DR. MAAMOUN A HARMOUCH M.D.
NPI 1497098552
Colon & Rectal Surgery in Webster, TX

Q: What is Maamoun Harmouch's NPI number?

The NPI number for Maamoun Harmouch is 1497098552. It was assigned to this individual provider in the NPPES registry on March 27, 2013.

Q: What is Maamoun Harmouch's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Q: When was this NPI record last updated?

The NPPES record for Maamoun Harmouch was last updated on January 20, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since March 27, 2013PECOS EnrolledAccepts Medicare Assignment

600 N KOBAYASHI STE 213, WEBSTER, TX 77598(281) 332-3909(281) 336-1616 Get Directions Write a Review

NPPES record last updated: January 20, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 20, 2026, Jan 8, 2026, Feb 17, 2025 and 5 more (8 updates tracked since 2018).

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About Dr. Maamoun A Harmouch M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MAAMOUN A HARMOUCH M.D. (NPI 1497098552) is an individual colon & rectal surgery provider in Webster, Texas, licensed in Texas (R9495) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1497098552

Entity TypeIndividualMale

Primary Taxonomy208C00000X

Provider Legal NameDR. MAAMOUN A HARMOUCHCredential: M.D.

Location Address600 N KOBAYASHI STE 213Webster, TX 77598-4841

Mailing AddressPo Box 58538Webster, TX 77598-8538 · (281) 332-3909 · Fax (281) 336-1616

Phone(281) 332-3909

Fax(281) 336-1616

Sole ProprietorNo

Medical School CMSNortheastern Ohio University College Of MedicineGraduated 2013

Enumeration DateMarch 27, 2013

Last NPPES UpdateJanuary 20, 20268 updates tracked since enumeration

NPPES CertifiedJanuary 20, 2026

✔ NPI 1497098552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208C00000X

License✔ Licensed in TX · R9495

Definition

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Also ListedSurgeryTaxonomy 208600000X · License 307695 (LA), R9495 (TX)

600 N KOBAYASHI STE 213, Webster, TX 77598

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Secondary Practice Locations 4

Location 1500 N Kobayashi Ste CWebster, TX 77598-4722 · Phone (281) 816-3092

Location 2600 N Kobayashi Ste 110Webster, TX 77598-4841 · Phone (281) 338-1701

Location 34615 Southwest Fwy Ste 1000Houston, TX 77027-7108 · Phone (281) 332-3909

Location 4600 N Kobayashi Ste 309Webster, TX 77598-4841 · Phone (281) 724-8332

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Maamoun A Harmouch M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2668721291

PECOS Enrollment IDI20200413000850

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

72 services51 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

43 services35 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

39 services39 patients

Diagnostic exam of anus using an endoscope 46600

This procedure involves using a thin, flexible instrument called an endoscope to examine the anal area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.

38 services35 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

37 services37 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

33 services33 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

32 services17 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

25 services22 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

25 services25 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

18 services11 patients

Repair of abdomen using abdominal lining graft 49905

This procedure involves repairing a damaged part of your abdomen with a graft, or patch, made from your own abdominal lining. It aims to strengthen the area and promote healing. Rest assured, it's performed by skilled surgeons.

15 services15 patients

Removal of gallbladder using an endoscope 47562

This procedure, known as endoscopic gallbladder removal, involves a surgeon using a special tool called an endoscope to remove your gallbladder through small incisions. It's typically done to treat gallstones and related complications. It's a less invasive method, often leading to quicker recovery.

12 services12 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450358

Location6565 FanninHouston, TX 77030 · Harris County

Emergency services Birthing friendly

Hca Houston Healthcare Clear Lake

Acute Care Hospitals · Webster, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450617

Location500 W Medical Center BlvdWebster, TX 77598 · Harris County

Emergency services Birthing friendly

Houston Methodist Clear Lake Hospital

Acute Care Hospitals · Nassau Bay, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450709

Location18300 Houston Methodist DrNassau Bay, TX 77058 · Harris County

Emergency services Birthing friendly

Houston Physicians' Hospital

Acute Care Hospitals · Webster, TX

OwnershipPhysician

CMS Certification Number670008

Location333 N Texas AvenueWebster, TX 77598 · Harris County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$90.40 typical visit price

range $58.24 – $176.98

Typical copayment $22.60 (range $14.56 – $44.24)

Most-billed visit code 99203

Established Patient

$72.62 typical visit price

range $18.60 – $143.93

Typical copayment $18.15 (range $4.65 – $35.98)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ZEID FAEQ KARADSHEH M.D.

Internal Medicine (Gastroenterology)

600 N KOBAYASHI STE 213
WEBSTER, TX 77598

Harris County (281) 816-3056

MOSAIC CLINIC LLC

Dermatology

600 N KOBAYASHI STE 213
WEBSTER, TX 77598

Harris County (281) 941-5556

SANJEEDA JABEEN MD

Internal Medicine

600 N KOBAYASHI STE 213
WEBSTER, TX 77598

Harris County (281) 724-1862

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maamoun Harmouch's NPI number?

The NPI number for Maamoun Harmouch is 1497098552. It was assigned to this individual provider in the NPPES registry on March 27, 2013.

Where is Maamoun Harmouch located?

Maamoun Harmouch practices at 600 N Kobayashi Ste 213, Webster, TX 77598. The listed phone number is (281) 332-3909.

What is Maamoun Harmouch's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Is Maamoun Harmouch enrolled in Medicare?

Yes. Maamoun Harmouch is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Maamoun Harmouch accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 7 other insurers list Maamoun Harmouch as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Maamoun Harmouch affiliated with any hospitals?

According to CMS data, Maamoun Harmouch is affiliated with Houston Methodist Hospital, Hca Houston Healthcare Clear Lake, Houston Methodist Clear Lake Hospital and Houston Physicians' Hospital.

When was this NPI record last updated?

The NPPES record for Maamoun Harmouch was last updated on January 20, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.