Arthur R Williams IV, M.D., M.A.

Primary specialty

Addiction Psychiatry PhysicianTaxonomy code 2084P0802X

License

262149 Issued in NY

Practice address

228 Park Ave S Ste 15314
New York, NY 10003-1502

Phone

(866) 306-2026

Fax

(833) 228-5591

NPI assigned

May 2, 2010

Last updated

Oct 20, 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 3

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, CA, NJ, PA, NY, DC, FL, MT, WA, AZ, VT, MD, ME, DE, CT, WV, VA17 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 17

Specialty

Psychiatry

Education

Other, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Ophelia Medical Group FL PAGroup PAC ID 7810398534, 103 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Arts, Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Ophelia Medical Group FL, P.a.

  • Addiction Medicine (Family Medicine) Physician
  • Philadelphia, PA
  • NPI 1588244750

  AZ, CT, DC, DE, FL, MD, ME, MT, NY, TX, VA, VT, WA, WV

  Medicare reassignment Care Compare group Authorized official
• Ophelia Medical Group Ca PC

  • Addiction Medicine (Psychiatry & Neurology) Physician
  • San Diego, CA
  • NPI 1760153381

  Multi-Specialty

  Medicare reassignment NPD Authorized official
• Ophelia Medical Group NJ PC

  • Psychiatry Physician
  • Flanders, NJ
  • NPI 1346906179

  Multi-Specialty

  Medicare reassignment NPD Authorized official
• Ophelia Medical Group, P.C.

  • Addiction Medicine (Psychiatry & Neurology) Physician
  • Philadelphia, PA
  • NPI 1376179150

  Multi-Specialty

  NPD Authorized official
• Ophelia Medical Group Ny, P.C.

  • Addiction Medicine (Psychiatry & Neurology) Physician
  • New York, NY
  • NPI 1013528363

  Multi-Specialty

  NPD (past) Authorized official

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

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            "address_1": "167 Main St Ste 401C",
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        {
            "address_1": "1644 Annapolis Rd Ste 4",
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            "city": "Odenton",
            "state": "MD",
            "postal_code": "211131002",
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            "address_1": "1449 Old Waterbury Rd Ste 205, Office B",
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        {
            "address_1": "Autry Plaza Suite 205-O 1330 San Pedro Dr NE",
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            "address_1": "464 Herndon Pkwy Ste 216",
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            "address_1": "161 Cecil B Moore Ave Ste 204",
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        {
            "address_1": "230 US Highway 206 Bldg 3 Ste 4",
            "address_purpose": "LOCATION",
            "city": "Flanders",
            "state": "NJ",
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        {
            "address_1": "5800 Ranchester Dr Ste 125",
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            "city": "Houston",
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        "first_name": "ARTHUR",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "name_suffix": "IV",
        "credential": "M.D.,  M.A.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-05-02",
        "last_updated": "2025-10-20",
        "certification_date": "2025-10-20",
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    },
    "taxonomies": [
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            "state": "DE",
            "license": "C1-0024636",
            "primary": false
        },
        {
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            "license": "262149",
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        },
        {
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            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychiatry & Neurology, Addiction Psychiatry",
            "state": "PA",
            "license": "MD472288",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Annetasha Nichole Williams
• Annie King Williams, CRNP
• Ariel Williams, LMSW
• Armistead D Williams III, M.D.
• Arthur Williams, MD
• Ashley Williams
• Ayesha Audene Williams, NP
• Ayhanna N Williams
• Ayrelynn Regjorne Williams
• Brandon Williams

• Addiction Psychiatry Physician in New York, NY
• Providers in New York, NY by specialty
• Addiction Psychiatry Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 20, 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.