Individual provider Active NPI

Darwin Roman, M.D.

  • Hematology & Oncology Physician
  • Newport Beach, CA
National Provider Identifier
1821478082
Registry record updated Nov 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
A161572 Issued in CA
Practice address
1441 Avocado Ave Ste 301
Newport Beach, CA 92660-7704
Phone
(657) 241-9805
Fax
(949) 272-2096
NPI assigned
Jun 3, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 7, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 31646 OK
Hematology & Oncology Physician 207RH0003X A161572 CA Primary

Addresses

Primary practice location

1441 Avocado Ave Ste 301
Newport Beach, CA 92660-7704

Mailing address

1441 Avocado Ave Ste 301
Newport Beach, CA 92660-7704
Phone (657) 241-9805

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://memorialcare.org/fhir/api/FHIR/R4/ Health Information Exchange (HIE) MemorialCare Medical Foundation
Direct Messaging Address darwin.roman@direct.usc.edu Direct USC CARE MEDICAL GROUP, INC

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
I20220824001325 CA Practitioner - Hematology/OncologyPractitioner - Internal MedicinePractitioner - HematologyPractitioner - Medical Oncology 6204127251 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Hematology, Internal Medicine, Medical Oncology
Education
University of Oklahoma College of Medicine, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Memorialcare Medical FoundationGroup PAC ID 8729277314, 555 clinicians
Usc Care Medical Group IncGroup PAC ID 0446157747, 1,378 clinicians

Practice addresses (Care Compare)

1441 Avocado Ave
Suite 301
Newport Beach, CA 92660-7704
Phone (949) 272-2095

1520 San Pablo St
Los Angeles, CA 90033-5310
Phone (800) 872-2273

1520 San Pablo St 1St Floor N
Los Angeles, CA 90033-5310
Phone (800) 872-2273

300 Old Newport Blvd
Newport Beach, CA 92663-4121
Phone (949) 646-6441

330 Old Newport Blvd
Newport Beach, CA 92663-4121

Hospital & facility affiliations

  • Memorialcare Orange Coast Medical Center Hospital, Fountain Valley, CA, CCN 050678
  • Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603
  • Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224
  • Usc Kenneth Norris Jr Cancer Hospital Hospital, Los Angeles, CA, CCN 050660

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
31646OKMDInternal Medicine Physician
A161572CAMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Usc Care Medical Group, Inc Internal Medicine CurrentSince Aug 1, 2022 Accepting new patients
Usc Care Medical Group, Inc CurrentSince Aug 1, 2022 Accepting new patients
Memorialcare Medical Foundation Internal Medicine CurrentSince Jan 1, 2026 Accepting new patients
Bristol Park Medical Group, Inc Internal Medicine Past Accepting new patients

Locations

420 34th St
Bakersfield, CA 93301
Phone (661) 324-4647

722 Baker St
Costa Mesa, CA 92626
Phone (714) 557-6300

18111 Brookhurst St
Ste 6100
Fountain Vly, CA 92708
Phone (714) 378-7330

17360 Brookhurst St
Fountain Vly, CA 92708
Phone (657) 241-3592

19582 Beach Blvd
Ste 206
Huntington Beach, CA 92648
Phone (323) 442-6050

24411 Health Center Dr
Ste 620
Laguna Hills, CA 92653
Phone (657) 241-8270

1520 San Pablo St
Los Angeles, CA 90033
Phone (323) 442-5849

1441 Avocado Ave
Ste 301
Newport Beach, CA 92660
Phone (949) 272-2095

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

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 4

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": "1433289600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762473600000",
    "number": "1821478082",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1441 AVOCADO AVE STE 301",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926607704",
            "telephone_number": "657-241-9805",
            "fax_number": "949-272-2096"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1441 AVOCADO AVE STE 301",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926607704",
            "telephone_number": "657-241-9805",
            "fax_number": "949-272-2096"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROMAN",
        "first_name": "DARWIN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-06-03",
        "last_updated": "2025-11-07",
        "certification_date": "2025-11-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OK",
            "license": "31646",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A161572",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://memorialcare.org/fhir/api/FHIR/R4/",
            "affiliation": "Y",
            "endpointDescription": "MemorialCare FHIR Endpoint",
            "affiliationName": "MemorialCare Medical Foundation",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "17360 Brookhurst St",
            "city": "Fountain Valley",
            "state": "CA",
            "country_code": "US",
            "postal_code": "927083720",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "darwin.roman@direct.usc.edu",
            "affiliation": "Y",
            "affiliationName": "USC CARE MEDICAL GROUP, INC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1520 San Pablo St",
            "city": "Los Angeles",
            "state": "CA",
            "country_code": "US",
            "postal_code": "900335310",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Newport Beach, CA

Sources for this page

Verify at the official NPI Registry.