Active NPI
Charlotte R Larson
- Gastroenterology Physician
- Seattle, WA
National Provider Identifier
1891383238
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- MD.MD.61679252
- Practice address
- 1959 NE Pacific St Main Hospital
Seattle, WA 98195-3011 - Phone
- (206) 598-3300
- NPI assigned
- Dec 31, 2020
- 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 |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | MD.MD.61679252 | WA | Primary |
Addresses
Primary practice location
1959 NE Pacific St Main Hospital
Seattle, WA 98195-3011
Mailing address
1959 NE Pacific St Main Hospital
Seattle, WA 98195-0001
Phone (206) 598-3300
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in WA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20250904001817 | WA | Order and Referring Only - Gastroenterology | 8527560192 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1609372800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1753056000000",
"number": "1891383238",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1959 NE PACIFIC ST MAIN HOSPITAL",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981950001",
"telephone_number": "206-598-3300"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1959 NE PACIFIC ST MAIN HOSPITAL",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981953011",
"telephone_number": "206-598-3300"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LARSON",
"first_name": "CHARLOTTE",
"middle_name": "R",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-12-31",
"last_updated": "2025-07-21",
"certification_date": "2025-07-21",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "WA",
"license": "MD.MD.61679252",
"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 Jul 21, 2025; 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.