Maxwell Ethan Horowitz, DO

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

OS22188 Issued in FL

Practice address

1515 N Flagler Dr Ste 430
West Palm Beach, FL 33401-3430

Phone

(561) 659-6336

Fax

(561) 659-9353

NPI assigned

Apr 6, 2020

Last updated

Aug 25, 2025By the provider in NPPES

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

Medicare fee-for-service enrollment

Enrolled in FL

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

Endocrinology

Education

Touro Un Col of Osteopathic Medicine, New York, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Palm Beach Diabetes and Endocrine Specialists PAGroup PAC ID 5698736601, 20 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/FBGIAA

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.

• Palm Beach Diabetes and Endocrine Specialists PA

  • Endocrinology, Diabetes & Metabolism Physician
  • West Palm Beach, FL
  • NPI 1215941182
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1586131200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756080000000",
    "number": "1922637420",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1515 N FLAGLER DR STE 430",
            "city": "WEST PALM BEACH",
            "state": "FL",
            "postal_code": "334013430",
            "telephone_number": "561-659-6336",
            "fax_number": "561-659-9353"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1515 N FLAGLER DR STE 430",
            "city": "WEST PALM BEACH",
            "state": "FL",
            "postal_code": "334013430",
            "telephone_number": "561-659-6336",
            "fax_number": "561-659-9353"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOROWITZ",
        "first_name": "MAXWELL",
        "middle_name": "ETHAN",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-04-06",
        "last_updated": "2025-08-25",
        "certification_date": "2025-08-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "FL",
            "license": "OS22188",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jonathan N Horner, MSED
• Eve Hornstein, LMFT
• Barry Horowitz, M.D.
• Edward G Horowitz, D.C
• Kenneth Lee Horowitz, D.C.
• Steven Mitchell Horowitz, D.C.
• Yarleny Horta Naranjo
• Gustavo Giorgio Horta
• Hospice of Palm Beach County, Inc. (TrustBridge Pharmacy)
• Hospice of Palm Beach County, Inc.

• Endocrinology, Diabetes & Metabolism Physician in West Palm Beach, FL
• Providers in West Palm Beach, FL by specialty
• Endocrinology, Diabetes & Metabolism Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 25, 2025; 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.