carmel, IN 46032
Phone (317) 814-4533

250 N Shadeland Ave
Indianapolis, IN 46219
Phone (317) 948-9174

714 N Senate Ave
Ste EF100
Indianapolis, IN 46202
Phone (317) 715-6402

1701 Senate Blvd
Indianapolis, IN 46202
Phone (317) 612-2754

250 N Shadeland Ave
Ste 200
Indianapolis, IN 46219
Phone (317) 962-4836

1701 Senate Blvd
#C6
Indianapolis, IN 46202
Phone (317) 962-9000

1000 S Main St
Tipton, IN 46072
Phone (765) 675-8500

Interoperability endpoints

  • Direct secure messaging: mhollar@direct.iuhealth.org

Organizations & group practices 6

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

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": "1117497600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1638403200000",
    "number": "1376546770",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 N SHADELAND AVE",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462194959"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "714 N SENATE AVE",
            "address_2": "STE EF100",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462023763",
            "telephone_number": "317-715-6402",
            "fax_number": "317-715-6415"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLLAR",
        "first_name": "MARGARET",
        "middle_name": "A",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-05-31",
        "last_updated": "2021-12-02",
        "certification_date": "2021-12-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085N0700X",
            "taxonomy_group": "",
            "desc": "Radiology, Neuroradiology",
            "state": "IN",
            "license": "02003362A",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "IN",
            "license": "02003362",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "TX",
            "license": "L4443",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200911690",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "157975701",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDIARE",
            "identifier": "P00632708",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mhollar@direct.iuhealth.org",
            "affiliation": "N",
            "address_1": "714 N Senate Ave",
            "address_2": "Ste EF100",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462023763",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.