Individual provider Active NPI

Stephen Kotarek, PA

  • Medical Physician Assistant
  • Marysville, CA
National Provider Identifier
1235371915
Registry record updated Nov 25, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Physician AssistantTaxonomy code 363AM0700X
License
PA19292 Issued in CA
Practice address
414 G St Ste 221
Marysville, CA 95901-5670
Phone
(916) 733-5090
NPI assigned
Mar 27, 2009
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 25, 2019

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Physician Assistant 363AM0700X PA19292 CA Primary

Addresses

Primary practice location

414 G St Ste 221
Marysville, CA 95901-5670

Mailing address

414 G St Ste 221
Marysville, CA 95901-5670

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
I20130827000059 CA Practitioner - Physician Assistant 6406099290 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Northbay Health Medical FoundationGroup PAC ID 3274010871, 207 clinicians

Practice addresses (Care Compare)

1000 Nut Tree Rd
Vacaville, CA 95687-4100
Phone (707) 624-7000

101 Main St
Winters, CA 95694-1930
Phone (707) 646-4000

1020 Nut Tree Rd
Vacaville, CA 95687-4100

1679 E Monte Vista Ave
Suite 104
Vacaville, CA 95688-3123
Phone (707) 624-7410

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
19292CAMDMassage Therapist
PA19292CAMDMedical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Northbay Health Medical Foundation CurrentSince Jan 1, 2026 Accepting new patients
Sutter Valley Medical Foundation CurrentSince Dec 12, 2015 Accepting new patients
Northbay Healthcare Group CurrentSince May 1, 2025 Accepting new patients
Sutter Valley Medical Foundation CurrentSince Dec 12, 2015 Accepting new patients
Northbay Healthcare Group Past Accepting new patients

Locations

416 Napa Junction Rd
#140
American Canyon, CA 94503

2470 Hilborn Rd
Ste 100
Fairfield, CA 94534
Phone (707) 646-4600

1200 B Gale Wilson Blvd
Fairfield, CA 94533
Phone (707) 429-3600

10470 Old Placerville Rd
Ste 100
Sacramento, CA 95827

1201 Alhambra Blvd
Ste 400
Sacramento, CA 95816
Phone (916) 733-5090

2800 L St
Ste 500
Sacramento, CA 95816
Phone (916) 454-6850

1679 E Monte Vista Ave
Ste 104
Vacaville, CA 95688
Phone (707) 624-7400

1010 Nut Tree Rd
Ste 100B
Vacaville, CA 95687
Phone (707) 646-7999

1000 Nut Tree Rd
Vacaville, CA 95687
Phone (707) 446-4000

101 Main St
Winters, CA 95694
Phone (530) 795-4123

Organizations & group practices 7

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

NPI Registry JSON

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

{
    "created_epoch": "1238112000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1574640000000",
    "number": "1235371915",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "414 G ST STE 221",
            "city": "MARYSVILLE",
            "state": "CA",
            "postal_code": "959015670"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "414 G ST STE 221",
            "city": "MARYSVILLE",
            "state": "CA",
            "postal_code": "959015670",
            "telephone_number": "916-733-5090"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOTAREK",
        "first_name": "STEPHEN",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-03-27",
        "last_updated": "2019-11-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "PA19292",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Marysville, CA

Sources for this page

Verify at the official NPI Registry.