Marian J Oommen, DO

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

T2186 Issued in TX

Practice address

2040 W Gray St Ste And200
Houston, TX 77019-3658

Phone

(713) 442-3400

NPI assigned

Jun 5, 2018

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 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

Family Practice

Education

Kansas City University of Med & Biosciences, College of Osteo Med, 2018

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)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mjacob37777@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

  dba Kelsey Seybold Clinic

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

  Family Medicine

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1528156800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750377600000",
    "number": "1619469681",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11511 SHADOW CREEK PKWY",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775847298",
            "telephone_number": "713-442-4997"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2040 W GRAY ST STE AND200",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770193658",
            "telephone_number": "713-442-3400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OOMMEN",
        "first_name": "MARIAN",
        "middle_name": "J",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-06-05",
        "last_updated": "2025-06-20",
        "certification_date": "2025-06-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "TX",
            "license": "T2186",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "426987001",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "426987003",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Rhyan Ooi
• Ann Elizabeth Oommen, AU.D
• Anna Oommen, PHARMD, MBA
• Biju Oommen, M.D.
• Liya Oommen
• Roney Mathew Oommen
• Tobin Oommen, AGACNP-BC
• Vinit Varghese Oommen, M.D.
• Op Pharmacy LLC (OnePoint Patient Care)
• Opa 1, LTD (Orthotic & Prosthetic Associates)

• Family Medicine Physician in Houston, TX
• Providers in Houston, TX by specialty
• Family Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 20, 2025; 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.