GASTROENTEROLOGY DIAGNOSTIC CLINIC,
NPI 1538158563
Internal Medicine - Gastroenterology in Pasadena, TX
About Gastroenterology Diagnostic Clinic, NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GASTROENTEROLOGY DIAGNOSTIC CLINIC, (NPI 1538158563) is a healthcare organization registered as a gastroenterology in Pasadena, Texas and active in the NPI registry since October 2005. The organization holds an CLIA Accreditation certificate valid through June 15, 2027 and lists Maurice S Haddad, Owner/physician, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gastroenterology Diagnostic Clinic, is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Gastroenterology Diagnostic Clinic,, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.
Clinicians, nearest first (2)
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 Accreditation 45D2184712
Gastroenterology Diagnostic Clinic, PA · Pasadena, TXFrequently 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 Gastroenterology Diagnostic Clinic,'s NPI number?
The NPI number for Gastroenterology Diagnostic Clinic, is 1538158563. It was assigned to this organization in the NPPES registry on October 21, 2005.
Where is Gastroenterology Diagnostic Clinic, located?
Gastroenterology Diagnostic Clinic, is located at 5050 Crenshaw Rd #200, Pasadena, TX 77505. The listed phone number is (281) 998-2488.
What is Gastroenterology Diagnostic Clinic,'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Gastroenterology Diagnostic Clinic, enrolled in Medicare?
Yes. Gastroenterology Diagnostic Clinic, is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Gastroenterology Diagnostic Clinic,?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Gastroenterology Diagnostic Clinic,, in Gastroenterology and Nurse Practitioner. 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. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Gastroenterology Diagnostic Clinic, hold a CLIA laboratory certificate?
Yes. A Certificate of Accreditation (number 45D2184712) is associated with this NPI, valid through June 15, 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 Gastroenterology Diagnostic Clinic, was last updated on October 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Gastroenterology Diagnostic Clinic, · NPI 1538158563
Gastroenterology organization in Pasadena, Texas. Organization record, active in the CMS NPPES registry since October 21, 2005.
## Identity
- **NPI:** 1538158563 (Entity type: Organization)
- **Enumerated:** October 21, 2005
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Maurice Haddad, OWNER/PHYSICIAN
## Practice location
- **Address:** 5050 CRENSHAW RD, #200, Pasadena, TX 77505-3139
- **Phone:** (281) 998-2488 · **Fax:** (281) 998-2482
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (1), Nurse Practitioner (1); 1 practice at this address and 2 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 15, 2012
- **Other identifiers:** Medicaid 094050401 (TX); Medicare PIN 00U25B (TX)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1538158563) · Data from the CMS NPPES public registry.