William Stephen Anderson, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA01652 Issued in RI

Practice address

736 Cambridge St
Brighton, MA 02135-2907

Phone

(617) 779-6500

Fax

(617) 779-6785

NPI assigned

Apr 14, 2011

Last updated

Feb 17, 2026By 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 MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup PAC ID 4486567104, 1,693 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086
• Beth Israel Deaconess Hospital - Needham Hospital, Needham, MA, CCN 220083
• Sturdy Memorial Hospital Hospital, Attleboro, MA, CCN 220008

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wanderson74800@direct.phhs.org
• Direct secure messaging: william.anderson.1@2017.direct.athenahealth.com

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.

• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  Medicare reassignment Care Compare group NPD
• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  Medicare reassignment NPD
• BMC Affiliated Physicians, Inc.

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1245320910
  Medicare reassignment NPD
• Dana-Farber Cancer Institute, Inc.

  dba Binney Medical Associates

  • Special Hospital
  • Boston, MA
  • NPI 1346433257
  Medicare reassignment NPD
• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573
  Medicare reassignment NPD
• Sturdy Memorial Hospital Inc

  • General Acute Care Hospital
  • Attleboro, MA
  • NPI 1730106162
  Medicare reassignment NPD
• Pratt Urology Associates, Inc

  dba Pratt Associates

  • Urology Physician
  • Boston, MA
  • NPI 1497795025
  Medicare reassignment
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment
• Beth Israel Deaconess Medical Center, Inc.

  • Ambulance
  • Boston, MA
  • NPI 1518600501
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Emergency Medicine - HMFP at BIDMC

  • Emergency Medicine Physician
  • Boston, MA
  • NPI 1316987993
  NPD

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

• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  Care Compare affiliation
• Sturdy Memorial Hospital Inc

  • General Acute Care Hospital
  • Attleboro, MA
  • NPI 1730106162
  Care Compare affiliation

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

{
    "created_epoch": "1302739200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771286400000",
    "number": "1154611838",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 ONEIL BLVD",
            "city": "ATTLEBORO",
            "state": "MA",
            "postal_code": "027034250",
            "telephone_number": "508-342-1103",
            "fax_number": "508-342-1945"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "736 CAMBRIDGE ST",
            "city": "BRIGHTON",
            "state": "MA",
            "postal_code": "021352907",
            "telephone_number": "617-779-6500",
            "fax_number": "617-779-6785"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "593 Eddy Street",
            "address_2": "APC 4",
            "address_purpose": "LOCATION",
            "city": "Providence",
            "state": "RI",
            "postal_code": "02903",
            "country_code": "US",
            "telephone_number": "401-444-4700",
            "fax_number": "401-444-6681",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "100 ONeil Blvd",
            "address_purpose": "LOCATION",
            "city": "Attleboro",
            "state": "MA",
            "postal_code": "027034250",
            "country_code": "US",
            "telephone_number": "508-342-1103",
            "fax_number": "508-342-1945",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ANDERSON",
        "first_name": "WILLIAM",
        "middle_name": "STEPHEN",
        "name_prefix": "Dr.",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-04-14",
        "last_updated": "2026-02-17",
        "certification_date": "2026-02-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "RI",
            "license": "PA01652",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anam Solas Therapy LLC
• Jennifer Lyn Anders, LIC. AC.
• Cathy Lee Anderson, FNP-BC
• Kelly Elizabeth Anderson, PT, DPT
• Mary F Anderson, DO
• Catia Andrade
• Anna M. Ang, PA-C
• Rutchele Angelot, LICSW
• Maria Ansari, M.D.
• Robert Antonelli

• Physician Assistant in Brighton, MA
• Providers in Brighton, MA by specialty
• Physician Assistant in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 17, 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.