Joseph Onishchuk, DO

Primary specialty

Addiction Medicine (Family Medicine) PhysicianTaxonomy code 207QA0401X

License

25MB05832000 Issued in NJ

Practice address

208 White Horse Pike Ste 3
Barrington, NJ 08007-1322

Phone

(856) 617-6519

Fax

(856) 617-0179

NPI assigned

Nov 23, 2005

Last updated

Apr 30, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NJ

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 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

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.

• Liberty Anesthesia Associates, P. C.

  • Specialist
  • Coatesville, PA
  • NPI 1972509792
  NPD (past)
• Pinnacle Mid-Atlantic Anesthesia Associates PC

  • Anesthesiology Physician
  • Pottsville, PA
  • NPI 1073789244
  NPD (past)

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

{
    "created_epoch": "1132704000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1861475758",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "208 WHITE HORSE PIKE STE 3",
            "city": "BARRINGTON",
            "state": "NJ",
            "postal_code": "080071322",
            "telephone_number": "856-617-6519",
            "fax_number": "856-617-0179"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "208 WHITE HORSE PIKE STE 3",
            "city": "BARRINGTON",
            "state": "NJ",
            "postal_code": "080071322",
            "telephone_number": "856-617-6519",
            "fax_number": "856-617-0179"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ONISHCHUK",
        "first_name": "JOSEPH",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-23",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QA0401X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Addiction Medicine",
            "state": "NJ",
            "license": "25MB05832000",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David Nardi, M.D.
• Wendi Beth Novick, MSPT
• O'Leary Counseling, LLC
• O'Leary Counseling, LLC
• Lori O'Leary, MA, LPC, LCADC
• Jaclyn Papa, LCADC
• Maureen Pearce, CRNP
• Kathryn Persinger, OT
• Dana Kristine Phillips, LPC, NCC, SAC,MA
• Kristy Racz

• Addiction Medicine (Family Medicine) Physician in Barrington, NJ
• Providers in Barrington, NJ by specialty
• Addiction Medicine (Family Medicine) Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.