Maamoun A Harmouch, M.D.

Primary specialty

Colon & Rectal Surgery PhysicianTaxonomy code 208C00000X

License

R9495 Issued in TX

Practice address

600 N Kobayashi Ste 213
Webster, TX 77598-4841

Phone

(281) 332-3909

Fax

(281) 336-1616

NPI assigned

Mar 27, 2013

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

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

Colorectal Surgery (Proctology)Also: General Surgery

Education

Northeastern Ohio University College of Medicine, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

CLS Health PLLCGroup PAC ID 7214962117, 176 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houston Methodist Clear Lake Hospital Hospital, Nassau Bay, TX, CCN 450709
• HCA Houston Healthcare Clear Lake Hospital, Webster, TX, CCN 450617
• Memorial Hermann Houston Physicians Hospital Hospital, Webster, TX, CCN 670008

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/CFFDBA
• Direct secure messaging: mharmouch157517@direct.stlukeshealth.org

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.

• CLS Health PLLC

  dba CLS Health

  • Pulmonary Disease Physician
  • Webster, TX
  • NPI 1750305355
  Medicare reassignment Care Compare group NPD
• Cardiovascular Care Providers, Inc.

  • Specialist
  • Houston, TX
  • NPI 1437242617
  NPD (past)

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

• Chca Clear Lake LP

  dba HCA Houston Healthcare Clear Lake

  • General Acute Care Hospital
  • Webster, TX
  • NPI 1063466035
  Care Compare affiliation
• Houston Methodist St. John Hospital

  dba Houston Methodist Clear Lake Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1952723967
  Care Compare affiliation
• Webster Surgical Specialty Hospital, LLC

  dba Memorial Hermann Houston Physicians' Hospital

  • General Acute Care Hospital
  • Webster, TX
  • NPI 1285699835
  Care Compare affiliation

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

{
    "created_epoch": "1364342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1497098552",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 58538",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775988538",
            "telephone_number": "281-332-3909",
            "fax_number": "281-336-1616"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 N KOBAYASHI STE 213",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775984841",
            "telephone_number": "281-332-3909",
            "fax_number": "281-336-1616"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "500 N Kobayashi Ste C",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984722",
            "country_code": "US",
            "telephone_number": "281-816-3092",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 110",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-338-1701",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4615 Southwest Fwy Ste 1000",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770277108",
            "country_code": "US",
            "telephone_number": "281-332-3909",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 309",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-724-8332",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARMOUCH",
        "first_name": "MAAMOUN",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-03-27",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "LA",
            "license": "307695",
            "primary": false
        },
        {
            "code": "208C00000X",
            "taxonomy_group": "",
            "desc": "Colon & Rectal Surgery",
            "state": "TX",
            "license": "R9495",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "TX",
            "license": "R9495",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kathleen Hansen, M.D.
• Kavin G. Hanzik, RN, NP-C
• Racheal Hardin, NP
• Anna Hargrave, DO
• Anna Marie Harkins Jr., DO
• Ihab Yahya Harmouche
• Jihad Mohamad Harmouche
• Haroonur Rashid MD PLLC
• Vivian Ruth Hartig, MD
• Harvey E. Slusky MD PA

• Colon & Rectal Surgery Physician in Webster, TX
• Providers in Webster, TX by specialty
• Colon & Rectal Surgery Physician in Texas

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