William Zachary Fenn, D.P.M.

Primary specialty

Foot & Ankle Surgery PodiatristTaxonomy code 213ES0103X

License

2336 Issued in MA

Practice address

24 Newton St
Southborough, MA 01772-1215

Phone

(508) 486-4472

Fax

(508) 460-3281

NPI assigned

Apr 8, 2008

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MA, VA2 enrollments

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 2

Specialty

Podiatry

Education

Temple University School of Medicine, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Reliant Medical Group IncGroup PAC ID 5597755322, 638 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Vincent Hospital Hospital, Worcester, MA, CCN 220176
• Metrowest Medical Center Hospital, Framingham, MA, CCN 220175

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: william.fenn.npi1184897415.reliant@direct.optumcare.masshiway.net

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Reliant Medical Group, Inc

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1720017528
  Medicare reassignment Care Compare group NPD
• Bayview Physician Services, PC

  • Family Medicine Physician
  • Chesapeake, VA
  • NPI 1508813387

  Podiatrist

  Medicare reassignment NPD
• Bayview Physician Services, PC

  • Radiology Clinic/Center
  • Suffolk, VA
  • NPI 1699865626
  NPD
• Bayview Medical Center, Inc

  • Ambulatory Surgical Clinic/Center
  • Suffolk, VA
  • NPI 1568466209
  NPD (past)

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

• VHS Acquisition Subsidiary Number 7 Inc

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1538131214
  Care Compare affiliation
• VHS Acquisition Subsidiary Number 9 Inc

  • General Acute Care Hospital
  • Framingham, MA
  • NPI 1740252592
  Care Compare affiliation

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

{
    "created_epoch": "1207612800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1743120000000",
    "number": "1184897415",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24 NEWTON ST",
            "city": "SOUTHBOROUGH",
            "state": "MA",
            "postal_code": "017721215",
            "telephone_number": "508-486-4472",
            "fax_number": "508-460-3281"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24 NEWTON ST",
            "city": "SOUTHBOROUGH",
            "state": "MA",
            "postal_code": "017721215",
            "telephone_number": "508-486-4472",
            "fax_number": "508-460-3281"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FENN",
        "first_name": "WILLIAM",
        "middle_name": "ZACHARY",
        "name_prefix": "Dr.",
        "credential": "D.P.M.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-04-08",
        "last_updated": "2025-03-28",
        "certification_date": "2025-03-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "213E00000X",
            "taxonomy_group": "",
            "desc": "Podiatrist",
            "state": "VA",
            "license": "0103301006",
            "primary": false
        },
        {
            "code": "213ES0103X",
            "taxonomy_group": "",
            "desc": "Podiatrist, Foot & Ankle Surgery",
            "state": "MA",
            "license": "2336",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110153403A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Epiphany Wellness Massachusetts LLC
• Ibari Ezekwe
• Brendan Falk
• Jeffrey James Farrell, ATC
• Stacey Panagotopulos Federico, PHD,RD
• Sean Ernest Ferris
• Fitzgerald Foot Care PLLC
• Mario F Flores, MD
• Maura K Foley
• Jennifer Foran, MSED

• Foot & Ankle Surgery Podiatrist in Southborough, MA
• Providers in Southborough, MA by specialty
• Foot & Ankle Surgery Podiatrist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 28, 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.