Individual provider Active NPI

Thomas Joseph Loss, MD

  • Hematology & Oncology Physician
  • Phoenix, AZ
National Provider Identifier
1063973980
Registry record updated Oct 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
81825 Issued in AZ
Practice address
925 E McDowell Rd
Phoenix, AZ 85006-2502
Phone
(602) 521-3700
Fax
(602) 521-3701
NPI assigned
Mar 26, 2019
Last updated
Oct 8, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 8, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X 81825 AZ Primary
Hematology & Oncology Physician 207RH0003X 4301506275 MI
Internal Medicine Physician 207R00000X 81825 AZ
Internal Medicine Physician 207R00000X 4301506275 MI

Addresses

Primary practice location

925 E McDowell Rd
Phoenix, AZ 85006-2502

Mailing address

925 E McDowell Rd
Phoenix, AZ 85006-2502
Phone (602) 521-3700

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
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
I20220801000991 MI Practitioner - Internal Medicine 2163756040 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare

Merit-based Incentive Payment System (MIPS)

Final score
89.64 of 100Reported as group
Quality
85.06
Promoting interoperability
100
Improvement activities
40
Cost
77.9

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
81825AZMDInternal Medicine Physician
4301506275MIMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Beaumont Medical Group Hospital -Based Services CurrentSince Jul 1, 2022 Accepting new patients

Locations

468 Cadieux Rd
Grosse Pointe Woods, MI 48230
Phone (313) 343-1000

26901 Beaumont Blvd
Ste 3D
Southfield, MI 48033
Phone (947) 522-1860

44201 Dequindre Rd
Troy, MI 48085
Phone (248) 471-8255

Interoperability endpoints

  • Direct secure messaging: tloss1244177@epic00.shdirect.org

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1553558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791417600000",
    "number": "1063973980",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "925 E MCDOWELL RD",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850062502",
            "telephone_number": "602-521-3700",
            "fax_number": "602-521-3701"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "925 E MCDOWELL RD",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850062502",
            "telephone_number": "602-521-3700",
            "fax_number": "602-521-3701"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOSS",
        "first_name": "THOMAS",
        "middle_name": "JOSEPH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-26",
        "last_updated": "2026-10-08",
        "certification_date": "2026-10-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "AZ",
            "license": "81825",
            "primary": true
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "MI",
            "license": "4301506275",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "AZ",
            "license": "81825",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301506275",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Phoenix, AZ

Sources for this page

Verify at the official NPI Registry.