Caitlin Gribbin

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

310625 Issued in NY

Practice address

Weill Cornell Internal Medicine Associates
505 East 70TH Street
New York, NY 10021

Phone

(212) 746-9663

Fax

(212) 746-3609

NPI assigned

Mar 26, 2019

Last updated

Sep 29, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

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: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hematopoietic Cell Transplantation and Cellular Therapy

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Weill Medical College of CornellGroup PAC ID 6800709023, 2,023 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• New York-Presbyterian Hospital Hospital, New York, NY, CCN 330101

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

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.

• Weill Medical College of Cornell

  dba CUMC Bone Marrow Transplant

  • Hematology & Oncology Physician
  • New York, NY
  • NPI 1437273968
  Medicare reassignment Care Compare group NPD
• Weill Medical College of Cornell

  • Cardiovascular Disease Physician
  • New York, NY
  • NPI 1144729385
  NPD

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

• The New York and Presbyterian Hospital

  dba New York Presbyterian Hospital

  • General Acute Care Hospital
  • New York, NY
  • NPI 1144504044
  Care Compare affiliation
• The New York and Presbyterian Hospital

  dba New York-Presbyterian Hospital

  • Ambulance
  • New York, NY
  • NPI 1174628473

  Hospital

  Care Compare affiliation
• The New York and Presbyterian Hospital

  dba NewYork-Presbyterian Hospital

  • General Acute Care Hospital
  • New York, NY
  • NPI 1194832477
  Care Compare affiliation
• The New York and Presbyterian Hospital

  • General Acute Care Hospital
  • Bronxville, NY
  • NPI 1780196345
  Care Compare affiliation
• The New York and Presbyterian Hospital

  dba New York-Presbyterian Hospital

  • General Acute Care Hospital
  • New York, NY
  • NPI 1952332801
  Care Compare affiliation

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

{
    "created_epoch": "1553558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1023579869",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "WEILL CORNELL INTERNAL MEDICINE ASSOCIATES",
            "address_2": "505 EAST 70TH STREET",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10021",
            "telephone_number": "212-746-9663",
            "fax_number": "212-746-3609"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "WEILL CORNELL INTERNAL MEDICINE ASSOCIATES",
            "address_2": "505 EAST 70TH STREET",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10021",
            "telephone_number": "212-746-9663",
            "fax_number": "212-746-3609"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRIBBIN",
        "first_name": "CAITLIN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2019-03-26",
        "last_updated": "2026-09-29",
        "certification_date": "2026-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "NY",
            "license": "310625",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lukas Maverick Greyson
• Ruby Greywoode, MD
• Cynthia Lee Grguric, LMHC
• Janet Grgurovic
• Jeanie Gribben, MD
• John Philip Gribbin Jr., MD
• Carin Hanna Gribetz, M.D.
• Irwin Gribetz, M.D.
• Kate Gribetz, PA-C
• Michael Elliot Gribetz, MD

• Hematology & Oncology Physician in New York, NY
• Providers in New York, NY by specialty
• Hematology & Oncology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 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.