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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. SAMIR OUAIS MD
NPI 1861559213
Internal Medicine - Endocrinology, Diabetes & Metabolism in Cleveland, TX

Active since January 03, 2007PECOS EnrolledAccepts Medicare Assignment
203 N COLLEGE ST, #1001, CLEVELAND, TX 77327(281) 592-8088(713) 653-1646 Get Directions Write a Review

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 2, 2026, Feb 3, 2026, Sep 11, 2025 (3 updates tracked since 2025).

About Mr. Samir Ouais Md NPPES

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

MR. SAMIR OUAIS MD (NPI 1861559213) is an individual endocrinology, diabetes & metabolism provider in Cleveland, Texas, licensed in Texas (H3277) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Northeast Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1861559213
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameMR. SAMIR OUAISCredential: MD
Location Address203 N COLLEGE ST, #1001Cleveland, TX 77327
Mailing AddressPo Box 58538Webster, TX 77598-8538
Phone(281) 592-8088
Fax(713) 653-1646
Sole ProprietorNo
Medical School CMSOtherGraduated 1965
Enumeration DateJanuary 3, 2007
Last NPPES UpdateSeptember 2, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 2, 2026
✔ NPI 1861559213 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in TX · H3277
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License H3277 (TX)
203 N COLLEGE ST, Cleveland, TX 77327
Open in Google Maps ↗

Secondary Practice Locations 3

Location 14615 Southwest Fwy Ste 900Houston, TX 77027-7191 · Phone (346) 613-1423
Location 24615 Southwest Fwy Ste 1000Houston, TX 77027-7108 · Phone (281) 407-6943
Location 3500 N Kobayashi Ste CWebster, TX 77598-4722 · Phone (281) 816-3092

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Samir Ouais Md 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 ID6507048915
PECOS Enrollment IDI20110307000531
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Samir Ouais reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Camil I Kreit MD PA
0.4 mi
Family Medicine
403 E DALLAS ST
Cleveland, TX 77327
  • Reassigned Medicare billing, Texas enrollment
  • 6 clinicians in this Medicare group
NPI 1134348659 (713) 659-9533
Cls Health PLLC
56 mi
Pulmonary Disease
500 N KOBAYASHI STE A
Webster, TX 77598
  • Reassigned Medicare billing, Texas enrollment
  • 275 clinicians in this Medicare group
NPI 1750305355 (281) 724-1860

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

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 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.
53 services32 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.
39 services29 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.
14 services14 patients

Hospital Affiliations CMS Care Compare

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

Memorial Hermann Northeast Hospital

Acute Care Hospitals · Humble, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450684
Location18951 Memorial NorthHumble, TX 77338 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77327 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
9 suppliers18 claims84 services$6.68 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
6 suppliers64 claims64 services$185.01 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Samir Ouais's NPI number?

The NPI number for Samir Ouais is 1861559213. It was assigned to this individual provider in the NPPES registry on January 3, 2007.

Where is Samir Ouais located?

Samir Ouais practices at 203 N College St #1001, Cleveland, TX 77327. The listed phone number is (281) 592-8088.

What is Samir Ouais's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Samir Ouais enrolled in Medicare?

Yes. Samir Ouais 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.

Which organizations bill Medicare for Samir Ouais's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Samir Ouais reassigns Medicare benefits to 2 organizations: Camil I Kreit MD PA (Cleveland, TX) and Cls Health PLLC (Webster, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Samir Ouais's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Samir Ouais 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 6 other insurers list Samir Ouais 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 Samir Ouais affiliated with any hospitals?

According to CMS data, Samir Ouais is affiliated with Memorial Hermann Northeast Hospital.

When was this NPI record last updated?

The NPPES record for Samir Ouais was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.