Individual provider Active NPI

Faiza Yasin, M.D.

  • Medical Oncology Physician
  • Boston, MA
National Provider Identifier
1649627704
Registry record updated Dec 23, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
1023176 Issued in MA
Practice address
450 Brookline Ave
Boston, MA 02215-5450
Phone
(617) 632-3000
NPI assigned
May 18, 2016
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 23, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RX0202X 1023176 MA Primary
Internal Medicine Physician 207R00000X A168706 CA
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

450 Brookline Ave
Boston, MA 02215-5450

Mailing address

450 Brookline Ave
Boston, MA 02215-5450
Phone (617) 632-3000

Other practice location 1

501 2nd St Ste 415
San Francisco, CA 94107-4132
Phone (415) 529-4567

Other practice location 2

840 Irving St
San Francisco, CA 94122-2311
Phone (415) 590-6140

Other practice location 3

20 York St
New Haven, CT 06510-3220
Phone (203) 688-4242

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT, MA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20190729001700 CT Practitioner - Internal Medicine 9032403803 Reassigns benefits to 2 organizations
I20250515000842 MA Practitioner - Medical OncologyPractitioner - Hematology 9032403803 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Hematology
Education
Boston University School of Medicine, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Dana-Farber Cancer Institute, Inc.Group PAC ID 9133038904, shared by 5 NPIs, 671 clinicians

Practice addresses (Care Compare)

450 Brookline Ave
Boston, MA 02215-5418

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A168706CAMDInternal Medicine Physician
1023176MAMDMedical Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Dana-Farber Cancer Institute, Inc. Multi-Specialty CurrentSince Jul 1, 2025 Accepting new patients
Yale University CurrentSince Jul 9, 2019 Accepting new patients
Mill Hill Medical Consultants Inc Multi-Specialty CurrentSince Jan 19, 2020 Accepting new patients
Dana-Farber Cancer Institute, Inc. Multi-Specialty CurrentSince Jul 1, 2025 Accepting new patients
Northeast Medical Group, Inc. Multi-Specialty CurrentSince Jan 19, 2020 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jul 1, 2025 Accepting new patients
Yale University Multi-Specialty CurrentSince Jul 9, 2019 Accepting new patients

Locations

300 George St
Fl 6
New Haven, CT 06511
Phone (203) 785-6610

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

20 York St
Unit CB2041
New Haven, CT 06510
Phone (203) 688-4741

15 York St
New Haven, CT 06510
Phone (203) 688-5303

20 York St
North Haven, CT 06510
Phone (203) 688-2433

95 Armory Rd
Stratford, CT 06614
Phone (203) 384-3388

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

Interoperability endpoints

  • Direct secure messaging: fyasin337620@direct.ynhh.org

Organizations & group practices 7

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1463529600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766448000000",
    "number": "1649627704",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "450 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155450",
            "telephone_number": "617-632-3000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155450",
            "telephone_number": "617-632-3000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "501 2nd St Ste 415",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941074132",
            "country_code": "US",
            "telephone_number": "415-529-4567",
            "fax_number": "415-291-0489",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "840 Irving St",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941222311",
            "country_code": "US",
            "telephone_number": "415-590-6140",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "20 York St",
            "address_purpose": "LOCATION",
            "city": "New Haven",
            "state": "CT",
            "postal_code": "065103220",
            "country_code": "US",
            "telephone_number": "203-688-4242",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YASIN",
        "first_name": "FAIZA",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-05-18",
        "last_updated": "2025-12-23",
        "certification_date": "2025-12-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "1023176",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A168706",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.