Doctor profile · Federal record
Dr. Maamoun Harmouch, M.D.
Colon & Rectal Surgery Physician (CMS: Colorectal Surgery (Proctology)) · Surgery Physician · Surgery Physician · Webster, TX
- NPI 1497098552
- Accepts Medicare
- 13 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
600 N Kobayashi Ste 213
Webster, TX 775984841
(281) 332-3909
fax (281) 336-1616 - Additional location
-
4615 Southwest Fwy Ste 1000
Houston, TX 770277108 - Additional location
-
500 N Kobayashi Ste C
Webster, TX 775984722
(281) 816-3092 - Additional location
-
600 N Kobayashi Ste 110
Webster, TX 775984841
(281) 338-1701 - Additional location
-
600 N Kobayashi Ste 309
Webster, TX 775984841
(281) 724-8332 - Mailing address
-
Po Box 58538
Webster, TX 775988538
Show 2 more locations
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- January 20, 2026
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 208C00000X — NUCC code
- State licenses (2)
- Texas #R9495 · Louisiana #307695
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497098552. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
407
Distinct HCPCS
10
Medicare allowed
$61,307
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 55 | 31 | $79 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 51 | 44 | $92 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 43 | 30 | $175 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 41 | 28 | $129 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 41 | 41 | $172 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 38 | 38 | $223 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 37 | 33 | $128 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 36 | 36 | $164 | |
46600 |
Diagnostic exam of anus using an endoscope | 34 | 28 | $119 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 20 | 12 | $120 |
In context: peer comparison
Among 1 peers in Webster Colon & Rectal Surgery Physician, average services per provider: 37. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$22,058
Transactions
41
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 20 | $21,563.37 | |
| Medtronic, INC. | 8 | $196.64 | |
| Novo Nordisk INC | 3 | $64.02 | |
| Tela Bio, INC. | 3 | $59.97 | |
| Baxter Healthcare | 1 | $46.20 | |
| Janssen Biotech, INC. | 2 | $37.16 | |
| Boston Scientific Corporation | 1 | $28.64 | |
| Abbvie INC. | 1 | $27.71 | |
| Sumitomo Pharma America, INC. | 1 | $21.96 | |
| Kerecis Limited | 1 | $12.37 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
162
Patients
161
Total drug cost
$1,341
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tramadol Hcl | Generic | 58 | 58 | $244 |
| Celecoxib | Generic | 35 | 34 | $737 |
| Metronidazole | Generic | 26 | 26 | $82 |
| Neomycin Sulfate | Generic | 25 | 25 | $167 |
| Gabapentin | Generic | 18 | 18 | $111 |
Hospital affiliations
Frequently asked questions
What is Dr. Maamoun Harmouch's medical specialty?
Dr. Maamoun Harmouch practices Colon & Rectal Surgery Physician in Webster, TX.
Where does Dr. Maamoun Harmouch practice?
Dr. Maamoun Harmouch practices at 600 N Kobayashi Ste 213, Webster, TX 775984841. Office phone: 2813323909.
What is Dr. Maamoun Harmouch's NPI?
Dr. Maamoun Harmouch's National Provider Identifier (NPI) is 1497098552, issued by NPPES.
Does Dr. Maamoun Harmouch accept Medicare assignment?
Yes. Dr. Maamoun Harmouch accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maamoun Harmouch commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.