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OC GASTROCARE
NPI 1881032282
Internal Medicine - Gastroenterology in Anaheim, CA

Active since June 06, 2013CLIA 05D2330326 · Certificate of Compliance
100 S ANAHEIM BLVD STE 250, ANAHEIM, CA 92805(714) 527-6000(714) 527-2371 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 20, 2026, Jan 7, 2026, Dec 12, 2025 and 8 more (11 updates tracked since 2024).

About Oc Gastrocare NPPES

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

OC GASTROCARE (NPI 1881032282) is a healthcare organization registered as a gastroenterology in Anaheim, California and active in the NPI registry since June 2013. The organization holds a CLIA Certificate of Compliance certificate valid through June 23, 2028, maintains a secondary practice location in Brea, and lists Dick M Yip, Physician, as its authorized official.

NPPES Registry Identity

NPI1881032282
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameOC GASTROCARE
Location Address100 S ANAHEIM BLVD STE 250Anaheim, CA 92805-3872
Mailing Address100 S Anaheim Blvd Ste 250Anaheim, CA 92805-3872 · (714) 527-6000 · Fax (714) 527-2371
Phone(714) 527-6000
Fax(714) 527-2371
Organization SubpartNo
Authorized OfficialDick M YipPhysician · (714) 527-6000
Enumeration DateJune 6, 2013
Last NPPES UpdateJuly 20, 202611 updates tracked since enumeration
NPPES CertifiedJuly 20, 2026
✔ NPI 1881032282 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.
100 S ANAHEIM BLVD STE 250, Anaheim, CA 92805
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Secondary Practice Location 1

Location 1955 W Imperial Hwy Ste 100Brea, CA 92821-3814 · Phone (714) 527-6000 · Fax (714) 527-2371

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)

Oc Gastrocare is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Oc Gastrocare, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Amit Bhanvadia, M.D.
Gastroenterology
NPI 1861751083
100 S ANAHEIM BLVD STE 250
Anaheim, CA 92805
(714) 527-6000
✔ PECOS✔ Accepts MedicareSame address
Erica St Lawrence, MD
Gastroenterology
NPI 1922662998
100 S ANAHEIM BLVD STE 250
Anaheim, CA 92805
(714) 527-6000
✔ PECOS✔ Accepts MedicareSame address
Jason Yip, M.D.
Gastroenterology
NPI 1487862066
100 S ANAHEIM BLVD STE 250
Anaheim, CA 92805
(714) 527-6000
✔ PECOS✔ Accepts MedicareSame address
Rooba Wardeh, M.D
Pathology
NPI 1831388206
101 THE CITY DR S
Orange, CA 92868
(714) 456-6141
✔ PECOS✔ Accepts Medicare3.5 mi
Dick Yip, MD
Gastroenterology
NPI 1851374631
408 S BEACH BLVD
Anaheim, CA 92804
(714) 527-6000
✔ PECOS✔ Accepts Medicare4.6 mi
Thomas Konturek, M.D.
Gastroenterology
NPI 1942651096
408 S BEACH BLVD STE 211
Anaheim, CA 92804
(714) 527-6000
✔ PECOS✔ Accepts Medicare4.6 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 05D2330326

Oc Gastrocare · Anaheim, CA
Active · expires Jun 23, 2028
CLIA Number05D2330326
Laboratory TypeIndependent
Certificate Effective DateJune 24, 2026
Certificate Expiration DateJune 23, 2028
Laboratory DirectorRana Richeh
Laboratory Phone(714) 527-8000
Laboratory LocationOc Gastrocare100 Anaheim Blvd Ste 250, Anaheim, CA 92805
CLIA data matches this NPI record on: Name
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 Oc Gastrocare's NPI number?

The NPI number for Oc Gastrocare is 1881032282. It was assigned to this organization in the NPPES registry on June 6, 2013.

Where is Oc Gastrocare located?

Oc Gastrocare is located at 100 S Anaheim Blvd Ste 250, Anaheim, CA 92805. The listed phone number is (714) 527-6000.

What is Oc Gastrocare's specialty?

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

Is Oc Gastrocare enrolled in Medicare?

Yes. Oc Gastrocare is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oc Gastrocare?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 2 Medicare specialties reassign their Medicare billing to Oc Gastrocare. 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 (5) and Pathology (1). Of these, 3 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Oc Gastrocare hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 05D2330326) is associated with this NPI, valid through June 23, 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 Oc Gastrocare was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.