BISSONNET INTERNAL MEDICINE PA
NPI 1902005473
Internal Medicine in Houston, TX

Q: What is Bissonnet Internal Medicine PA's NPI number?

The NPI number for Bissonnet Internal Medicine PA is 1902005473. It was assigned to this organization in the NPPES registry on July 16, 2007.

Q: What is Bissonnet Internal Medicine PA's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since July 16, 2007CLIA 45D0994622 · Waiver

7737 SOUTHWEST FWY, SUITE 620, HOUSTON, TX 77074(713) 484-9100(713) 484-7558 Get Directions Write a Review

NPPES record last updated: July 16, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Bissonnet Internal Medicine Pa NPPES

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

BISSONNET INTERNAL MEDICINE PA (NPI 1902005473) is a healthcare organization registered as an internal medicine in Houston, Texas and active in the NPI registry since July 2007. The organization holds a CLIA Waiver certificate valid through September 17, 2027 and lists Obiajulu Cletus Ezenwabachili, Owner, as its authorized official.

NPPES Registry Identity

NPI1902005473

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameBISSONNET INTERNAL MEDICINE PA

Location Address7737 SOUTHWEST FWY, SUITE 620Houston, TX 77074-1807

Mailing Address7737 Southwest Fwy, Suite 620Houston, TX 77074-1807 · (713) 484-9100 · Fax (713) 484-7558

Phone(713) 484-9100

Fax(713) 484-7558

Organization SubpartNo

Authorized OfficialObiajulu Cletus EzenwabachiliOwner · (713) 484-9100

Enumeration DateJuly 16, 2007

✔ NPI 1902005473 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in TX · L0158

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

7737 SOUTHWEST FWY, Houston, TX 77074

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Other Identifiers 1

Medicare PIN00908W

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Bissonnet Internal Medicine Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateTexasEnrollment IDO20040724000363Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Bissonnet Internal Medicine PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Obiajulu Ezenwabachili, M.D.

Internal Medicine

NPI 1518945674

7737 SOUTHWEST FWY STE 620
Houston, TX 77074

(713) 484-9100

✔ PECOS✔ Accepts MedicareSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 45D0994622

Bissonnet Internal Medicine, PA · Houston, TX

Active · expires Sep 17, 2027

CLIA Number45D0994622

Laboratory TypePhysician Office

Certificate Effective DateSeptember 18, 2025

Certificate Expiration DateSeptember 17, 2027

Laboratory DirectorObiajulu Ezenwabachili

Laboratory Phone(713) 484-9100

Laboratory LocationBissonnet Internal Medicine, PA7737 Southwest Fwy Ste 620, Houston, TX 77074

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

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 Bissonnet Internal Medicine PA's NPI number?

The NPI number for Bissonnet Internal Medicine PA is 1902005473. It was assigned to this organization in the NPPES registry on July 16, 2007.

Where is Bissonnet Internal Medicine PA located?

Bissonnet Internal Medicine PA is located at 7737 Southwest Fwy Suite 620, Houston, TX 77074. The listed phone number is (713) 484-9100.

What is Bissonnet Internal Medicine PA's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Bissonnet Internal Medicine PA enrolled in Medicare?

Yes. Bissonnet Internal Medicine PA is registered in the Medicare PECOS enrollment system.

When is Bissonnet Internal Medicine PA's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Bissonnet Internal Medicine PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Bissonnet Internal Medicine PA. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Bissonnet Internal Medicine PA hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D0994622) is associated with this NPI, valid through September 17, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Bissonnet Internal Medicine PA was last updated on July 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.