Active NPI
Grace Mavromatis
- Clinical Social Worker
- Portland, OR
National Provider Identifier
1013449271
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- L10996
- Practice address
- 5441 S Macadam Ave # 5450
Portland, OR 97239-6106 - Phone
- (541) 900-4285
- NPI assigned
- Mar 28, 2017
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | L10996 | OR | Primary |
Addresses
Primary practice location
5441 S Macadam Ave # 5450
Portland, OR 97239-6106
Mailing address
5441 S Macadam Ave # 5450
Portland, OR 97239-6106
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| County of Clackamas Office of County Auditor | Current | Accepting new patients | |
| Clackamas County | Current | Accepting new patients | |
| Grace Mavromatis, LLC | Clinical | Current | Accepting new patients |
| Lifeworks NW | Past | Accepting new patients | |
| Roseburg Therapy LLC | Clinical | Past | Accepting new patients |
Locations
2051 Kaen Rd
Ste 367
Oregon City, OR 97045
Phone (503) 742-5300
998 Courthouse Rd
Oregon City, OR 97045
Phone (503) 655-8470
5441 S Macadam Ave
Portland, OR 97239
Phone (541) 402-8932
39740 Pleasant St
Sandy, OR 97055
Phone (503) 563-7679
Organizations & group practices 5
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.
-
- Federally Qualified Health Center (FQHC)
- Oregon City, OR
- NPI 1841443587
-
- Clinical Social Worker
- Portland, OR
- NPI 1730045584
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Milwaukie, OR
- NPI 1245269315
-
- Mental Health Counselor
- Portland, OR
- NPI 1467408013
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1490659200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1776297600000",
"number": "1013449271",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5441 S MACADAM AVE # 5450",
"city": "PORTLAND",
"state": "OR",
"postal_code": "972396106"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5441 S MACADAM AVE # 5450",
"city": "PORTLAND",
"state": "OR",
"postal_code": "972396106",
"telephone_number": "541-900-4285"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAVROMATIS",
"first_name": "GRACE",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2017-03-28",
"last_updated": "2026-04-16",
"certification_date": "2026-04-16",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "OR",
"license": "L10996",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Portland, OR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 2026; 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.