Timothy Tien-wei Cheng, MD - Medicare Orthopedic Surgery in Fountain Valley, CA

Timothy Tien-wei Cheng, MD is a medicare enrolled "Orthopaedic Surgery" physician in Fountain Valley, California. He went to University Of California, Geffen School Of Medicine and graduated in 2013 and has 11 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Orthowest and his current practice location is 8700 Warner Ave Ste 140, Fountain Valley, California. You can reach out to his office (for appointments etc.) via phone at (714) 850-7300.

Timothy Tien-wei Cheng is licensed to practice in California (license number A132691) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1972940872.

Contact Information

Timothy Tien-wei Cheng, MD
8700 Warner Ave Ste 140,
Fountain Valley, CA 92708-3209
(714) 850-7300
Not Available

Map and Direction




Physician's Profile

Full NameTimothy Tien-wei Cheng
GenderMale
SpecialityOrthopedic Surgery
Experience11 Years
Location8700 Warner Ave Ste 140, Fountain Valley, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Timothy Tien-wei Cheng attended and graduated from University Of California, Geffen School Of Medicine in 2013
  NPI Data:
  • NPI Number: 1972940872
  • Provider Enumeration Date: 05/31/2013
  • Last Update Date: 01/17/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4183952989
  • Enrollment ID: I20201006001511

Medical Identifiers

Medical identifiers for Timothy Tien-wei Cheng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972940872NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery 278393 (Massachusetts)Secondary
207XX0005XOrthopaedic Surgery - Sports Medicine A132691 (California)Secondary
207X00000XOrthopaedic Surgery A132691 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Memorialcare Orange Coast Medical CenterFountain valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orthowest307293262333

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. Timothy Tien-wei Cheng allows following entities to bill medicare on his behalf.
Entity NameOrthowest
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760007330
PECOS PAC ID: 3072932623
Enrollment ID: O20200930002560

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. Timothy Tien-wei Cheng 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 AddressPractice Location Address
Timothy Tien-wei Cheng, MD
8700 Warner Ave Ste 140,
Fountain Valley, CA 92708-3209

Ph: (714) 850-7300
Timothy Tien-wei Cheng, MD
8700 Warner Ave Ste 140,
Fountain Valley, CA 92708-3209

Ph: (714) 850-7300

Reviews and Comments


Orthopaedic Surgery Doctors in Fountain Valley, CA

Jawad Khan, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 11190 Warner Ave Ste 300, Fountain Valley, CA 92708
Phone: 714-241-7000    Fax: 714-241-7003
Dr. Kenneth L Chambers, M.D., M.P.H
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 11160 Warner Avenue, 311, Fountain Valley, CA 92708
Phone: 714-850-7300    Fax: 714-957-7348
Jeffrey Wong, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 18785 Brookhurst St Ste 100, Fountain Valley, CA 92708
Phone: 714-500-5056    Fax: 949-540-7148
Dr. Richard Charles Raczka, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 11190 Warner Ave Ste 300, Fountain Valley, CA 92708
Phone: 714-241-7000    Fax: 714-241-7003
Richard Yd Lin,
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 11190 Warner Ave, Suite 306, Fountain Valley, CA 92708
Phone: 714-432-9990    Fax: 714-432-9988
Dr. Daniel Terah Stein, M.D.
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 11160 Warner Ave Ste 311, Fountain Valley, CA 92708
Phone: 714-850-7300    Fax: 714-850-7310
Keun-heng Huo, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 18035 Brookhurst St, Ste 1200, Fountain Valley, CA 92708
Phone: 949-691-3131    Fax: 949-940-8311

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.