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ADVANCED GASTROENTEROLOGY, PLLC
NPI 1003992090
Internal Medicine - Gastroenterology in Vancouver, WA

Active since October 31, 2006
3250 SE 164TH AVE STE 205, VANCOUVER, WA 98683(360) 946-4313(360) 576-1133 Get Directions Write a Review

NPPES record last updated: November 7, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Advanced Gastroenterology, Pllc NPPES

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

ADVANCED GASTROENTEROLOGY, PLLC (NPI 1003992090) is a healthcare organization registered as a gastroenterology in Vancouver, Washington and active in the NPI registry since October 2006. The organization lists Samuel K Sim, Partner, as its authorized official.

NPPES Registry Identity

NPI1003992090
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameADVANCED GASTROENTEROLOGY, PLLC
Location Address3250 SE 164TH AVE STE 205Vancouver, WA 98683-9313
Mailing Address3250 Se 164th Ave Ste 205Vancouver, WA 98683-9313 · (360) 946-4313 · Fax (360) 314-2067
Phone(360) 946-4313
Fax(360) 576-1133
Organization SubpartNo
Authorized OfficialSamuel K SimPartner · (360) 946-4313
Enumeration DateOctober 31, 2006
Last NPPES UpdateNovember 7, 2024
NPPES CertifiedNovember 7, 2024
✔ NPI 1003992090 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in WA · MD00042129
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.
3250 SE 164TH AVE STE 205, Vancouver, WA 98683
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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Regence BlueCross BlueShield of Oregon.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Advanced Gastroenterology, PLLC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (3)

Vikas Garg, MD
Gastroenterology
NPI 1174775951
9900 SE SUNNYSIDE RD
Clackamas, OR 97015
(800) 813-2000
✔ PECOS✔ Accepts Medicare12 mi
Frank Yeh, MD
Gastroenterology
NPI 1710102959
9900 SE SUNNYSIDE RD
Clackamas, OR 97015
(800) 813-2000
✔ PECOS✔ Accepts Medicare12 mi
Samuel Sim, MD
Gastroenterology
NPI 1275633844
1 MEDICAL PARK BLVD
Bristol, TN 37620
(423) 844-1121
✔ PECOS✔ Accepts Medicare2,166 mi

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

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 Advanced Gastroenterology, PLLC's NPI number?

The NPI number for Advanced Gastroenterology, PLLC is 1003992090. It was assigned to this organization in the NPPES registry on October 31, 2006.

Where is Advanced Gastroenterology, PLLC located?

Advanced Gastroenterology, PLLC is located at 3250 SE 164th Ave Ste 205, Vancouver, WA 98683. The listed phone number is (360) 946-4313.

What is Advanced Gastroenterology, PLLC's specialty?

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

Is Advanced Gastroenterology, PLLC enrolled in Medicare?

Yes. Advanced Gastroenterology, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Advanced Gastroenterology, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Gastroenterology, reassign their Medicare billing to Advanced Gastroenterology, PLLC. 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.

What insurance does Advanced Gastroenterology, PLLC accept?

Health plans from BridgeSpan Health Company and Regence BlueCross BlueShield of Oregon list Advanced Gastroenterology, PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Advanced Gastroenterology, PLLC was last updated on November 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.