MICHELLE L CHAN A PROFESSIONAL CORPORATION
NPI 1427361146
Internal Medicine in San Gabriel, CA

Q: What is Michelle L Chan A Professional Corporation's specialty?

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

Active since July 22, 2010

1726 NEW AVE, SAN GABRIEL, CA 91776(626) 943-0780(626) 943-0200 Get Directions Write a Review

NPPES record last updated: September 14, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Michelle L Chan A Professional Corporation NPPES

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

MICHELLE L CHAN A PROFESSIONAL CORPORATION (NPI 1427361146) is a healthcare organization registered as an internal medicine in San Gabriel, California and active in the NPI registry since July 2010. The organization lists Michelle L Chan, President, as its authorized official.

NPPES Registry Identity

NPI1427361146

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameMICHELLE L CHAN A PROFESSIONAL CORPORATION

Location Address1726 NEW AVESan Gabriel, CA 91776-3734

Mailing Address1726 New AveSan Gabriel, CA 91776-3734 · (626) 943-0780 · Fax (626) 943-0200

Phone(626) 943-0780

Fax(626) 943-0200

Organization SubpartNo

Authorized OfficialMichelle L ChanPresident · (626) 943-0780

Enumeration DateJuly 22, 2010

Last NPPES UpdateSeptember 14, 2010

✔ NPI 1427361146 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 · A54786

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.

1726 NEW AVE, San Gabriel, CA 91776

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Other Identifiers 2

Medicaid00A547860CA

Medicare UPING71002CA

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)

Michelle L Chan A Professional Corporation 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 Michelle L Chan A Professional Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Michelle Chan, M.D.

Internal Medicine

NPI 1043326283

1726 NEW AVE
San Gabriel, CA 91776

(626) 943-0780

✔ 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 Michelle L Chan A Professional Corporation's NPI number?

The NPI number for Michelle L Chan A Professional Corporation is 1427361146. It was assigned to this organization in the NPPES registry on July 22, 2010.

Where is Michelle L Chan A Professional Corporation located?

Michelle L Chan A Professional Corporation is located at 1726 New Ave, San Gabriel, CA 91776. The listed phone number is (626) 943-0780.

What is Michelle L Chan A Professional Corporation's specialty?

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

Is Michelle L Chan A Professional Corporation enrolled in Medicare?

Yes. Michelle L Chan A Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Michelle L Chan A Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Michelle L Chan A Professional Corporation. 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 Michelle L Chan A Professional Corporation was last updated on September 14, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.