DR. ANNE AN-RU CHEN M.D.
NPI 1003852708
Internal Medicine in Vacaville, CA
About Dr. Anne An-ru Chen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANNE AN-RU CHEN M.D. (NPI 1003852708) is an individual internal medicine provider in Vacaville, California, licensed in California (A83589) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Fairfield, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2000).
NPPES Registry Identity
Specialties & Licenses
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.
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Anne An-ru Chen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95688 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Anne Chen's NPI number?
The NPI number for Anne Chen is 1003852708. It was assigned to this individual provider in the NPPES registry on June 21, 2006.
Where is Anne Chen located?
Anne Chen practices at 770 Mason St, Vacaville, CA 95688. The listed phone number is (707) 427-4900.
What is Anne Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Anne Chen enrolled in Medicare?
Yes. Anne Chen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Anne Chen was last updated on September 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
