NPPES file of Aug 9, 2026

Maamoun A. Harmouch, M.D.

Colon & Rectal Surgery Physician · Webster, TX

Maamoun A. Harmouch, M.D. is a colon & rectal surgery physician with a practice address in Webster, Texas, and NPI 1497098552, issued on Mar 27, 2013. Check the license (Texas R9495, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497098552
Name
Maamoun A. Harmouch
Credential
M.D.
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License numbers
R9495 TX
307695 LA
Self-reported in NPPES; status is on the state search
Practice location
600 N Kobayashi Ste 213, Webster, TX 77598
Phone
(281) 332-3909
Enumerated
Mar 27, 2013
Record last updated
Jan 20, 2026
Fax
(281) 336-1616
Medicare enrollment
Enrolled (PECOS I20200413000850); accepts Medicare assignment
Medical or professional school
Northeastern Ohio University College Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest colon & rectal surgery physician records → All 209 in Texas → Look up another NPI →

Also registered at 600 N Kobayashi Ste 213

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sanjeeda Jabeen, MDInternal Medicine Physician1679936140
  2. Zeid Karadsheh, M.D.Gastroenterology Physician1114163979

Verify Maamoun A. Harmouch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R9495    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

81% more Medicare Part D claims than the average colon & rectal surgery physician in 2024

347 Medicare Part D claims for 127 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 95 claims were for opioids.

  1. Maamoun Harmouch347
  2. Specialty average192

Most prescribed

  1. Tramadol Hcl88 claims
  2. Celecoxib49 claims
  3. Gabapentin35 claims
  4. Metronidazole33 claims
  5. Neomycin Sulfate30 claims
  6. Methocarbamol21 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $22,058.04

41 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maamoun Harmouch$22,058
  2. Specialty average$3,468

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Cls Health PLLCWebster, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maamoun A. Harmouch among 209 colon & rectal surgery physician records in Texas

Maamoun A. Harmouch, M.D. is one of 209 colon & rectal surgery physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.

  • NPI issued2013 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated2013 · median 2004 among the 174 with a school on file
  • Record last updated2026 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Colon & Rectal Surgery Physician providers in Texas

There are 209 colon & rectal surgery physician records in Texas.

All 209 in Texas → Every provider in Webster → Colon & Rectal Surgery Physician nationwide →

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. Mohummed Khani, M.DWebster, TX 775981508022740
  2. Marcus Aquino, MDSeabrook, TX 775861043203128
  3. Antonio Villamor, M.D.Pearland, TX 775841508220427
  4. Anthony D'Andrea, MDGalveston, TX 775551497149637
  5. Pamela Daher, MDGalveston, TX 775551588083984
  6. Christina Warner, MDHouston, TX 775211891112736
  7. Woihwan Kim, MDKaty, TX 774941427589845
  8. Lucrecia Sta Ana, MDKaty, TX 774941760633176

Common questions

What is Maamoun A. Harmouch, M.D.'s NPI number?

Maamoun A. Harmouch, M.D.'s National Provider Identifier (NPI) is 1497098552, issued on Mar 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Maamoun A. Harmouch, M.D. located?

The NPPES record lists a practice address at 600 N Kobayashi Ste 213, Webster, TX, 77598. Phone: (281) 332-3909. Providers update this record themselves, so call before visiting.

How can I verify Maamoun A. Harmouch, M.D.'s license?

NPPES lists Texas license number R9495, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maamoun A. Harmouch, M.D. prescribe under Medicare Part D?

In 2024, Maamoun A. Harmouch, M.D. had 347 Medicare Part D claims for 127 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.