Omar Saad Dimachkieh, M.D.

Primary specialty

Orthopaedic Hand Surgery PhysicianTaxonomy code 207XS0106X

License

R2576 Issued in TX

Practice address

7401 Main St
Houston, TX 77030-4509

Phone

(713) 799-2300

Fax

(713) 794-3380

NPI assigned

Jun 17, 2011

Last updated

Dec 18, 2025By the provider in NPPES

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

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

Hand SurgeryAlso: Orthopedic Surgery

Education

Baylor College of Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Select Physical Therapy Texas Limited PartnershipGroup PAC ID 6608868070, shared by 9 NPIs, 91 clinicians

Ortholonestar PLLCGroup PAC ID 9931529062, 416 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Texas Orthopedic Hospital Hospital, Houston, TX, CCN 450804
• Memorial Hermann Hospital System Hospital, Houston, TX, CCN 450184
• Memorial Hermann Northeast Hospital Hospital, Humble, TX, CCN 450684
• Houston Methodist Hospital Hospital, Houston, TX, CCN 450358
• HCA Houston Healthcare Kingwood Hospital, Kingwood, TX, CCN 450775

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: odimachkieh13844@direct.uth.org
• Direct secure messaging: omar.dimachkieh.1@15533.direct.athenahealth.com

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.

• Ortholonestar, PLLC

  • Orthopaedic Surgery Physician
  • Houston, TX
  • NPI 1942860176
  Medicare reassignment Care Compare group NPD
• Ut Physicians

  • Anesthesiology Physician
  • Houston, TX
  • NPI 1033157821
  Medicare reassignment NPD
• Ortholonestar, PLLC

  • Orthopaedic Surgery Physician
  • Tomball, TX
  • NPI 1073475679
  NPD
• Ut Physicians

  dba UT Health Services

  • Health Educator
  • Houston, TX
  • NPI 1316534472
  NPD

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

• KPH-Consolidation, Inc.

  dba HCA Houston Healthcare North Cypress a Campus of HCA Houston Healthcar

  • General Acute Care Hospital
  • Kingwood, TX
  • NPI 1811942238
  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS NW Radiation Therapy

  • Radiology Clinic/Center
  • Houston, TX
  • NPI 1013948553

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Woodlands Outpatient Imaging System

  • Radiology Clinic/Center
  • The Woodlands, TX
  • NPI 1275564858

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba Memorial Hermann Northeast

  • General Acute Care Hospital
  • Humble, TX
  • NPI 1295843787
  Care Compare affiliation
• Memorial Hermann Health System

  dba Memorial Hermann Outpatient Imaging-Southwest

  • Radiology Clinic/Center
  • Houston, TX
  • NPI 1407959448

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Friendswood Imaging

  • Radiology Clinic/Center
  • Friendswood, TX
  • NPI 1508896267

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Pearland Outpatient Imaging Center

  • Radiology Clinic/Center
  • Pearland, TX
  • NPI 1669402335

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1730132234
  Care Compare affiliation
• Orthopedic Hospital LTD

  dba Texas Orthopedic Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1134166192
  Care Compare affiliation
• The Methodist Hospital

  dba Houston Methodist Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1548387418
  Care Compare affiliation

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

{
    "created_epoch": "1308268800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766016000000",
    "number": "1881989853",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7401 MAIN ST",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770304509",
            "telephone_number": "713-799-2300",
            "fax_number": "713-794-3380"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7401 MAIN ST",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770304509",
            "telephone_number": "713-799-2300",
            "fax_number": "713-794-3380"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "21216 Northwest Fwy Ste 620",
            "address_purpose": "LOCATION",
            "city": "Cypress",
            "state": "TX",
            "postal_code": "774294699",
            "country_code": "US",
            "telephone_number": "281-807-4380",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "22751 Professional Dr Ste 250",
            "address_purpose": "LOCATION",
            "city": "Kingwood",
            "state": "TX",
            "postal_code": "773396028",
            "country_code": "US",
            "telephone_number": "281-668-7205",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "13440 University Blvd Ste 100",
            "address_purpose": "LOCATION",
            "city": "Sugar Land",
            "state": "TX",
            "postal_code": "774794907",
            "country_code": "US",
            "telephone_number": "832-500-8135",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "26400 Kuykendahl Rd Ste A250",
            "address_purpose": "LOCATION",
            "city": "Tomball",
            "state": "TX",
            "postal_code": "773752984",
            "country_code": "US",
            "telephone_number": "281-407-5092",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIMACHKIEH",
        "first_name": "OMAR",
        "middle_name": "SAAD",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-06-17",
        "last_updated": "2025-12-18",
        "certification_date": "2025-12-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "TX",
            "license": "R2576",
            "primary": false
        },
        {
            "code": "207XS0106X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Hand Surgery",
            "state": "TX",
            "license": "R2576",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anthony John Dima-Ala
• Gloria D Dima-Ala
• Cheryl Dimacali
• Perihan Dimachkie, MD
• Amy Li Dimachkieh, M.D.
• Jennifer Diane Dimaggio
• Lauren Dimaggio, LMFT
• Timothy Ebba Dimalanta
• Lenka Dimanina
• Michele Ann Dimarcantonio, M.S.,C.C.C.,SLP

• Orthopaedic Hand Surgery Physician in Houston, TX
• Providers in Houston, TX by specialty
• Orthopaedic Hand Surgery Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 18, 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.