Active NPI
Katherine Barnes Duncan, PHARMD
- Pharmacist
- Santa Rosa, CA
National Provider Identifier
1083918973
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pharmacist
- License
- 54262
- Practice address
- 144 Stony Point Rd
Santa Rosa, CA 95401-4122 - Phone
- (707) 521-4590
- Fax
- (707) 521-4599
- NPI assigned
- Jan 6, 2011
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pharmacotherapy Pharmacist | 1835P1200X | 54262 | CA | |
| Ambulatory Care Pharmacist | 1835P2201X | 54262 | CA | |
| Pharmacist | 183500000X | 54262 | CA | Primary |
| Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | 1835P0018X | 54262 | CA |
Addresses
Primary practice location
144 Stony Point Rd
Santa Rosa, CA 95401-4122
Mailing address
144 Stony Point Rd
Santa Rosa, CA 95401-4122
Phone (707) 521-4590
Other names 1
- Katherine Barnes
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
- Doctor of Pharmacy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 54262 | CA | MD | General Practice Dentistry |
Interoperability endpoints
- kduncan764133@direct.ochin.org
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1294272000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784160000000",
"number": "1083918973",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "144 STONY POINT RD",
"city": "SANTA ROSA",
"state": "CA",
"postal_code": "954014122",
"telephone_number": "707-521-4590",
"fax_number": "707-521-4599"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "144 STONY POINT RD",
"city": "SANTA ROSA",
"state": "CA",
"postal_code": "954014122",
"telephone_number": "707-521-4590",
"fax_number": "707-521-4599"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DUNCAN",
"first_name": "KATHERINE",
"middle_name": "BARNES",
"name_prefix": "Dr.",
"credential": "PHARMD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2011-01-06",
"last_updated": "2026-07-16",
"certification_date": "2026-07-16",
"status": "A"
},
"taxonomies": [
{
"code": "1835P1200X",
"taxonomy_group": "",
"desc": "Pharmacist, Pharmacotherapy",
"state": "CA",
"license": "54262",
"primary": false
},
{
"code": "1835P2201X",
"taxonomy_group": "",
"desc": "Pharmacist, Ambulatory Care",
"state": "CA",
"license": "54262",
"primary": false
},
{
"code": "183500000X",
"taxonomy_group": "",
"desc": "Pharmacist",
"state": "CA",
"license": "54262",
"primary": true
},
{
"code": "1835P0018X",
"taxonomy_group": "",
"desc": "Pharmacist, Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist",
"state": "CA",
"license": "54262",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "KATHERINE",
"last_name": "BARNES",
"credential": "PHARMD",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Santa Rosa, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.