ISLAND VIEW GASTROENTEROLOGY ASSOCIATES
NPI 1386701787
Internal Medicine - Gastroenterology in Ventura, CA
About Island View Gastroenterology Associates NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISLAND VIEW GASTROENTEROLOGY ASSOCIATES (NPI 1386701787) is a healthcare organization registered as a gastroenterology in Ventura, California and active in the NPI registry since January 2007. The organization holds a CLIA Certificate of Compliance certificate valid through March 19, 2027 and lists Dawn M Izquierdo, Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 2
Other Identifiers 9
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)
Island View Gastroenterology Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
11Medicare enrollment records show 11 clinicians reassign Medicare billing to Island View Gastroenterology Associates, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 3
Clinicians, nearest first (11)
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 05D0864536
Island View Gastroenterology Associates · Ventura, CAFrequently 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 Island View Gastroenterology Assoc.'s NPI number?
The NPI number for Island View Gastroenterology Assoc. is 1386701787. It was assigned to this organization in the NPPES registry on January 3, 2007. The provider is doing business as Island View Gastroenterology Associates. The provider was formerly known as Covington Menz Lyche & Lin Medical Gp.
Where is Island View Gastroenterology Assoc. located?
Island View Gastroenterology Assoc. is located at 168 N Brent St Ste 404, Ventura, CA 93003. The listed phone number is (805) 641-6525.
What is Island View Gastroenterology Assoc.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Island View Gastroenterology Assoc. enrolled in Medicare?
Yes. Island View Gastroenterology Assoc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Island View Gastroenterology Assoc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 3 Medicare specialties reassign their Medicare billing to Island View Gastroenterology Assoc.. 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. The largest specialties are Gastroenterology (9), Nurse Practitioner (1) and Pathology (1). Of these, 5 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Island View Gastroenterology Assoc. hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 05D0864536) is associated with this NPI, valid through March 19, 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 Island View Gastroenterology Assoc. was last updated on August 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Island View Gastroenterology Associates · NPI 1386701787
Gastroenterology organization in Ventura, California. Organization record, active in the CMS NPPES registry since January 3, 2007.
## Identity
- **NPI:** 1386701787 (Entity type: Organization)
- **Enumerated:** January 3, 2007
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Legal business name:** Island View Gastroenterology Assoc.
- **Also known as:** COVINGTON MENZ LYCHE & LIN MEDICAL GP (Former Legal Business Name)
- **Organization subpart:** No
- **Authorized official:** Dawn Izquierdo, MANAGER
## Practice location
- **Address:** 168 N BRENT ST STE 404, Ventura, CA 93003
- **Phone:** (805) 641-6525 · **Fax:** (805) 641-6530
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 11 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (9), Nurse Practitioner (1), Pathology (1); 5 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 20, 2021
- **Other identifiers:** Other 1386701787 (CA); Medicaid WG232764B (CA); Other 1386701787 (CA); and 6 more
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1386701787) · Data from the CMS NPPES public registry.