Active NPI
Mountainside Oral Surgery LLC
- Oral and Maxillofacial Surgery (Dentist)
- Portland, OR
National Provider Identifier
1275441453
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)
- Legal business name
- MOUNTAINSIDE ORAL SURGERY LLC
- Practice address
- 4401 SW Vermont St
Portland, OR 97219-1020 - Phone
- (503) 297-4102
- NPI assigned
- Aug 31, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Benjamin James, DDS
- Title
- Owner
- Phone
- (541) 666-6091
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Oral and Maxillofacial Surgery (Dentist) | 1223S0112X | Primary |
Addresses
Primary practice location
4401 SW Vermont St
Portland, OR 97219-1020
Mailing address
1609 SE Barberry Ave
Dallas, OR 97338-1974
Other practice location 1
2690 May St Ste 102
Hood River, OR 97031-9786
Phone (503) 297-4102
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1788134400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1788134400000",
"number": "1275441453",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1609 SE BARBERRY AVE",
"city": "DALLAS",
"state": "OR",
"postal_code": "973381974"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4401 SW VERMONT ST",
"city": "PORTLAND",
"state": "OR",
"postal_code": "972191020",
"telephone_number": "503-297-4102"
}
],
"practiceLocations": [
{
"address_1": "2690 May St Ste 102",
"address_purpose": "LOCATION",
"city": "Hood River",
"state": "OR",
"postal_code": "970319786",
"country_code": "US",
"telephone_number": "503-297-4102",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"organization_name": "MOUNTAINSIDE ORAL SURGERY LLC",
"organizational_subpart": "NO",
"enumeration_date": "2026-08-31",
"last_updated": "2026-08-31",
"certification_date": "2026-08-30",
"status": "A",
"authorized_official_last_name": "JAMES",
"authorized_official_first_name": "BENJAMIN",
"authorized_official_title_or_position": "OWNER",
"authorized_official_telephone_number": "541-666-6091",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "DDS"
},
"taxonomies": [
{
"code": "1223S0112X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Dentist, Oral and Maxillofacial Surgery",
"state": null,
"license": null,
"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 Aug 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.