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JAMES Y LIN, M.D. INC.
NPI 1821288952
Internal Medicine in Arcadia, CA

Active since July 25, 2007CLIA 05D0973922 · Waiver
224 S SANTA ANITA AVE, ARCADIA, CA 91006(626) 447-5800(626) 447-5886 Get Directions Write a Review

NPPES record last updated: December 8, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About James Y Lin, M.d. Inc. NPPES

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

JAMES Y LIN, M.D. INC. (NPI 1821288952) is a healthcare organization registered as an internal medicine in Arcadia, California and active in the NPI registry since July 2007. The organization holds a CLIA Waiver certificate valid through May 22, 2028 and lists James Y Lin, President, as its authorized official.

NPPES Registry Identity

NPI1821288952
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameJAMES Y LIN, M.D. INC.
Location Address224 S SANTA ANITA AVEArcadia, CA 91006-3521
Mailing Address224 S Santa Anita AveArcadia, CA 91006-3521 · (626) 447-5800 · Fax (626) 447-5886
Phone(626) 447-5800
Fax(626) 447-5886
Organization SubpartNo
Authorized OfficialJames Y LinPresident · (626) 447-5800
Enumeration DateJuly 25, 2007
Last NPPES UpdateDecember 8, 2010
✔ NPI 1821288952 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G69813
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
224 S SANTA ANITA AVE, Arcadia, CA 91006
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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)

James Y Lin, 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 James Y Lin, M.D. Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

James Lin, M.D.
Internal Medicine
NPI 1881789600
224 S SANTA ANITA AVE
Arcadia, CA 91006
(626) 447-5800
✔ 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.

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 Waiver 05D0973922

James Y Lin MD · Arcadia, CA
Active · expires May 22, 2028
CLIA Number05D0973922
Laboratory TypePhysician Office
Certificate Effective DateMay 23, 2026
Certificate Expiration DateMay 22, 2028
Laboratory DirectorJames Y. Lin MD
Laboratory Phone(626) 447-5800
Laboratory LocationJames Y Lin MD224 S Santa Anita Ave, Arcadia, CA 91006
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

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 James Y Lin, M.D. Inc.'s NPI number?

The NPI number for James Y Lin, M.D. Inc. is 1821288952. It was assigned to this organization in the NPPES registry on July 25, 2007.

Where is James Y Lin, M.D. Inc. located?

James Y Lin, M.D. Inc. is located at 224 S Santa Anita Ave, Arcadia, CA 91006. The listed phone number is (626) 447-5800.

What is James Y Lin, M.D. Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is James Y Lin, M.D. Inc. enrolled in Medicare?

Yes. James Y Lin, M.D. Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through James Y Lin, M.D. Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to James Y Lin, 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.

Does James Y Lin, M.D. Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0973922) is associated with this NPI, valid through May 22, 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 James Y Lin, M.D. Inc. was last updated on December 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.