NPIMap

Individual provider Active NPI

Leonard Thomas Hackett, M.D.

  • Hematology & Oncology Physician
  • Fresno, CA
National Provider Identifier
1669466868
Registry record updated Oct 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
G52529 Issued in CA
Practice address
7130 N Millbrook Ave
Fresno, CA 93720-3347
Phone
(559) 326-1222
Fax
(559) 326-1225
NPI assigned
Sep 2, 2005
Last updated
Oct 9, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X G52529 CA Primary

Addresses

Primary practice location

7130 N Millbrook Ave
Fresno, CA 93720-3347

Mailing address

PO Box 25100
Fresno, CA 93729-5100
Phone (559) 326-1222

Other practice location 1

1125 E Spruce Ave Ste 103
Fresno, CA 93720-3387
Phone (559) 878-4510

Other identifiers 1

IdentifierTypeStateIssuer
PO1345512OtherRAILROAD MEDICARE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20080528000535 CA Practitioner - HematologyPractitioner - Medical Oncology 9133146160 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
HematologyAlso: Medical Oncology
Education
Other, 1977
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

7130 N Millbrook Ave
Fresno, CA 93720-3347
Phone (559) 326-1222

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
89.27
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
California Cancer Associates for Research and Excellence Inc Hematology & Oncology CurrentSince Jul 15, 2014 Accepting new patients
California Cancer Associates for Research and Excellence Inc Hematology & Oncology CurrentSince Jul 15, 2014 Accepting new patients
Fresno Community Hospital and Medical Center Past Accepting new patients
Saint Agnes Medical Center Past Accepting new patients

Locations

1125 E Spruce Ave
Ste 103
Fresno, CA 93720
Phone (553) 475-0286

7130 N Millbrook Ave
Fresno, CA 93720
Phone (559) 326-1222

7130 N Millbrook Ave
Ste 100
Fresno, CA 93720
Phone (209) 447-4949

Interoperability endpoints

  • Direct secure messaging: leonard.hackett@ccare.direct.varian.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

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": "1125619200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759968000000",
    "number": "1669466868",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 25100",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937295100",
            "telephone_number": "559-326-1222",
            "fax_number": "559-421-7004"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7130 N MILLBROOK AVE",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937203347",
            "telephone_number": "559-326-1222",
            "fax_number": "559-326-1225"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1125 E Spruce Ave Ste 103",
            "address_purpose": "LOCATION",
            "city": "Fresno",
            "state": "CA",
            "postal_code": "937203387",
            "country_code": "US",
            "telephone_number": "559-878-4510",
            "fax_number": "559-878-4515",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HACKETT",
        "first_name": "LEONARD",
        "middle_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-02",
        "last_updated": "2025-10-09",
        "certification_date": "2025-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "G52529",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "PO1345512",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Fresno, CA

Sources for this page

Verify at the official NPI Registry.