Dr Anne An-ru Chen, MD in Vacaville, CA - Medicare Internal Medicine

Dr Anne An-ru Chen, MD is a medicare enrolled "Internal Medicine" physician in Vacaville, California. Her current practice location is 770 Mason St, Vacaville, California. You can reach out to her office (for appointments etc.) via phone at (707) 427-4900.

Dr Anne An-ru Chen is licensed to practice in California (license number A83589) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1003852708.

Contact Information

	Dr Anne An-ru Chen, MD
	770 Mason St, Vacaville, CA 95688-4646
	(707) 427-4900
	(707) 454-5911

Map and Direction

Physician's Profile

Full Name	Dr Anne An-ru Chen
Gender	Female
Speciality	Internal Medicine
Location	770 Mason St, Vacaville, California
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1003852708
Provider Enumeration Date: 06/21/2006
Last Update Date: 09/30/2025

Medicare PECOS Information:

PECOS PAC ID: 4385548429
Enrollment ID: I20031120001022

Medical Identifiers

Medical identifiers for Dr Anne An-ru Chen such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1003852708	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	A83589 (California)	Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Anne An-ru Chen allows following entities to bill medicare on her behalf.

Entity Name	Anne Chen Md Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1760424212 PECOS PAC ID: 0345245494 Enrollment ID: O20060922000273

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Anne An-ru Chen is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Dr Anne An-ru Chen, MD Po Box 255228, Sacramento, CA 95865-5228 Ph: () -	Dr Anne An-ru Chen, MD 770 Mason St, Vacaville, CA 95688-4646 Ph: (707) 427-4900

Reviews and Comments

Internal Medicine Doctors in Vacaville, CA

Dr. Jason Rohrer, M.D. Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: Po Box 4000, Vacaville, CA 95696 Phone: 707-451-0182
Liyan Zhang, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1 Quality Dr, Vacaville, CA 95688 Phone: 707-453-5000
Marissa C. Neis-gimenez, MD Internal Medicine Medicare: Medicare Enrolled Practice Location: 1 Quality Dr, Vacaville, CA 95688 Phone: 707-453-5000
David M Woodhouse, MD Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 770 Mason St, Vacaville, CA 95688 Phone: 707-454-5800 Fax: 707-454-5911
Richard M Tan, M.D. Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 2100 Peabody Rd., Vacaville, CA 95696 Phone: 707-451-0182
Bethlehem Haile, M.D Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 1600 California Dr, Vacaville, CA 95687 Phone: 707-453-7007 Fax: 707-453-7009

Dr Anne An-ru Chen, MD - Medicare Internal Medicine in Vacaville, CA