Individual provider Active NPI

Avi Bart Markowitz, M.D.

  • Hematology & Oncology Physician
  • Galveston, TX
National Provider Identifier
1336155662
Registry record updated Mar 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
H3701 Issued in TX
Practice address
301 University Blvd
Galveston, TX 77555-1022
Phone
(409) 747-0890
NPI assigned
Jul 31, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 19, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X H3701 TX
Hematology & Oncology Physician 207RH0003X H3701 TX Primary

Addresses

Primary practice location

301 University Blvd
Galveston, TX 77555-1022

Mailing address

301 University Blvd
Galveston, TX 77555-1022
Phone (409) 747-0890

Other identifiers 2

IdentifierTypeStateIssuer
100522506MedicaidTX
100522507OtherTXCSHCN MEDICAID

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
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
I20050119000580 TX Practitioner - Hematology/OncologyPractitioner - Internal MedicinePractitioner - Medical Oncology 3577512367 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Internal Medicine
Education
University of California, San Francisco School of Medicine, 1981
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Utmb Faculty Group PracticeGroup PAC ID 3375456734, 1,083 clinicians

Practice addresses (Care Compare)

301 University Blvd
Galveston, TX 77555-5302
Phone (409) 772-2222

Hospital & facility affiliations

  • University of Texas Medical Branch Galveston Hospital, Galveston, TX, CCN 450018

Merit-based Incentive Payment System (MIPS)

Final score
78.88 of 100Reported as group
Quality
73.38
Improvement activities
40
Cost
78.42

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Physicians Referral Service CurrentSince Aug 7, 2018 Accepting new patients
Utmb Faculty Group Practice CurrentSince Jan 13, 2005 Accepting new patients
Avi B Markowitz, MD, PA Hematology & Oncology PastSince Jun 1, 1995 Accepting new patients

Locations

1005 Harborside Dr
Fl 6
Galveston, TX 77555

301 University Blvd
Galveston, TX 77555
Phone (409) 747-1883

1515 Holcombe Blvd
Houston, TX 77030
Phone (713) 794-5446

1515 Holcombe Blvd
#R4212
Houston, TX 77030
Phone (713) 794-5446

1515 Holcombe Blvd
#M
Houston, TX 77030
Phone (713) 792-6127

Interoperability endpoints

  • Direct secure messaging: amarkowitzmd937@direct.utmb.edu

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 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": "1154304000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773878400000",
    "number": "1336155662",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "301 UNIVERSITY BLVD",
            "city": "GALVESTON",
            "state": "TX",
            "postal_code": "775551022",
            "telephone_number": "409-747-0890"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "301 UNIVERSITY BLVD",
            "city": "GALVESTON",
            "state": "TX",
            "postal_code": "775551022",
            "telephone_number": "409-747-0890"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARKOWITZ",
        "first_name": "AVI",
        "middle_name": "BART",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-31",
        "last_updated": "2026-03-19",
        "certification_date": "2026-03-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "TX",
            "license": "H3701",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "TX",
            "license": "H3701",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100522506",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CSHCN MEDICAID",
            "identifier": "100522507",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Galveston, TX

Sources for this page

Verify at the official NPI Registry.