Individual provider Active NPI

Todd Ramsey Wojtanowicz, MD

  • Psychiatry Physician
  • Billings, MT
National Provider Identifier
1922491596
Registry record updated Oct 14, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
A158817 Issued in CA
Practice address
2800 10TH Ave N
Billings, MT 59101-0703
Phone
(406) 238-2500
NPI assigned
Mar 6, 2015
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 14, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X A158817 CA Primary
Psychiatry PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 2084P0800X 98487 MT

Addresses

Primary practice location

2800 10TH Ave N
Billings, MT 59101-0703

Mailing address

PO Box 35100
Billings, MT 59107-5100
Phone (406) 238-2500

Other practice location 1

200 Hillmont Ave
Ventura, CA 93003-1647
Phone (805) 652-6729

Other practice location 2

300 Hillmont Ave
Ventura, CA 93003-1651
Phone (805) 652-6000

Other practice location 3

265 S Anita Dr Ste 102-104
Orange, CA 92868-3355
Phone (714) 410-3500

Other practice location 4

4411 E Kings Canyon Rd
Fresno, CA 93702-3604
Phone (559) 538-1727

Other practice location 5

301 Victoria St
Costa Mesa, CA 92627-1995
Phone (949) 642-2734

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address todd.wojtanowicz@ventura.cernerdirect.com Direct
Direct Messaging Address twojtanowicz@billingsclinic.cernerdirect.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT, CA, PA3 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20210520001857 MT Practitioner - Psychiatry 3779816517 Reassigns benefits to 1 organization
I20230602002495 CA Practitioner - Psychiatry 3779816517 Reassigns benefits to 6 organizations
I20240926002199 PA Practitioner - Psychiatry 3779816517 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A158817CAMDPsychiatry Physician
98487MTMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Billings Clinic Single Specialty CurrentSince Jul 1, 2021 Accepting new patients
Geisinger Clinic Single Specialty Current Accepting new patients
Alameda Health System Single Specialty CurrentSince Sep 30, 2024 Accepting new patients
County of Butte Single Specialty Current Accepting new patients
Billings Clinic Current Accepting new patients
County of Butte CurrentSince Sep 1, 2024 Accepting new patients
County of Ventura CurrentSince Oct 3, 2024 Accepting new patients
County of Santa Clara Single Specialty Current Accepting new patients
County of Ventura Single Specialty CurrentSince Oct 3, 2024 Accepting new patients
County of Humboldt CurrentSince Jan 6, 2025 Accepting new patients
Geisinger Clinic Single Specialty CurrentSince Sep 16, 2024 Accepting new patients
Alameda Health System Single Specialty CurrentSince Sep 30, 2024 Accepting new patients
Billings Clinic CurrentSince Jul 1, 2021 Accepting new patients
County of Humboldt Single Specialty CurrentSince Jan 6, 2025 Accepting new patients
County of Santa Clara CurrentSince Aug 1, 2025 Accepting new patients
County of Humboldt Single Specialty Current Accepting new patients
Alliance for Wellness, Inc. Single Specialty CurrentSince Feb 8, 2023 Accepting new patients
County of Santa Clara CurrentSince Aug 1, 2025 Accepting new patients
Geisinger Clinic CurrentSince Sep 16, 2024 Accepting new patients
County of Butte CurrentSince Sep 1, 2024 Accepting new patients
Billings Clinic Single Specialty Current Accepting new patients
Tamika Henry MD Inc Single Specialty PastSince Jan 7, 2025 Accepting new patients
Exodus Recovery, Inc. PastSince Nov 22, 2020 Accepting new patients

