Michael W Chien, MD - Allergy & Immunology in Fontana, CA

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Michael W Chien, MD is a Allergy & Immunology - Allergy physician based in Fontana, California. Michael W Chien is licensed to practice in California (license number G70196) and his current practice location is 9961 Sierra Ave, Fontana, California. He can be reached at his office (for appointments etc.) via phone at (909) 427-3910.

NPI number for Michael W Chien is 1689741555 and his current mailing address is 9961 Sierra Ave, Fontana, California. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1689741555.

Contact Information

Michael W Chien, MD
9961 Sierra Ave,
Fontana, CA 92335-6720
(909) 427-3910
Not Available

Map and Direction




Physician's Profile

Full NameMichael W Chien
GenderMale
SpecialityAllergy & Immunology - Allergy
Location9961 Sierra Ave, Fontana, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1689741555
  • Provider Enumeration Date: 11/29/2006
  • Last Update Date: 11/29/2021

Medical Identifiers

Medical identifiers for Michael W Chien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689741555NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207KA0200XAllergy & Immunology - Allergy G70196 (California)Primary

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. Michael W Chien is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Michael W Chien, MD
9961 Sierra Ave,
Fontana, CA 92335-6720

Ph: (909) 427-3910		Michael W Chien, MD
9961 Sierra Ave,
Fontana, CA 92335-6720

Ph: (909) 427-3910

Reviews and Comments


Allergy & Immunology Doctors in Fontana, CA

Sandy Y Jung-wu, MD
Allergy & Immunology
Medicare: Medicare Enrolled
Practice Location: 9985 Sierra Ave, Fontana, CA 92335
Phone: 909-427-6498    
Pauline B. Tsai, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-3910    
Michelle Dilley Revier, MD
Allergy & Immunology
Medicare: Medicare Enrolled
Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-5000    

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.