Active NPI
Gina Marie Demmerly, LDO
- Optician
- Seattle, WA
National Provider Identifier
1366319824
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Optician
- License
- DO60240657
- Practice address
- 4854 Rainier Ave S
Seattle, WA 98118-1742 - Phone
- (206) 722-3939
- NPI assigned
- Oct 20, 2025
- Sex
- Female
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Optician | 156FX1800X | DO60240657 | WA | Primary |
Addresses
Primary practice location
4854 Rainier Ave S
Seattle, WA 98118-1742
Mailing address
1125 E Olive St Apt 103
Seattle, WA 98122-8406
Phone (206) 658-3786
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)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| DO60240657 | WA | MD | Optician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| J & J Optometric Services | Single Specialty | Current | Accepting new patients |
Locations
4854 Rainier Ave S
Seattle, WA 98118
Phone (206) 619-2084
Organizations & group practices 1
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.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1760918400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1760918400000",
"number": "1366319824",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1125 E OLIVE ST APT 103",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981228406",
"telephone_number": "206-658-3786"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4854 RAINIER AVE S",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981181742",
"telephone_number": "206-722-3939"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DEMMERLY",
"first_name": "GINA",
"middle_name": "MARIE",
"credential": "LDO",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2025-10-20",
"last_updated": "2025-10-20",
"certification_date": "2025-10-20",
"status": "A"
},
"taxonomies": [
{
"code": "156FX1800X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Technician/Technologist, Optician",
"state": "WA",
"license": "DO60240657",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Seattle, WA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 20, 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.