Locations

2060 Fairmont Dr
Castro Valley, CA 94578
Phone (510) 346-1300

3217 Cohasset Rd
Cohasset, CA 95973
Phone (530) 552-4578

16260 Ventura Blvd
Ste 630
Encino, CA 91436
Phone (747) 264-9201

720 Wood St
Rm 309
Eureka, CA 95501

2355 23rd St
Eureka, CA 95501
Phone (747) 998-0387

720 Wood St
Eureka, CA 95501
Phone (707) 268-2900

7475 Camino Arroyo
Gilroy, CA 95020
Phone (408) 852-2400

995 Spruce St
Gridley, CA 95948
Phone (530) 846-7305

1411 E 31st St
Oakland, CA 94602
Phone (510) 437-4323

101 The City Dr S
Bldg 3
Orange, CA 92868
Phone (714) 456-5770

82 Table Mountain Blvd
Oroville, CA 95965
Phone (530) 538-7705

751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110

500 Tully Rd
San Jose, CA 95111
Phone (408) 817-1433

1993 McKee Rd
San Jose, CA 95116
Phone (408) 254-6320

750 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-2320

660 S Fair Oaks Ave
Sunnyvale, CA 94086
Phone (408) 885-7366

14850 Roscoe Blvd
Van Nuys, CA 91402
Phone (818) 787-2222

800 S Victoria Ave
#L4640
Ventura, CA 93009

200 Hillmont Ave
Ventura, CA 93003
Phone (805) 652-5755

300 Hillmont Ave
Ventura, CA 93003
Phone (805) 652-6000

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

2950 10th Ave N
Billings, MT 59101
Phone (406) 657-3901

100 N Academy Ave
Danville, PA 17822

Interoperability endpoints

  • Direct secure messaging: twojtanowicz@billingsclinic.cernerdirect.com
  • Direct secure messaging: twojtanowicz617910@hisp.ehr.sutterhealth.org
  • Direct secure messaging: twojtanowicz441448@direct.memorialcare.org
  • Direct secure messaging: twojtanowicz239632@santaclaravalley.direct-ci.net

Organizations & group practices 23

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.

View all 23

NPI Registry JSON

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

{
    "created_epoch": "1425600000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760400000000",
    "number": "1922491596",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35100",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591075100",
            "telephone_number": "406-238-2500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2800 10TH AVE N",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591010703",
            "telephone_number": "406-238-2500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 Hillmont Ave",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930031647",
            "country_code": "US",
            "telephone_number": "805-652-6729",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "300 Hillmont Ave",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930031651",
            "country_code": "US",
            "telephone_number": "805-652-6000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "265 S Anita Dr Ste 102-104",
            "address_purpose": "LOCATION",
            "city": "Orange",
            "state": "CA",
            "postal_code": "928683355",
            "country_code": "US",
            "telephone_number": "714-410-3500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4411 E Kings Canyon Rd",
            "address_purpose": "LOCATION",
            "city": "Fresno",
            "state": "CA",
            "postal_code": "937023604",
            "country_code": "US",
            "telephone_number": "559-538-1727",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "301 Victoria St",
            "address_purpose": "LOCATION",
            "city": "Costa Mesa",
            "state": "CA",
            "postal_code": "926271995",
            "country_code": "US",
            "telephone_number": "949-642-2734",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WOJTANOWICZ",
        "first_name": "TODD",
        "middle_name": "RAMSEY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-03-06",
        "last_updated": "2025-10-14",
        "certification_date": "2025-10-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A158817",
            "primary": true
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MT",
            "license": "98487",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "todd.wojtanowicz@ventura.cernerdirect.com",
            "affiliation": "N",
            "endpointDescription": "Cerner Direct Secure Email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Direct Information",
            "address_1": "200 Hillmont Ave",
            "city": "Ventura",
            "state": "CA",
            "country_code": "US",
            "postal_code": "930031647",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "twojtanowicz@billingsclinic.cernerdirect.com",
            "affiliation": "N",
            "endpointDescription": "direct email address",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2800 10th Ave N",
            "city": "Billings",
            "state": "MT",
            "country_code": "US",
            "postal_code": "591010703",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Billings, MT

Sources for this page

Verify at the official NPI Registry.