Jimmitti Teysir, MD

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

324325 Issued in NY

Practice address

300 E 66TH St
New York, NY 10065-6800

Phone

(646) 888-4346

Fax

(617) 724-7441

NPI assigned

Mar 24, 2020

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

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

Medical OncologyAlso: Internal Medicine

Education

Icahn School of Medicine at Mount Sinai, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Memorial Solid Tumor GroupGroup PAC ID 4082503354, 233 clinicians

Mskcc Regional NetworkGroup PAC ID 6608765144, 130 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorial Hospital for Cancer and Allied Diseases Hospital, New York, NY, CCN 330154

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: jteysir96377@mskcc.direct-ci.com

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.

• Memorial Solid Tumor Group

  • Internal Medicine Physician
  • New York, NY
  • NPI 1699746172
  Medicare reassignment Care Compare group NPD
• Mskcc Regional Network

  dba MSKCC Suffolk @ Commack

  • Medical Oncology Physician
  • Commack, NY
  • NPI 1740251297
  Medicare reassignment Care Compare group NPD
• Memorial Developmental Chemo Group

  • Medical Oncology Physician
  • New York, NY
  • NPI 1912978487
  Medicare reassignment NPD
• Memorial Infectious Disease Group

  • Infectious Disease Physician
  • New York, NY
  • NPI 1619948189

  Medical Oncology

  Medicare reassignment NPD

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

• Memorial Hospital for Cancer and Allied Diseases

  • General Acute Care Hospital
  • New York, NY
  • NPI 1700887411
  Care Compare affiliation
• Ralph Lauren Center for Cancer Care and Prevention

  • Special Hospital
  • New York, NY
  • NPI 1770046351
  Care Compare affiliation
• Memorial Hospital for Cancer & Allied Diseases

  • General Acute Care Hospital
  • Basking Ridge, NJ
  • NPI 1659385474
  Care Compare affiliation
• Memorial Sloan Kettering Bergen

  • General Acute Care Hospital
  • Montvale, NJ
  • NPI 1841650330
  Care Compare affiliation
• Memorial Sloan Kettering Monmouth

  • General Acute Care Hospital
  • Middletown, NJ
  • NPI 1528428521
  Care Compare affiliation

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

{
    "created_epoch": "1585008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749081600000",
    "number": "1629605233",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT STREET",
            "address_2": "GRB-7-730",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02114",
            "telephone_number": "617-726-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 E 66TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656800",
            "telephone_number": "646-888-4346",
            "fax_number": "617-724-7441"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TEYSIR",
        "first_name": "JIMMITTI",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-24",
        "last_updated": "2025-06-05",
        "certification_date": "2025-06-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "NY",
            "license": "324325",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "324325",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tex Marie Gibson LCSW PLLC
• Texas Medical Care Specialist, PLLC
• Natalie Marie Textores
• Textures by GM, Inc.
• Rachel Teiko Ometse Teye
• Florentina Teyu, M.D.
• Tongalp H Tezel, MD
• Kate Anne Thacher, PSY.D.
• Rosy Thachil, M.D.
• Kelly Thacker, OT

• Medical Oncology Physician in New York, NY
• Providers in New York, NY by specialty
• Medical Oncology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 5, 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.