Tianyu Chen, MD in Orange, CA - Medicare Hospitalist

Tianyu Chen, MD is a medicare enrolled "Internal Medicine" physician in Orange, California. She graduated from medical school in 2018 and has 7 years of diverse experience with area of expertise as Hospitalist. She is a member of the group practice The Regents Of The University Of California and her current practice location is 101 The City Dr S, Orange, California. You can reach out to her office (for appointments etc.) via phone at (714) 456-8888.

Tianyu Chen is licensed to practice in California (license number A165639) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1164927463.

Contact Information

	Tianyu Chen, MD
	101 The City Dr S, Orange, CA 92868-3201
	(714) 456-8888
	Not Available

Map and Direction

Physician's Profile

Full Name	Tianyu Chen
Gender	Female
Speciality	Hospitalist
Experience	7 Years
Location	101 The City Dr S, Orange, California
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Tianyu Chen graduated from medical school in 2018

NPI Data:

NPI Number: 1164927463
Provider Enumeration Date: 03/28/2018
Last Update Date: 09/10/2025

Medicare PECOS Information:

PECOS PAC ID: 6406267178
Enrollment ID: I20210901002926

Medical Identifiers

Medical identifiers for Tianyu Chen such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1164927463	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
208M00000X	Hospitalist	A165639 (California)	Secondary
207R00000X	Internal Medicine	A165639 (California)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Ronald Reagan Ucla Medical Center	Los angeles, CA	Hospital
Santa Monica - Ucla Med Ctr & Orthopaedic Hospital	Santa monica, CA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
The Regents Of The University Of California	1355248584	1333

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. Tianyu Chen allows following entities to bill medicare on her behalf.

Entity Name	Regents Of The University Of California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1760552343 PECOS PAC ID: 4284547274 Enrollment ID: O20031106000389

Entity Name	University Of California San Francisco
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1861578973 PECOS PAC ID: 4486567229 Enrollment ID: O20031212000897

Entity Name	The Regents Of The University Of California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1235107566 PECOS PAC ID: 1355248584 Enrollment ID: O20031223000439

Entity Name	Ucsf Medical Group Business Services
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1477624104 PECOS PAC ID: 3779497870 Enrollment ID: O20040622001513

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. Tianyu 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
Tianyu Chen, MD 5767 W Century Blvd Ste 400, Los Angeles, CA 90045-5631 Ph: (310) 301-8707	Tianyu Chen, MD 101 The City Dr S, Orange, CA 92868-3201 Ph: (714) 456-8888

Reviews and Comments

Internal Medicine Doctors in Orange, CA

Michael Cheng, DO Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 101 The City Dr S, Orange, CA 92868 Phone: 714-456-7110
Harry Nguyen, D.O. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 101 The City Dr S, Orange, CA 92868 Phone: 714-456-7002
Dr. Nicole Foley, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 200 S Manchester Ave Ste 400, Orange, CA 92868 Phone: 714-456-5153
Millie Arora, Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 101 The City Dr S, City Tower, Suite 400, Orange, CA 92868 Phone: 714-456-5691 Fax: 714-456-8874
Dr. Antonio Halais Frangieh, MD, MPH Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 101 The City Dr S, Orange, CA 92868 Phone: 714-456-7890
Mark E Wylam, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 101 The City Dr S, Orange, CA 92868 Phone: 714-456-7890
Dr. Andy Yen-tang Lee, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 101 The City Dr S, Orange, CA 92868 Phone: 714-456-7890

Tianyu Chen, MD - Medicare Hospitalist in Orange, CA