HSU & HSU INTERNAL MEDICINE ASSOCIATES, PA
NPI 1861691891
Internal Medicine in Plano, TX

Q: What is Hsu & Hsu Internal Medicine Associates, PA's specialty?

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

Active since July 11, 2007

400 MAPLELAWN DR STE 101, PLANO, TX 75075(972) 398-3666(972) 398-6667 Get Directions Write a Review

NPPES record last updated: July 11, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Hsu & Hsu Internal Medicine Associates, Pa NPPES

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

HSU & HSU INTERNAL MEDICINE ASSOCIATES, PA (NPI 1861691891) is a healthcare organization registered as an internal medicine in Plano, Texas and active in the NPI registry since July 2007. The organization lists Chung-wei Hsu, Owner, as its authorized official.

NPPES Registry Identity

NPI1861691891

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameHSU & HSU INTERNAL MEDICINE ASSOCIATES, PA

Location Address400 MAPLELAWN DR STE 101Plano, TX 75075-5736

Mailing Address7004 Chandler DrPlano, TX 75024-4807

Phone(972) 398-3666

Fax(972) 398-6667

Organization SubpartNo

Authorized OfficialChung-wei HsuOwner · (817) 565-6381

Enumeration DateJuly 11, 2007

✔ NPI 1861691891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in TX · L7421

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.

400 MAPLELAWN DR STE 101, Plano, TX 75075

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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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hsu & Hsu Internal Medicine Associates, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateTexasEnrollment IDO20080226000185Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Hsu & Hsu Internal Medicine Associates, PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Chung Wei Hsu, DO

Internal Medicine

NPI 1174600381

400 MAPLELAWN CT STE 101
Plano, TX 75075

(817) 565-6381

✔ 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 Hsu & Hsu Internal Medicine Associates, PA's NPI number?

The NPI number for Hsu & Hsu Internal Medicine Associates, PA is 1861691891. It was assigned to this organization in the NPPES registry on July 11, 2007.

Where is Hsu & Hsu Internal Medicine Associates, PA located?

Hsu & Hsu Internal Medicine Associates, PA is located at 400 Maplelawn Dr Ste 101, Plano, TX 75075. The listed phone number is (972) 398-3666.

What is Hsu & Hsu Internal Medicine Associates, PA's specialty?

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

Is Hsu & Hsu Internal Medicine Associates, PA enrolled in Medicare?

Yes. Hsu & Hsu Internal Medicine Associates, PA is registered in the Medicare PECOS enrollment system.

When is Hsu & Hsu Internal Medicine Associates, PA's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Hsu & Hsu Internal Medicine Associates, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Hsu & Hsu Internal Medicine Associates, PA. 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.

What insurance does Hsu & Hsu Internal Medicine Associates, PA accept?

Health plans from Molina Healthcare list Hsu & Hsu Internal Medicine Associates, PA as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Hsu & Hsu Internal Medicine Associates, PA was last updated on July 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.