SAN DIEGO ADVANCED GASTROENTEROLOGY ASSOCIATES
NPI 1164187076
Internal Medicine - Gastroenterology in La Mesa, CA

Q: What is San Diego Advanced Gastroenterology Associates's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since November 04, 2021CLIA 05D2344496 · Certificate of Compliance

5565 GROSSMONT CENTER DR # 1-112, LA MESA, CA 91942(619) 303-9000(619) 303-9999 Get Directions Write a Review

NPPES record last updated: July 25, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 25, 2023, May 17, 2023, Apr 11, 2023 and 2 more (5 updates tracked since 2021).

On this page

About San Diego Advanced Gastroenterology Associates NPPES

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

SAN DIEGO ADVANCED GASTROENTEROLOGY ASSOCIATES (NPI 1164187076) is a healthcare organization registered as a gastroenterology in La Mesa, California and active in the NPI registry since November 2021. The organization holds a CLIA Certificate of Compliance certificate valid through May 21, 2028 and lists Mohammed Saadi, Owner, as its authorized official.

NPPES Registry Identity

NPI1164187076

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameSAN DIEGO ADVANCED GASTROENTEROLOGY ASSOCIATES

Location Address5565 GROSSMONT CENTER DR # 1-112La Mesa, CA 91942-3020

Mailing Address5565 Grossmont Center Dr # 1-112La Mesa, CA 91942-3020 · (619) 303-9000 · Fax (619) 303-9999

Phone(619) 303-9000

Fax(619) 303-9999

Organization SubpartNo

Authorized OfficialMohammed SaadiOwner · (915) 407-9923

Enumeration DateNovember 4, 2021

Last NPPES UpdateJuly 25, 20235 updates tracked since enumeration

NPPES CertifiedMay 17, 2023

✔ NPI 1164187076 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

5565 GROSSMONT CENTER DR # 1-112, La Mesa, CA 91942

Open in Google Maps ↗

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

San Diego Advanced Gastroenterology Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to San Diego Advanced Gastroenterology Associates, 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)

Mohammed Saadi, M.D.

Gastroenterology

NPI 1245591387

5565 GROSSMONT CENTER DR # 1-112
La Mesa, CA 91942

(619) 303-9000

✔ PECOS✔ Accepts MedicareSame address

Faizi Hai, MD

Gastroenterology

NPI 1639523228

4060 4TH AVE STE 240
San Diego, CA 92103

(619) 291-6064

✔ PECOS✔ Accepts Medicare9.2 mi

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 Compliance 05D2344496

San Diego Advanced Gastroenterology Associates · La Mesa, CA

Active · expires May 21, 2028

CLIA Number05D2344496

Laboratory TypeIndependent

Certificate Effective DateMay 22, 2026

Certificate Expiration DateMay 21, 2028

Laboratory DirectorTao Zhang

Laboratory Phone(619) 303-9000

Laboratory LocationSan Diego Advanced Gastroenterology Associates9001 Grossmont Blvd Ste 604, La Mesa, CA 91941

CLIA data matches this NPI record on: Name Phone

This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 San Diego Advanced Gastroenterology Associates's NPI number?

The NPI number for San Diego Advanced Gastroenterology Associates is 1164187076. It was assigned to this organization in the NPPES registry on November 4, 2021.

Where is San Diego Advanced Gastroenterology Associates located?

San Diego Advanced Gastroenterology Associates is located at 5565 Grossmont Center Dr # 1-112, La Mesa, CA 91942. The listed phone number is (619) 303-9000.

What is San Diego Advanced Gastroenterology Associates's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is San Diego Advanced Gastroenterology Associates enrolled in Medicare?

Yes. San Diego Advanced Gastroenterology Associates is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through San Diego Advanced Gastroenterology Associates?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Gastroenterology, reassign their Medicare billing to San Diego Advanced Gastroenterology Associates. 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 San Diego Advanced Gastroenterology Associates hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 05D2344496) is associated with this NPI, valid through May 21, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for San Diego Advanced Gastroenterology Associates was last updated on July 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.