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C. GEORGE LAI, M.D., INC.
NPI 1023452620
Internal Medicine - Gastroenterology in Monterey Park, CA

Active since April 25, 2013
500 N GARFIELD AVE, #100, MONTEREY PARK, CA 91754(626) 280-5009(626) 280-5232 Get Directions Write a Review

NPPES record last updated: August 17, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About C. George Lai, M.d., Inc. NPPES

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

C. GEORGE LAI, M.D., INC. (NPI 1023452620) is a healthcare organization registered as a gastroenterology in Monterey Park, California and active in the NPI registry since April 2013. The organization lists Chia-chi George Lai, Doctor, as its authorized official.

NPPES Registry Identity

NPI1023452620
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameC. GEORGE LAI, M.D., INC.
Location Address500 N GARFIELD AVE, #100Monterey Park, CA 91754-1242
Mailing Address500 N Garfield Ave, #100Monterey Park, CA 91754-1242 · (626) 280-5009 · Fax (626) 280-5232
Phone(626) 280-5009
Fax(626) 280-5232
Organization SubpartNo
Authorized OfficialChia-chi George LaiDoctor · (626) 280-5009
Enumeration DateApril 25, 2013
Last NPPES UpdateAugust 17, 2020
NPPES CertifiedAugust 17, 2020
✔ NPI 1023452620 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.
500 N GARFIELD AVE, Monterey Park, CA 91754
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

C. George Lai, M.d., Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to C. George Lai, M.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Chi Lai, M.D.
Gastroenterology
NPI 1043238413
500 N GARFIELD AVE 100
Monterey Park, CA 91754
(626) 280-5009
✔ PECOS✔ Accepts MedicareSame address

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 C. George Lai, M.D., Inc.'s NPI number?

The NPI number for C. George Lai, M.D., Inc. is 1023452620. It was assigned to this organization in the NPPES registry on April 25, 2013.

Where is C. George Lai, M.D., Inc. located?

C. George Lai, M.D., Inc. is located at 500 N Garfield Ave #100, Monterey Park, CA 91754. The listed phone number is (626) 280-5009.

What is C. George Lai, M.D., Inc.'s specialty?

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

Is C. George Lai, M.D., Inc. enrolled in Medicare?

Yes. C. George Lai, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through C. George Lai, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Gastroenterology) reassigns their Medicare billing to C. George Lai, M.D., Inc.. 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.

When was this NPI record last updated?

The NPPES record for C. George Lai, M.D., Inc. was last updated on August 17, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.