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CONSTANT K.S. CHAN M.D. INC.
NPI 1225347438
Clinic/Center - Primary Care in Lynwood, CA

Active since October 05, 2010CLIA 05D0715103 · Waiver
10007 STATE ST, LYNWOOD, CA 90262(323) 566-3157(323) 566-2676 Get Directions Write a Review

NPPES record last updated: November 21, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Constant K.s. Chan M.d. Inc. NPPES

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

CONSTANT K.S. CHAN M.D. INC. (NPI 1225347438) is a healthcare organization registered as a primary care in Lynwood, California and active in the NPI registry since October 2010. The organization holds a CLIA Waiver certificate valid through August 31, 2028 and lists Constant K.s. Chan, President, as its authorized official.

NPPES Registry Identity

NPI1225347438
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameCONSTANT K.S. CHAN M.D. INC.
Location Address10007 STATE STLynwood, CA 90262-1514
Mailing Address10007 State StLynwood, CA 90262-1514 · (323) 566-3157 · Fax (323) 566-2676
Phone(323) 566-3157
Fax(323) 566-2676
Organization SubpartNo
Authorized OfficialConstant K.s. ChanPresident · (323) 566-3157
Enumeration DateOctober 5, 2010
Last NPPES UpdateNovember 21, 2012
✔ NPI 1225347438 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
License✔ Licensed in CA · A40174
10007 STATE ST, Lynwood, CA 90262
Open in Google Maps ↗

Other Identifiers 3

Medicare PINA40174CA
Medicaid00A401740CA
Medicare UPINA85400CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Constant K.s. Chan 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 Constant K.S. Chan M.D. Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Constant Chan, M.D.
General Practice
NPI 1730195645
10007 STATE ST
Lynwood, CA 90262
(323) 566-3157
✔ 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 05D0715103

Constant K S Chan MD Inc · Lynwood, CA
Active · expires Aug 31, 2028
CLIA Number05D0715103
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorConstant K. Chan
Laboratory Phone(323) 566-3157
Laboratory LocationConstant K S Chan MD Inc10007 State St, Lynwood, CA 90262
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 Constant K.S. Chan M.D. Inc.'s NPI number?

The NPI number for Constant K.S. Chan M.D. Inc. is 1225347438. It was assigned to this organization in the NPPES registry on October 5, 2010.

Where is Constant K.S. Chan M.D. Inc. located?

Constant K.S. Chan M.D. Inc. is located at 10007 State St, Lynwood, CA 90262. The listed phone number is (323) 566-3157.

What is Constant K.S. Chan M.D. Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Constant K.S. Chan M.D. Inc. enrolled in Medicare?

Yes. Constant K.S. Chan M.D. Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Constant K.S. Chan M.D. Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Practice) reassigns their Medicare billing to Constant K.S. Chan 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 Constant K.S. Chan M.D. Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0715103) is associated with this NPI, valid through August 31, 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 Constant K.S. Chan M.D. Inc. was last updated on November 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.