Geraldine C. Diaz, D.O.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

225683 Issued in NY

Practice address

601 Suffolk Ave
Brentwood, NY 11717-4309

Phone

(631) 231-4455

NPI assigned

Nov 13, 2006

Sex

Female

Sole proprietor

No

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.

• North American Partners in Anesthesia LLP

  • Anesthesiology Physician
  • Melville, NY
  • NPI 1649264706

  Anesthesiology, NY

  Medicare reassignment Care Compare group NPD
• Sedation Vacation Perioperative Medicine PLLC

  • Specialist
  • Valley Stream, NY
  • NPI 1891235404

  NY

  Medicare reassignment Care Compare group NPD
• R&N Anesthesia PLLC

  • Anesthesiology Physician
  • New York, NY
  • NPI 1447657275

  NY

  Medicare reassignment Care Compare group
• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Anesthesiology, NY

  Medicare reassignment NPD
• New York Cardiovascular Anesthesiologists, P.C.

  • Anesthesiology Physician
  • Roslyn, NY
  • NPI 1801834411

  Anesthesiology, NY

  Medicare reassignment NPD
• Montefiore Medical Center

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Trustees of Columbia University in the City of New York

  • Anesthesiology Physician
  • New York, NY
  • NPI 1841239829

  Anesthesiology

  NPD (past)

Specialty

Anesthesiology

Education

Philadelphia College of Osteopathic Medicine, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Randn Anesthesia PLLC 32 clinicians

Sedation Vacation Perioperative Medicine PLLC 86 clinicians

North American Partners in Anesthesia LLP 427 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

15 of 100Reported as individual

Quality

0

Improvement activities

40

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.

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. Confirm with the OIG exclusions search.

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations

The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Jan 30, 2026.

{
    "created_epoch": "1163376000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1003987967",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "450 CLARKSON AVE STE 6",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112032012",
            "telephone_number": "718-270-2331"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 SUFFOLK AVE",
            "city": "BRENTWOOD",
            "state": "NY",
            "postal_code": "117174309",
            "telephone_number": "631-231-4455"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "450 Clarkson Ave Ste 6",
            "address_purpose": "LOCATION",
            "city": "Brooklyn",
            "state": "NY",
            "postal_code": "11203",
            "country_code": "US",
            "telephone_number": "718-270-2331",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1740 W Taylor St Ste 3200W",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606127232",
            "country_code": "US",
            "telephone_number": "312-996-4020",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5841 S Maryland Ave",
            "address_2": "MC 4028",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606371447",
            "country_code": "US",
            "telephone_number": "773-926-1220",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1500 William Floyd Pkwy",
            "address_purpose": "LOCATION",
            "city": "Shirley",
            "state": "NY",
            "postal_code": "119671800",
            "country_code": "US",
            "telephone_number": "631-205-9090",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5841 S Maryland Ave",
            "address_2": "MC 4028",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606371447",
            "country_code": "US",
            "telephone_number": "773-926-1220",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "GERALDINE",
        "middle_name": "C.",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-13",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IL",
            "license": "036126434",
            "primary": false
        },
        {
            "code": "207LC0200X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Critical Care Medicine",
            "state": "IL",
            "license": "036126434",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "225683",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "Z120519",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Rovena L Desmarattes, CNM
• Patricia Devery
• Janet Devine
• Edwin Dhall
• Michelle Di Guglielmo, MD
• Kyle Christopher Diaz
• Mary Ann Dickinson
• Robert Lawrence Dictrow, DDS
• Lourna Vanessa Dieujuste
• Marie Alourdes Dieujuste

• All providers in Brentwood, NY
• Anesthesiology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 30, 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.