Individual provider Active NPI

Jenna Withrow, PA-C

  • Physician Assistant
  • Santa Barbara, CA
National Provider Identifier
1356813299
Registry record updated May 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
56187 Issued in CA
Practice address
2416 Castillo St Ste C
Santa Barbara, CA 93105-5305
Phone
(805) 965-5588
Fax
(805) 618-2688
NPI assigned
Dec 17, 2018
Last updated
May 5, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 5, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 56187 CA Primary

Addresses

Primary practice location

2416 Castillo St Ste C
Santa Barbara, CA 93105-5305

Mailing address

2416 Castillo St Ste C
Santa Barbara, CA 93105-5305
Phone (805) 965-5588

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190503001637 CA Practitioner - Physician Assistant 3870835218 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
William R. Gallivan, Jr., M.D., Inc.Group PAC ID 8527380161, 4 clinicians

Practice addresses (Care Compare)

2040 Viborg Rd
Suite 230
Solvang, CA 93463-2272
Phone (805) 220-6020

320 W Junipero St
Santa Barbara, CA 93105-4305
Phone (805) 220-6020

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
46.49 of 100Reported as group
Quality
34.52
Promoting interoperability
0
Improvement activities
40
Cost
70.46

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
56187CAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Alta Orthopaedic Medical Group Inc Single Specialty CurrentSince Mar 7, 2022 Accepting new patients

Locations

511 Bath St
Santa Barbara, CA 93101
Phone (805) 963-9377

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/1272/brand/1/csg/1/fhir/r4
  • Direct secure messaging: jenna.withrow@7649886142468.direct.elationemr.com

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1545004800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1356813299",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2416 CASTILLO ST STE C",
            "city": "SANTA BARBARA",
            "state": "CA",
            "postal_code": "931055305",
            "telephone_number": "805-965-5588",
            "fax_number": "805-618-2688"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2416 CASTILLO ST STE C",
            "city": "SANTA BARBARA",
            "state": "CA",
            "postal_code": "931055305",
            "telephone_number": "805-965-5588",
            "fax_number": "805-618-2688"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WITHROW",
        "first_name": "JENNA",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-12-17",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "56187",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Santa Barbara, CA

Sources for this page

Verify at the official NPI Registry.