Dr Oscar L Chien, MD - Medicare Internal Medicine in San Gabriel, CA

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Dr Oscar L Chien, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in San Gabriel, California. He graduated from medical school in 1990 and has 34 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 1448 S. San Gabriel Bl., San Gabriel, California. You can reach out to his office (for appointments etc.) via phone at (626) 569-2888.

Dr Oscar L Chien is licensed to practice in California (license number A54999) 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 1679675904.

Contact Information

Dr Oscar L Chien, MD
1448 S. San Gabriel Bl.,
San Gabriel, CA 91776
(626) 569-2888
(626) 569-9929

Map and Direction




Physician's Profile

Full NameDr Oscar L Chien
GenderMale
SpecialityInternal Medicine
Experience34 Years
Location1448 S. San Gabriel Bl., San Gabriel, 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:
  • Dr Oscar L Chien graduated from medical school in 1990
  NPI Data:
  • NPI Number: 1679675904
  • Provider Enumeration Date: 09/05/2006
  • Last Update Date: 04/02/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 2860516564
  • Enrollment ID: I20100902000070

Medical Identifiers

Medical identifiers for Dr Oscar L Chien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679675904NPI-NPPES
00A549990MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine A54999 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Quality Care Hh SpecialistsWest covina, CAHome health agency
Ivory Hospice, IncMonterey park, CAHospice
Methodist Hospital Of Southern CaArcadia, CAHospital
San Gabriel Valley Medical CenterSan gabriel, CAHospital
Garfield Medical CenterMonterey park, CAHospital
Broadway Healthcare CenterSan gabriel, CANursing home
Alhambra Healthcare & Wellness Centre, LpAlhambra, CANursing home
Santa Anita Convalescent HospitalTemple city, CANursing home
Pine Grove Healthcare & Wellness Centre, LpSan gabriel, CANursing home
Monte Vista Healthcare CenterDuarte, CANursing home

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 Oscar L Chien 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
Dr Oscar L Chien, MD
1448 S. San Gabriel Bl.,
San Gabriel, CA 91776

Ph: (626) 569-2888		Dr Oscar L Chien, MD
1448 S. San Gabriel Bl.,
San Gabriel, CA 91776

Ph: (626) 569-2888

Reviews and Comments


Internal Medicine Doctors in San Gabriel, CA

Dr. Aaron I-lun Jeng, MD, MPH
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 438 W Las Tunas Dr, San Gabriel, CA 91776
Phone: 626-289-5454    
Michelle L. Chan, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1726 New Ave, San Gabriel, CA 91776
Phone: 626-943-0780    Fax: 626-943-0200
Dr. Greg Shih-han Yen, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 131 E Las Tunas Dr, San Gabriel, CA 91776
Phone: 626-576-8500    Fax: 626-576-8050
Dr. Zhi Zeng, MD
Geriatric Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 316 E Las Tunas Dr Ste 102, San Gabriel, CA 91776
Phone: 626-300-8880    
Dr. James William Golden, M.D.
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 225 E Las Tunas Dr, San Gabriel, CA 91776
Phone: 626-287-8642    Fax: 626-287-2970
Dr. Jeff Sao, M.D
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 721 El Monte St, San Gabriel, CA 91776
Phone: 626-731-4000    
Shih-fang Wang, MD
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 207 S Santa Anita Ave, San Gabriel, CA 91776
Phone: 626-943-3229    Fax: 626-943-3251

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.