NPIMap

Individual provider Active NPI

Adan A Rios, MD

  • Hematology & Oncology Physician
  • Houston, TX
National Provider Identifier
1942378799
Registry record updated Sep 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
E8850 Issued in TX
Practice address
6400 Fannin St Ste 2900
Houston, TX 77030-1555
Phone
(713) 704-3961
Fax
(713) 704-6914
NPI assigned
Dec 1, 2006
Last updated
Sep 1, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 1, 2026

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 E8850 TX Primary

Addresses

Primary practice location

6400 Fannin St Ste 2900
Houston, TX 77030-1555

Mailing address

6431 Fannin Ut Medical School
MSB 5.282
Houston, TX 77030
Phone (832) 325-6520

Other identifiers 5

IdentifierTypeStateIssuer
122464405MedicaidTX
E8850OtherTXSTATE LISCENSE
82810XOtherTXBCBS
8J1935OtherTXMCBCBS
081110101MedicaidTX

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
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
I20081216000052 TX Practitioner - Medical OncologyPractitioner - Internal Medicine 2668534249 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
Other, 1970
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Ut PhysiciansGroup PAC ID 8426960360, 1,744 clinicians

Practice addresses (Care Compare)

6400 Fannin St
Suite 2700
Houston, TX 77030-1539
Phone (713) 486-5000

6410 Fannin St
Houston, TX 77030-3005

6411 Fannin St
Houston, TX 77030-1501
Phone (713) 704-0093

6431 Fannin St
MSB2.100
Houston, TX 77030-1501
Phone (713) 500-7700

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.11 of 100Reported as group
Quality
69.15
Promoting interoperability
100
Improvement activities
40
Cost
73.63

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Ut Physicians CurrentSince Nov 1, 2008 Accepting new patients
Ut Physicians CurrentSince Nov 1, 2008 Accepting new patients
Oncol Therapeutics, PA Past Accepting new patients

Locations

6410 Fannin St
Ste 722
Houston, TX 77030
Phone (832) 325-6520

6400 Fannin St
Ste 2900
Houston, TX 77030
Phone (713) 704-3010

6431 Fannin St
#5282
Houston, TX 77030

6410 Fannin St
Ste 500
Houston, TX 77030
Phone (713) 500-5714

1200 Binz St
Ste 910
Houston, TX 77004
Phone (713) 524-1585

8810 Highway 6
Ste 100
Sienna Plantation, TX 77459
Phone (713) 486-1200

Interoperability endpoints

  • Direct secure messaging: adan.rios@direct.memorialhermann.org

Organizations & group practices 3

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 10

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": "1164931200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1942378799",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6431 FANNIN UT MEDICAL SCHOOL",
            "address_2": "MSB 5.282",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "77030",
            "telephone_number": "832-325-6520",
            "fax_number": "713-512-7140"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6400 FANNIN ST STE 2900",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301555",
            "telephone_number": "713-704-3961",
            "fax_number": "713-704-6914"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RIOS",
        "first_name": "ADAN",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-01",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "TX",
            "license": "E8850",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "122464405",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LISCENSE",
            "identifier": "E8850",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "82810X",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MCBCBS",
            "identifier": "8J1935",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "081110101",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.