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Colorectal Surgery (Proctology)

Maamoun A. Harmouch, MD

Works at hospitals in Webster, TX · Nassau Bay, TX · Texas

Summary

Maamoun A. Harmouch, MD (Colorectal Surgery (Proctology)) is listed by Medicare at 3 hospitals in Webster, TX and Nassau Bay, TX. NPI 1497098552. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Maamoun A. Harmouch, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Colorectal Surgery (Proctology)Primary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
Northeastern Ohio University College Of MedicineMedical school
MaleGender (as listed)
CLS Health PLLCGroup practice

Quick answers

Which hospitals does Maamoun A. Harmouch work at?
Medicare's official clinician data lists Maamoun A. Harmouch at 3 hospitals: HCA Houston Healthcare Clear Lake, Houston Methodist Clear Lake Hospital and Memorial Hermann Houston Physicians Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Maamoun A. Harmouch see patients?
Medicare's clinician data lists 2 practice locations, including Pearland, TX and Webster, TX. Call before your visit to confirm the address.
What is Maamoun A. Harmouch's specialty?
Medicare lists Colorectal Surgery (Proctology) as the primary specialty, and also General Surgery.
Does Maamoun A. Harmouch accept Medicare assignment?
Yes. Medicare's clinician data says Maamoun A. Harmouch accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Maamoun A. Harmouch?
(281) 332-3909, as listed in official Medicare / NPI Registry data.
What is Maamoun A. Harmouch's NPI number?
1497098552. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Maamoun A. Harmouch works

Medicare's Facility Affiliation Data lists Maamoun A. Harmouch at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Maamoun A. Harmouch is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Maamoun A. Harmouch as a member of this group (CMS data updated 2026-10-02).

  • CLS Health PLLC180 clinicians in the group

Specialties

Find other Colorectal Surgery (Proctology) doctors in Texas →

Other colorectal surgeons in Pearland

Clinicians with the same Medicare primary specialty in Pearland, TX — not a recommendation.

All colorectal surgeons in Pearland →

Clinician information

CredentialMD
Medical schoolNortheastern Ohio University College Of Medicine
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1497098552
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians