Kathryn Leigh Mazza, D.O.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

079272 Issued in CT

Practice address

1591 Boston Post Rd Ste 100
Guilford, CT 06437-4335

Phone

(203) 453-9911

Fax

(203) 458-1905

NPI assigned

Jul 8, 2013

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

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

Family Practice

Education

Nova Southeastern College of Osteo Medicine, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Bronxcare Health SystemGroup PAC ID 3870404429, 335 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bronxcare Hospital Center Hospital, Bronx, NY, CCN 330009

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722

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.

• Bronxcare Health System

  • Internal Medicine Physician
  • Bronx, NY
  • NPI 1245390855

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Sun River Health Inc

  • Federally Qualified Health Center (FQHC)
  • Amenia, NY
  • NPI 1568526838

  Single Specialty

  Medicare reassignment NPD
• Westchester Medical Center Advanced Physician Services, PC

  • Surgery Physician
  • Valhalla, NY
  • NPI 1912131392

  Single Specialty

  Medicare reassignment NPD
• Bronxcare Health System

  • Methadone Clinic
  • Bronx, NY
  • NPI 1801428222
  NPD
• Sun River Health Inc.

  • Federally Qualified Health Center (FQHC)
  • Peekskill, NY
  • NPI 1619969458

  Single Specialty

  NPD
• Westchester Medical Center Advanced Physician Services PC

  • Anesthesiology Physician
  • Valhalla, NY
  • NPI 1740687458

  Single Specialty

  NPD

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

• Bronxcare Health System

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1417027558
  Care Compare affiliation

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

{
    "created_epoch": "1373241600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755561600000",
    "number": "1497196471",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 WATER ST",
            "address_2": "FL 12",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100410004",
            "telephone_number": "646-680-2888"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1591 BOSTON POST RD STE 100",
            "city": "GUILFORD",
            "state": "CT",
            "postal_code": "064374335",
            "telephone_number": "203-453-9911",
            "fax_number": "203-458-1905"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1067 Ogden Ave",
            "address_purpose": "LOCATION",
            "city": "Bronx",
            "state": "NY",
            "postal_code": "104524601",
            "country_code": "US",
            "telephone_number": "718-992-7669",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAZZA",
        "first_name": "KATHRYN",
        "middle_name": "LEIGH",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2013-07-08",
        "last_updated": "2025-08-19",
        "certification_date": "2025-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "289426",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "079272",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Karen Marcovici, PH.D.
• Lynne Martocci, PT
• Anthony Mascia, MD
• Luigi Masella, DDS
• May Bloomer Hoyt, LLC
• Cassidy J McCarns, NP
• Thomas R McCauley, M.D.
• Blair McCracken, PH.D.
• Jill McEachern, APRN
• Janelle Diane McElhany, RPT

• Internal Medicine Physician in Guilford, CT
• Providers in Guilford, CT by specialty
• Internal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 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.