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WENCHENG JEN MD
NPI 1154855278
Internal Medicine in San Gabriel, CA

Active since April 14, 2017
416 W LAS TUNAS DR STE 305, SAN GABRIEL, CA 91776(626) 416-3051(626) 478-1068 Get Directions Write a Review

NPPES record last updated: April 14, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Wencheng Jen Md NPPES

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

WENCHENG JEN MD (NPI 1154855278) is a healthcare organization registered as an internal medicine in San Gabriel, California and active in the NPI registry since April 2017. The organization lists Wencheng Jen, President, as its authorized official.

NPPES Registry Identity

NPI1154855278
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWENCHENG JEN M.D. INC
Location Address416 W LAS TUNAS DR STE 305San Gabriel, CA 91776-1236
Mailing Address416 W Las Tunas Dr Ste 305San Gabriel, CA 91776-1236 · (626) 416-3051 · Fax (626) 478-1068
Phone(626) 416-3051
Fax(626) 478-1068
Organization SubpartNo
Authorized OfficialWencheng JenPresident · (626) 297-1277
Enumeration DateApril 14, 2017
✔ NPI 1154855278 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 · A70481
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.
416 W LAS TUNAS DR STE 305, San Gabriel, CA 91776
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Other Names 1

Doing Business AsWencheng Jen Md

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Wencheng Jen Md 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 Wencheng Jen MD, which bills Medicare for the services this clinician delivers.

Clinician (1)

Wencheng Jen, M.D.
Internal Medicine
NPI 1811915481
817 S 1ST AVE UNIT A UNIT A
Arcadia, CA 91006
(626) 416-3051
✔ PECOS✔ Accepts Medicare5.4 mi

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 Wencheng Jen M.D. Inc's NPI number?

The NPI number for Wencheng Jen M.D. Inc is 1154855278. It was assigned to this organization in the NPPES registry on April 14, 2017. The provider is doing business as Wencheng Jen MD.

Where is Wencheng Jen M.D. Inc located?

Wencheng Jen M.D. Inc is located at 416 W Las Tunas Dr Ste 305, San Gabriel, CA 91776. The listed phone number is (626) 416-3051.

What is Wencheng Jen M.D. Inc's specialty?

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

Is Wencheng Jen M.D. Inc enrolled in Medicare?

Yes. Wencheng Jen M.D. Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Wencheng Jen M.D. Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Wencheng Jen 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.

When was this NPI record last updated?

The NPPES record for Wencheng Jen M.D. Inc was last updated on April 14, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.