Individual provider Active NPI

Michael J Breyer, MD

  • Emergency Medicine Physician
  • Denver, CO
National Provider Identifier
1063490878
Registry record updated Nov 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
DR.0049474 Issued in CO
Practice address
660 Bannock St
Denver, CO 80204-4506
Phone
(303) 739-1211
Fax
(303) 602-4560
NPI assigned
Jan 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 19, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X MD228106 OR
Emergency Medicine Physician 207P00000X C10007162 DE
Emergency Medicine Physician 207P00000X DR.0049474 CO Primary

Addresses

Primary practice location

660 Bannock St
Denver, CO 80204-4506

Mailing address

2262 S Loveland St
Lakewood, CO 80228-6435
Phone (302) 545-4423

Other practice location 1

2850 SE Powell Valley Rd
Gresham, OR 97080-1494
Phone (503) 666-5050

Other identifiers 1

IdentifierTypeStateIssuer
1000028561MedicaidDE

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mbreyer6754@direct.dhha.org Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO, OR2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20110405000815 CO Practitioner - Emergency Medicine 7113998519 Reassigns benefits to 2 organizations
I20251203003540 OR Practitioner - Emergency Medicine 7113998519 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Legacy Clinics LLCGroup PAC ID 0244144004, 714 clinicians

Practice addresses (Care Compare)

2850 SE Powell Valley Rd
Gresham, OR 97080-1494
Phone (503) 666-5050

777 Bannock St
Denver, CO 80204-4507
Phone (303) 436-6000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
96.65 of 100Reported as group
Quality
92.15
Promoting interoperability
100
Improvement activities
40
Cost
80.02

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
DR.0049474COMDEmergency Medicine Physician
C10007162DEMDEmergency Medicine Physician
MD228106ORMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Denver Health and Hospital Authority CurrentSince Dec 1, 2010 Accepting new patients
Denver Health and Hospital Authority CurrentSince Nov 14, 2019 Accepting new patients
Denver Health and Hospital Authority CurrentSince Dec 1, 2010 Accepting new patients
Legacy Clinics LLC CurrentSince Nov 19, 2025 Accepting new patients
Doctors for Emergency Service Emergency Medicine Past Accepting new patients
Delmar Emergency Specialists PA Emergency Medicine Past Accepting new patients

Locations

777 Bannock St
#1926
Denver, CO 80204

1545 California St
Denver, CO 80202
Phone (347) 325-0338

777 Bannock St
Denver, CO 80204

777 Bannock St
#3240
Denver, CO 80204
Phone (303) 602-2714

2870 SW Cedar Hills Blvd
Beaverton, OR 97005
Phone (503) 646-9222

2850 SE Powell Valley Rd
Gresham, OR 97080
Phone (503) 666-5050

1130 NW 22nd Ave
Ste 220
Portland, OR 97210
Phone (503) 413-4134

Interoperability endpoints

  • Direct secure messaging: mbreyer6754@direct.dhha.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 3

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": "1136246400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1063490878",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2262 S LOVELAND ST",
            "city": "LAKEWOOD",
            "state": "CO",
            "postal_code": "802286435",
            "telephone_number": "302-545-4423"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "660 BANNOCK ST",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802044506",
            "telephone_number": "303-739-1211",
            "fax_number": "303-602-4560"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2850 SE Powell Valley Rd",
            "address_purpose": "LOCATION",
            "city": "Gresham",
            "state": "OR",
            "postal_code": "970801494",
            "country_code": "US",
            "telephone_number": "503-666-5050",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BREYER",
        "first_name": "MICHAEL",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-03",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OR",
            "license": "MD228106",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "DE",
            "license": "C10007162",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CO",
            "license": "DR.0049474",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1000028561",
            "state": "DE"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mbreyer6754@direct.dhha.org",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "660 Bannock St",
            "city": "Denver",
            "state": "CO",
            "country_code": "US",
            "postal_code": "802044506",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.