Individual provider Active NPI

Bret Jason Spier, MD

  • Gastroenterology Physician
  • Bloomington, IN
National Provider Identifier
1710935309
Registry record updated Dec 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
01067154A Issued in IN
Practice address
550 S Landmark Ave
Bloomington, IN 47403-3239
Phone
(812) 333-5973
Fax
(812) 330-3681
NPI assigned
May 5, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 10, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 01067154A IN Primary

Addresses

Primary practice location

550 S Landmark Ave
Bloomington, IN 47403-3239

Mailing address

550 S Landmark Ave
Bloomington, IN 47403-3239
Phone (812) 333-5973

Other practice location 1

2900 16th St
Bedford, IN 47421-3510
Phone (812) 333-5973

Other identifiers 1

IdentifierTypeStateIssuer
200977220MedicaidIN

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address bspier@direct.iuhealth.org Direct
Direct Messaging Address bspier@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
I20100623000813 IN Practitioner - Gastroenterology 0345397816 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Iu Health Medical Group LLCGroup PAC ID 9638617913, 4,382 clinicians

Practice addresses (Care Compare)

2651 E Discovery Pkwy
Bloomington, IN 47408-9059
Phone (812) 353-9250

2900 16TH St
Bedford, IN 47421-3510
Phone (888) 484-3258

550 S Landmark Ave
Indiana University So in Phy LLC
Bloomington, IN 47403-3239
Phone (888) 484-3258

707 W 2ND St
Bloomington, IN 47403-2209
Phone (888) 484-3258

719 W 2ND St
Bloomington, IN 47403-2209
Phone (888) 484-3258

727 W 2ND St
Bloomington, IN 47403-2209
Phone (888) 484-3258

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy156
Upper gastrointestinal (GI) endoscopy for acid reflux373

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
01067154AINMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Iu Health Medical Group, LLC CurrentSince Jan 1, 2026 Accepting new patients

Locations

2900 16th St
Bedford, IN 47421
Phone (812) 275-1200

727 W 2nd St
Bloomington, IN 47403
Phone (812) 353-3450

995 S Clarizz Blvd
Bloomington, IN 47401
Phone (812) 353-3060

550 S Landmark Ave
Bloomington, IN 47403
Phone (812) 330-3688

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

221 S 6th St
Terre Haute, IN 47807
Phone (812) 242-3157

Interoperability endpoints

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

Organizations & group practices 2

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 4

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": "1146787200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1710935309",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "550 S LANDMARK AVE",
            "city": "BLOOMINGTON",
            "state": "IN",
            "postal_code": "474033239",
            "telephone_number": "812-333-5973",
            "fax_number": "812-330-3681"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "550 S LANDMARK AVE",
            "city": "BLOOMINGTON",
            "state": "IN",
            "postal_code": "474033239",
            "telephone_number": "812-333-5973",
            "fax_number": "812-330-3681"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2900 16th St",
            "address_purpose": "LOCATION",
            "city": "Bedford",
            "state": "IN",
            "postal_code": "474213510",
            "country_code": "US",
            "telephone_number": "812-333-5973",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SPIER",
        "first_name": "BRET",
        "middle_name": "JASON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-05",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IN",
            "license": "01067154A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200977220",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "bspier@direct.iuhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2900 16th St",
            "city": "Bedford",
            "state": "IN",
            "country_code": "US",
            "postal_code": "474213510",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "bspier@direct.iuhealth.org",
            "affiliation": "N",
            "address_1": "550 S Landmark Ave",
            "city": "Bloomington",
            "state": "IN",
            "country_code": "US",
            "postal_code": "474033239",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Bloomington, IN

Sources for this page

Verify at the official NPI Registry.