Gregory V Defazio, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

198761 Issued in NY

Practice address

1301 82ND Street
Brooklyn, NY 11228

Phone

(718) 836-3721

Fax

(718) 259-6567

NPI assigned

Feb 7, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Obstetrics/Gynecology

Education

State University of New York Downstate Medical Center, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

De Fazio Obstetrics and Gynecology PCGroup PAC ID 6608001763, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Staten Island University Hospital Hospital, Staten Island, NY, CCN 330160

Merit-based Incentive Payment System (MIPS)

Final score

94.47 of 100Reported as group

Quality

84.67

Promoting interoperability

100

Improvement activities

40

Cost

71.47

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H3359

Interoperability endpoints

• Direct secure messaging: gvd9001@direct.nyp.org

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.

• De Fazio Obstetrics & Gynecology, PC

  • Obstetrics & Gynecology Physician
  • Brooklyn, NY
  • NPI 1447594916
  Medicare reassignment Care Compare group NPD
• Kings Physician Services, PC

  • Diagnostic Radiology Physician
  • Brooklyn, NY
  • NPI 1083045090
  Medicare reassignment NPD
• Kings Physician Services, PC

  dba Kings Emergency Physician Services

  • Emergency Medicine Physician
  • Brooklyn, NY
  • NPI 1326698879
  NPD

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

• Staten Island University Hospital

  • General Acute Care Hospital
  • Staten Island, NY
  • NPI 1407877137
  Care Compare affiliation

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

{
    "created_epoch": "1139270400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1164495628",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1301 82ND STREET",
            "address_2": "BOX 26",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11228",
            "telephone_number": "718-836-3721",
            "fax_number": "718-259-6567"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1301 82ND STREET",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11228",
            "telephone_number": "718-836-3721",
            "fax_number": "718-259-6567"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEFAZIO",
        "first_name": "GREGORY",
        "middle_name": "V",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-07",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NY",
            "license": "198761",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01606046",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Deeply Rooted Therapeutic Services LCSW PLLC
• Clover Deer
• Orlette Deer
• Shanice Deer, LPN
• Daniel Peter Defalco III
• Mark L Defazio, MD
• Nicholas Defazio, LCSW
• Vita Defede
• Everett James Defieux, L.AC, LMT
• Brigette Ann Defilippis, MSN, FNP-BC

• Obstetrics & Gynecology Physician in Brooklyn, NY
• Providers in Brooklyn, NY by specialty
• Obstetrics & Gynecology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.