Mehran Massumi, M.D.

Primary specialty

Interventional Cardiology PhysicianTaxonomy code 207RI0011X

License

Q0118 Issued in TX

Practice address

2727 W Holcombe Blvd
Houston, TX 77025-1669

Phone

(713) 442-0000

NPI assigned

Jun 16, 2010

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 3

Electronic endpoints 2

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

Specialty

Cardiovascular Disease (Cardiology)Also: Internal Medicine

Education

Other, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Kelsey-Seybold Medical Group, PLLCGroup PAC ID 9739093527, 941 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Baylor St Lukes Medical Center Hospital, Houston, TX, CCN 450193

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mmassumi22699@direct.kelsey-seybold.com

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.

• Kelsey-Seybold Medical Group, PLLC

  • Multi-Specialty Clinic/Center
  • Houston, TX
  • NPI 1013915255

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• St. Luke'S Diagnostic Cath Lab, LLP

  • Clinic/Center
  • Houston, TX
  • NPI 1841296357

  Cardiovascular Disease

  Medicare reassignment NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• CHI St. Luke'S Health Baylor College of Medicine Medical Center

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1184622847
  Care Compare affiliation

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

{
    "created_epoch": "1276646400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777593600000",
    "number": "1942521711",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11511 SHADOW CREEK PKWY",
            "address_2": "CREDENTIALING SERVICES",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775847298",
            "telephone_number": "713-442-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2727 W HOLCOMBE BLVD",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770251669",
            "telephone_number": "713-442-0000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASSUMI",
        "first_name": "MEHRAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-06-16",
        "last_updated": "2026-05-01",
        "certification_date": "2026-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "TX",
            "license": "Q0118",
            "primary": false
        },
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "TX",
            "license": "Q0118",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "371441203",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "371441201",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "371441202",
            "state": "TX"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmassumi22699@direct.kelsey-seybold.com",
            "affiliation": "N",
            "endpointDescription": "digital contact information",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "2727 W Holcombe Blvd",
            "city": "Houston",
            "state": "TX",
            "country_code": "US",
            "postal_code": "770251669",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://ssrx.ksnet.com/FhirProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "FHIR endpoint URL",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "2727 W Holcombe Blvd",
            "city": "Houston",
            "state": "TX",
            "country_code": "US",
            "postal_code": "770251669",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Edward Krauss Massin, MD
• Marcos Vincent Masson, MD
• Mariam Massoud
• Christina Marie Massrey, MD
• Mahsa Massumi, MD
• Mastek Enterprises Inc.
• Desiree Marie Masten, MD
• Master Geriatric Care LLC
• Master Peace Wellness & Consulting, PLLC
• Master Pediatric Home Care,P.C.

• Interventional Cardiology Physician in Houston, TX
• Providers in Houston, TX by specialty
• Interventional Cardiology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.