NPIMap

Individual provider Active NPI

Jonathan E Shirman, DO

  • Addiction Medicine (Family Medicine) Physician
  • Oxnard, CA
National Provider Identifier
1326606898
Registry record updated Oct 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction Medicine (Family Medicine) PhysicianTaxonomy code 207QA0401X
License
20A22896 Issued in CA
Practice address
3641 W 5TH St
Oxnard, CA 93030-6424
Phone
(805) 985-5505
NPI assigned
May 30, 2019
Last updated
Oct 30, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 30, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Physician 208D00000X 318974 NY
Student in an Organized Health Care Education/Training Program 390200000X NY
Student in an Organized Health Care Education/Training Program 390200000X
Addiction Medicine (Family Medicine) Physician 207QA0401X 20A22896 CA Primary

Addresses

Primary practice location

3641 W 5TH St
Oxnard, CA 93030-6424

Mailing address

4457 Paxton PL
Calabasas, CA 91302-3844
Phone (818) 322-5081

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in FL, CA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20240626000185 FL Practitioner - General Practice 3971046996
I20240717003848 CA Practitioner - Addiction Medicine 3971046996 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Addiction Medicine
Education
Lake Erie College of Osteopathic Medicine, Bradenton, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Community Memorial Health SystemGroup PAC ID 9537155676, 187 clinicians

Practice addresses (Care Compare)

3641 W 5TH St
Oxnard, CA 93030-6424
Phone (805) 985-5505

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
20A22896CAMDAddiction Medicine (Family Medicine) Physician
22896CAMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Community Memorial Health System CurrentSince Aug 1, 2024 Accepting new patients
Community Memorial Health System Current Accepting new patients
Community Memorial Health System CurrentSince Aug 1, 2024 Accepting new patients

Locations

422 Arneill Rd
Ste B
Camarillo, CA 93010
Phone (805) 383-4510

2921 Saviers Rd
Oxnard, CA 93033
Phone (805) 487-5588

3641 W 5th St
Oxnard, CA 93030
Phone (805) 985-5505

138 W Main St
Ste E
Ventura, CA 93001
Phone (805) 667-2850

147 N Brent St
Ventura, CA 93003
Phone (805) 652-5011

5855 Olivas Park Dr
Ventura, CA 93003
Phone (805) 652-5469

Interoperability endpoints

  • Direct secure messaging: jshirman3514636@oc.providencedirect.org

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 10

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": "1559174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761782400000",
    "number": "1326606898",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4457 PAXTON PL",
            "city": "CALABASAS",
            "state": "CA",
            "postal_code": "913023844",
            "telephone_number": "818-322-5081"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3641 W 5TH ST",
            "city": "OXNARD",
            "state": "CA",
            "postal_code": "930306424",
            "telephone_number": "805-985-5505"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SHIRMAN",
        "first_name": "JONATHAN",
        "middle_name": "E",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-30",
        "last_updated": "2025-10-30",
        "certification_date": "2025-10-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "NY",
            "license": "318974",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NY",
            "license": null,
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207QA0401X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Addiction Medicine",
            "state": "CA",
            "license": "20A22896",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Oxnard, CA

Sources for this page

Verify at the official NPI Registry.