NPIMap

Individual provider Active NPI

Jan O Sonander, MD

  • Family Medicine Physician
  • Santa Rosa, CA
National Provider Identifier
1982763959
Registry record updated Aug 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
G56178 Issued in CA
Practice address
990 Sonoma Ave Ste 19
Santa Rosa, CA 95404-4813
Phone
(707) 542-8700
Fax
(707) 528-8700
NPI assigned
Dec 6, 2006
Last updated
Aug 26, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 26, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X G56178 CA Primary

Addresses

Primary practice location

990 Sonoma Ave Ste 19
Santa Rosa, CA 95404-4813

Mailing address

990 Sonoma Ave Ste 19
Santa Rosa, CA 95404-4813
Phone (707) 542-8700

Other identifiers 1

IdentifierTypeStateIssuer
00G561780OtherCAMEDICARE GROUP PTAN

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040701000712 CA Practitioner - Family Practice 3870570450 Reassigns benefits to 1 organization
Practice locations: Santa Rosa, CA

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
University of California, Davis School of Medicine, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

173 E Webster St
Colusa, CA 95932-2949
Phone (209) 287-6308

990 Sonoma Ave
Suite 19
Santa Rosa, CA 95404-4813
Phone (707) 542-8700

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
74.97 of 100Reported as individual
Quality
53.33
Improvement activities
40
Cost
78.8

Procedures performed for Medicare patients

ProcedureNumber of procedures
Melanoma (skin cancer) excision1-10
Removal of tissue1-10
Removal of skin lesions80
Removal or shaving of skin growth1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
56178CAMDOrthodontics and Dentofacial Orthopedic Dentist
G56178CAMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
American Specialty Physicians Group Inc CurrentSince Jan 3, 2024 Accepting new patients
St. Joseph Health Northern California, LLC Past Accepting new patients

Locations

151 E Webster St
Ste B
Colusa, CA 95932
Phone (209) 287-6308

700 17th St
Ste 205
Modesto, CA 95354
Phone (209) 248-7851

Organizations & group practices 3

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 8

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": "1165363200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756166400000",
    "number": "1982763959",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "990 SONOMA AVE STE 19",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954044813",
            "telephone_number": "707-542-8700",
            "fax_number": "707-528-8700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "990 SONOMA AVE STE 19",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954044813",
            "telephone_number": "707-542-8700",
            "fax_number": "707-528-8700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SONANDER",
        "first_name": "JAN",
        "middle_name": "O",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-12-06",
        "last_updated": "2025-08-26",
        "certification_date": "2025-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "G56178",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP PTAN",
            "identifier": "00G561780",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Santa Rosa, CA

Sources for this page

Verify at the official NPI Registry.