Individual provider Active NPI

Steven T. Rosen, M.D.

  • Hematology (Internal Medicine) Physician
  • Duarte, CA
National Provider Identifier
1811968126
Registry record updated Mar 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology (Internal Medicine) PhysicianTaxonomy code 207RH0000X
License
G129723 Issued in CA
Practice address
1500 Duarte Rd
Duarte, CA 91010-3012
Phone
(626) 256-4673
NPI assigned
Jan 27, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 25, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology (Internal Medicine) Physician 207RH0000X G129723 CA Primary
Internal Medicine Physician 207R00000X G129723 CA

Addresses

Primary practice location

1500 Duarte Rd
Duarte, CA 91010-3012

Mailing address

PO Box 512185
Los Angeles, CA 90051-0185

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address direct@cityofhope.direct-ci.com CITY OF HOPE MEDICAL FOUNDATION

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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

Enrollment IDStateProvider typePAC IDDetails
I20140926001337 CA Practitioner - Hematology 4082676135 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology
Education
Northwestern University Feinberg Medical School, 1976
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
City of Hope Medical FoundationGroup PAC ID 3779751656, 964 clinicians

Practice addresses (Care Compare)

1500 Duarte Rd
Duarte, CA 91010-3012
Phone (626) 256-4673

1500 E Duarte Rd
Duarte, CA 91010-3012

209 Fair Oaks Ave
South Pasadena, CA 91030-1814
Phone (626) 396-2900

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
92.8 of 100Reported as group
Quality
78.51
Promoting interoperability
100
Improvement activities
40
Cost
70.37

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
G129723CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
City of Hope Medical Foundation Hematology & Oncology CurrentSince Jul 1, 2014 Accepting new patients
Northwestern Medical Faculty Foundation Current Accepting new patients
Blessing Hospital Past Accepting new patients
California Cancer Specialists Medical Group Inc Hematology & Oncology Past Accepting new patients

Locations

1500 Duarte Rd
Duarte, CA 91010
Phone (626) 359-8111

1333 S Mayflower Ave
Fl 2
Monrovia, CA 91016
Phone (626) 775-3514

209 Fair Oaks Ave
South Pasadena, CA 91030
Phone (626) 359-8111

Dept 5777
Carol Stream, IL 60122

Interoperability endpoints

  • Direct secure messaging: srosen10653@cityofhope.direct-ci.com
  • Direct secure messaging: direct@cityofhope.direct-ci.com

Organizations & group practices 4

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 1

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": "1138320000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774396800000",
    "number": "1811968126",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 512185",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900510185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 DUARTE RD",
            "city": "DUARTE",
            "state": "CA",
            "postal_code": "910103012",
            "telephone_number": "626-256-4673"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROSEN",
        "first_name": "STEVEN",
        "middle_name": "T.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-27",
        "last_updated": "2026-03-25",
        "certification_date": "2026-03-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "CA",
            "license": "G129723",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G129723",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "direct@cityofhope.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
            "address_1": "1500 Duarte Rd",
            "city": "Duarte",
            "state": "CA",
            "country_code": "US",
            "postal_code": "910103012",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Duarte, CA

Sources for this page

Verify at the official NPI Registry.