Active NPI
McKella Merlot Howerton, PA (ASCP)
- Pathology Specialist/Technologist
- Tukwila, WA
National Provider Identifier
1316800550
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pathology Specialist/Technologist
- License
- 3587
- Practice address
- 12501 E Marginal Way S Ste 200
Tukwila, WA 98168-5163 - Phone
- (206) 576-6050
- NPI assigned
- Dec 4, 2025
- 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 |
|---|---|---|---|---|
| Pathology Specialist/Technologist | 246Q00000X | 3587 | WA | Primary |
Addresses
Primary practice location
12501 E Marginal Way S Ste 200
Tukwila, WA 98168-5163
Mailing address
12501 E Marginal Way S Ste 200
Tukwila, WA 98168-5163
Phone (206) 576-6050
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
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 3587 | WA | MD | Optometrist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1764806400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764806400000",
"number": "1316800550",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "12501 E MARGINAL WAY S STE 200",
"city": "TUKWILA",
"state": "WA",
"postal_code": "981685163",
"telephone_number": "206-576-6050"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "12501 E MARGINAL WAY S STE 200",
"city": "TUKWILA",
"state": "WA",
"postal_code": "981685163",
"telephone_number": "206-576-6050"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HOWERTON",
"first_name": "MCKELLA",
"middle_name": "MERLOT",
"credential": "PA (ASCP)",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-12-04",
"last_updated": "2025-12-04",
"certification_date": "2025-12-04",
"status": "A"
},
"taxonomies": [
{
"code": "246Q00000X",
"taxonomy_group": "",
"desc": "Specialist/Technologist, Pathology",
"state": "WA",
"license": "3587",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Tukwila, WA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 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.