Active NPI
Christopher Lee Cowan, M.D.
- Specialist
- Clackamas, OR
National Provider Identifier
1508079088
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Specialist
- License
- G64589
- Practice address
- 10100 SE Sunnyside Road
Clackamas, OR 97015 - Phone
- (503) 571-4970
- NPI assigned
- May 8, 2007
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Specialist | 174400000X | G64589 | CA | Primary |
| Health Maintenance Organization | 302R00000X | MD22737 | OR | |
| Health Maintenance Organization | 302R00000X | MD00036973 | WA |
Addresses
Primary practice location
10100 SE Sunnyside Road
Clackamas, OR 97015
Mailing address
9908 SE Mt Scott Blvd
Portland, OR 97266
Phone (503) 841-5055
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G64589 | CA | MD | Specialist |
| MD22737 | OR | MD | Health Maintenance Organization |
| MD00036973 | WA | MD | Health Maintenance Organization |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1178582400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1508079088",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "9908 SE MT SCOTT BLVD",
"city": "PORTLAND",
"state": "OR",
"postal_code": "97266",
"telephone_number": "503-841-5055"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "10100 SE SUNNYSIDE ROAD",
"city": "CLACKAMAS",
"state": "OR",
"postal_code": "97015",
"telephone_number": "503-571-4970"
}
],
"practiceLocations": [],
"basic": {
"last_name": "COWAN",
"first_name": "CHRISTOPHER",
"middle_name": "LEE",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-05-08",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "174400000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Specialist",
"state": "CA",
"license": "G64589",
"primary": true
},
{
"code": "302R00000X",
"taxonomy_group": "",
"desc": "Health Maintenance Organization",
"state": "OR",
"license": "MD22737",
"primary": false
},
{
"code": "302R00000X",
"taxonomy_group": "",
"desc": "Health Maintenance Organization",
"state": "WA",
"license": "MD00036973",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Clackamas, OR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.