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MR. YUN YEN MD
NPI 1003827486
Internal Medicine - Medical Oncology in Duarte, CA

Active since August 10, 2006
1500 E DUARTE RD, DUARTE, CA 91010(626) 359-8111 Get Directions Write a Review

NPPES record last updated: August 25, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mr. Yun Yen Md NPPES

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

MR. YUN YEN MD (NPI 1003827486) is an individual medical oncology provider in Duarte, California, licensed in California (A45995) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1003827486
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameMR. YUN YENCredential: MD
Location Address1500 E DUARTE RDDuarte, CA 91010
Mailing Address1333s Mayflower Ave 2Monrovia, CA 91016-4066 · (626) 775-3514 · Fax (626) 408-3911
Phone(626) 359-8111
Sole ProprietorNo
Enumeration DateAugust 10, 2006
Last NPPES UpdateAugust 25, 2015
✔ NPI 1003827486 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in CA · A45995
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal MedicineTaxonomy 207R00000X · License A45995 (CA)
1500 E DUARTE RD, Duarte, CA 91010
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type UnspecifiedWA45995ACA
Medicaid00A459950CA
Medicare UPINF59574

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. YOUNG KIM MD
Pathology (Hematology)
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MS. ANNA B PAWLOWSKA MD
Pediatrics (Pediatric Hematology-Oncology)
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MS. ANDREA THORNTON PHD
Psychologist
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
DR. FINLY ZACHARIAH M.D.
Family Medicine (Hospice and Palliative Medicine)
1500 E DUARTE RD, DEPARTMENT OF SUPPORTIVE CARE
DUARTE, CA 91010
Los Angeles County (626) 256-4673
KIRSTEN PINA TALLMON PA-C
Physician Assistant
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 741-7100
MS. SUNITA PATEL PHD
Psychologist (Clinical)
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MS. CYNTHIA PARENTI MD
Anesthesiology
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MR. DAVID SNYDER MD
Internal Medicine (Hematology)
1500 E DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111

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 Yun Yen's NPI number?

The NPI number for Yun Yen is 1003827486. It was assigned to this individual provider in the NPPES registry on August 10, 2006.

Where is Yun Yen located?

Yun Yen practices at 1500 E Duarte Rd, Duarte, CA 91010. The listed phone number is (626) 359-8111.

What is Yun Yen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

When was this NPI record last updated?

The NPPES record for Yun Yen was last updated on August 25, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.