Maamoun A. Harmouch, M.D.
NPI 1497098552ActiveIndividual· Colon & Rectal Surgery· Webster, TX
Colon & Rectal Surgery (M.D.) in Webster, Texas, trained at Northeastern Ohio University College of Medicine (class of 2013). 180 Medicare patients in 2024, $110,052 paid; nearly all of their 347 Part D prescriptions were generic (98%). Intuitive Surgical, Inc. was the largest of 11 companies reporting payments in 2025, $1,051 in all, mostly food and beverage.
Overview
| NPI | 1497098552 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 27, 2013 |
| Last updated in NPPES | Oct 15, 2026 |
| Certified by provider | Oct 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | R9495 | TX |
| Surgery | 208600000X | 307695 | LA |
| Surgery | 208600000X | R9495 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Colorectal Surgery (Proctology) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 180 |
|---|---|
| Services billed | 1,292 across 72 procedure codes |
| Paid by Medicare | $110,052 |
Part D prescriptions in 2024
| Prescriptions (claims) | 347 · 363 30-day fills |
|---|---|
| Patients | 127 |
| Total drug cost | $2,961 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Northeastern Ohio University College of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Colorectal Surgery (Proctology) |
| Secondary specialties | General Surgery |
Medical group
- Cls Health PLLCWebster, TX · 180 clinicians
Hospital affiliations
- HCA Houston Healthcare Clear LakeWebster, TX
- Houston Methodist Clear Lake HospitalNassau Bay, TX
- Memorial Hermann Houston Physicians HospitalWebster, TX
Industry payments (Open Payments)
- 2025$1,051 · 15 payments from 11 companies
- 2024$22,355 · 44 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $610.00 | 2 |
| Aroa Biosurgery Incorporated | $173.72 | 3 |
| Medtronic, Inc. | $59.98 | 1 |
| Novo Nordisk Inc | $43.78 | 2 |
| Baxter Healthcare | $39.94 | 1 |
What the 2025 payments were for
- Food and Beverage$550.55 · 14 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$500.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other colorectal surgeons in Webster
- 1508022740
- 1649865981