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ANNIE SHU & MICHAEL CHU
NPI 1740454735
Internal Medicine in Arcadia, CA

Active since April 22, 2008
632 W DUARTE RD STE 170, ARCADIA, CA 91007(626) 445-1278 Get Directions Write a Review

NPPES record last updated: February 19, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Annie Shu & Michael Chu NPPES

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

ANNIE SHU & MICHAEL CHU (NPI 1740454735) is a healthcare organization registered as an internal medicine in Arcadia, California and active in the NPI registry since April 2008. The organization lists Annie Shu, Partner, as its authorized official.

NPPES Registry Identity

NPI1740454735
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameANNIE SHU & MICHAEL CHU
Location Address632 W DUARTE RD STE 170Arcadia, CA 91007-7610
Mailing Address632 W Duarte Rd Ste 170Arcadia, CA 91007-7610 · (626) 445-1278
Phone(626) 445-1278
Organization SubpartNo
Authorized OfficialAnnie ShuPartner · (626) 823-8928
Enumeration DateApril 22, 2008
Last NPPES UpdateFebruary 19, 2020
✔ NPI 1740454735 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X
632 W DUARTE RD STE 170, Arcadia, CA 91007
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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)

Annie Shu & Michael Chu is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Annie Shu & Michael Chu, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Annie Shu, M.D.
Internal Medicine
NPI 1518058742
632 W DUARTE RD STE 170
Arcadia, CA 91007
(626) 445-1278
✔ PECOSSame address
Michael Chu, M.D.
Gastroenterology
NPI 1952491805
632 W DUARTE RD STE 170
Arcadia, CA 91007
(626) 445-1278
✔ PECOSSame 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 Annie Shu & Michael Chu's NPI number?

The NPI number for Annie Shu & Michael Chu is 1740454735. It was assigned to this organization in the NPPES registry on April 22, 2008.

Where is Annie Shu & Michael Chu located?

Annie Shu & Michael Chu is located at 632 W Duarte Rd Ste 170, Arcadia, CA 91007. The listed phone number is (626) 445-1278.

What is Annie Shu & Michael Chu's specialty?

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

Is Annie Shu & Michael Chu enrolled in Medicare?

Yes. Annie Shu & Michael Chu is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Annie Shu & Michael Chu?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Annie Shu & Michael Chu, in Gastroenterology and Internal Medicine. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Annie Shu & Michael Chu was last updated on February 19, 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.