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WAN YAO, M.D. A PROFESSIONAL CORPORATION
NPI 1457386807
Internal Medicine in Monterey Park, CA

Active since July 12, 2006
228 N GARFIELD AVE STE 302, MONTEREY PARK, CA 91754(626) 288-3219(888) 349-7157 Get Directions Write a Review

NPPES record last updated: April 19, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 19, 2019, Apr 24, 2018 (2 updates tracked since 2018).

About Wan Yao, M.d. A Professional Corporation NPPES

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

WAN YAO, M.D. A PROFESSIONAL CORPORATION (NPI 1457386807) is a healthcare organization registered as an internal medicine in Monterey Park, California and active in the NPI registry since July 2006. The organization lists Wan Yao, President/owner, as its authorized official.

NPPES Registry Identity

NPI1457386807
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWAN YAO, M.D. A PROFESSIONAL CORPORATION
Location Address228 N GARFIELD AVE STE 302Monterey Park, CA 91754-1709
Mailing Address228 N Garfield Ave, Suite # 302Monterey Park, CA 91754-1709 · (626) 288-3219 · Fax (888) 349-7157
Phone(626) 288-3219
Fax(888) 349-7157
Organization SubpartNo
Authorized OfficialWan YaoPresident/owner · (626) 288-3219
Enumeration DateJuly 12, 2006
Last NPPES UpdateApril 19, 20192 updates tracked since enumeration
✔ NPI 1457386807 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
228 N GARFIELD AVE STE 302, Monterey Park, CA 91754
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Other Identifiers 1

Medicaid00A770601CA

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 MULTIPLE 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)

Wan Yao, M.d. 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 Wan Yao, M.D. A Professional Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Wan Yao, M.D.
Internal Medicine
NPI 1518951649
228 N GARFIELD AVE STE 302
Monterey Park, CA 91754
(626) 288-3219
✔ 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 Wan Yao, M.D. A Professional Corporation's NPI number?

The NPI number for Wan Yao, M.D. A Professional Corporation is 1457386807. It was assigned to this organization in the NPPES registry on July 12, 2006.

Where is Wan Yao, M.D. A Professional Corporation located?

Wan Yao, M.D. A Professional Corporation is located at 228 N Garfield Ave Ste 302, Monterey Park, CA 91754. The listed phone number is (626) 288-3219.

What is Wan Yao, M.D. A Professional Corporation's specialty?

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

Is Wan Yao, M.D. A Professional Corporation enrolled in Medicare?

Yes. Wan Yao, M.D. A Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Wan Yao, M.D. A Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Wan Yao, M.D. 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 Wan Yao, M.D. A Professional Corporation was last updated on April 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.