Walter John Borowski, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

25MA04361900 Issued in NJ

Practice address

45 Pearl St
Metuchen, NJ 08840-1832

Phone

(732) 590-6115

Fax

(732) 590-6116

NPI assigned

Oct 2, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Specialty

Internal Medicine

Education

Other, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Practice Associates Medical GroupGroup PAC ID 5890703177, 1,412 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Morristown Medical Center Hospital, Morristown, NJ, CCN 310015
• Robert Wood Johnson University Hospital at Rahway Hospital, Rahway, NJ, CCN 310024

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wborowski523230@direct.ahsys.org

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.

• Practice Associates Medical Group

  dba Atlantic Medical Group

  • Internal Medicine Physician
  • Morristown, NJ
  • NPI 1427016385
  Medicare reassignment Care Compare group NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Ahs Hospital Corp.

  dba Morristown Medical Center

  • General Acute Care Hospital
  • Morristown, NJ
  • NPI 1053384776
  Care Compare affiliation
• Robert Wood Johnson University Hospital at Rahway

  • General Acute Care Hospital
  • Rahway, NJ
  • NPI 1861486870
  Care Compare affiliation

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

{
    "created_epoch": "1159747200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1912090168",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "465 SOUTH ST STE 103",
            "city": "MORRISTOWN",
            "state": "NJ",
            "postal_code": "079606442",
            "telephone_number": "732-590-6115",
            "fax_number": "732-590-6116"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "45 PEARL ST",
            "city": "METUCHEN",
            "state": "NJ",
            "postal_code": "088401832",
            "telephone_number": "732-590-6115",
            "fax_number": "732-590-6116"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BOROWSKI",
        "first_name": "WALTER",
        "middle_name": "JOHN",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-10-02",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NJ",
            "license": "25MA04361900",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2011409",
            "state": "NJ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Rhapsody Blake
• James Alhannan Blissett, RRT
• Laura Bogash, LPC
• Bon Accord Counseling Services
• Steven Glenn Bonstein, P.T.
• Stephanie Boston, LMT/CMMP
• Boyt Pharmaceutical Services,LLC. (Boyt Drugs)
• Boyts Pharmaceutical Services,LLC. (boyt drugs ltc)
• Dionne Kristy Bradley
• Jessica Breen, LCSW

• Internal Medicine Physician in Metuchen, NJ
• Providers in Metuchen, NJ by specialty
• Internal Medicine Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.