Active NPI
Michael J Breyer, MD
- Emergency Medicine Physician
- Denver, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- DR.0049474
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1000028561 | Medicaid | DE |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | mbreyer6754@direct.dhha.org | Health Information Exchange (HIE) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO, OR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
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
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 100
- 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
| License | State | Type | Specialty |
|---|---|---|---|
| DR.0049474 | CO | MD | Emergency Medicine Physician |
| C10007162 | DE | MD | Emergency Medicine Physician |
| MD228106 | OR | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Denver Health and Hospital Authority | Current | Accepting new patients | |
| Denver Health and Hospital Authority | Current | Accepting new patients | |
| Denver Health and Hospital Authority | Current | Accepting new patients | |
| Legacy Clinics LLC | Current | 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
- 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.
-
- General Practice Physician
- Denver, CO
- NPI 1477569838
-
- Clinic/Center
- Portland, OR
- NPI 1902827272
-
- Urgent Care Clinic/Center
- Denver, CO
- NPI 1659830032
-
- Psychiatric Hospital Unit
- Denver, CO
- NPI 1689624942
-
- Emergency Medicine Physician
- Elkton, MD
- NPI 1851361224
-
- Emergency Medicine Physician
- Newark, DE
- NPI 1750369674
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Emergency Care Clinic/Center
- Winter Park, CO
- NPI 1467762435
Hospital
-
- General Acute Care Hospital
- Denver, CO
- NPI 1689624686
-
- Psychiatric Hospital Unit
- Denver, CO
- NPI 1689624942
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.