Yichen Ethel Wu, MD - Medicare Internal Medicine in San Francisco, CA

Yichen Ethel Wu, MD is a medicare enrolled "Hospitalist" physician in San Francisco, California. She went to Boston University School Of Medicine and graduated in 2009 and has 15 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Regents Of The University Of California and her current practice location is 521 Parnassus Ave, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 502-1413.

Yichen Ethel Wu is licensed to practice in California (license number A121923) 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 1871722611.

Contact Information

Yichen Ethel Wu, MD
521 Parnassus Ave,
San Francisco, CA 94143
(415) 502-1413
(415) 476-4818

Map and Direction




Physician's Profile

Full NameYichen Ethel Wu
GenderFemale
SpecialityInternal Medicine
Experience15 Years
Location521 Parnassus Ave, San Francisco, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Yichen Ethel Wu attended and graduated from Boston University School Of Medicine in 2009
  NPI Data:
  • NPI Number: 1871722611
  • Provider Enumeration Date: 07/14/2009
  • Last Update Date: 02/25/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6507012010
  • Enrollment ID: I20120815000381

Medical Identifiers

Medical identifiers for Yichen Ethel Wu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871722611NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A121923 (California)Secondary
208M00000XHospitalist A121923 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ucsf Medical CenterSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of California4284547274581

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. Yichen Ethel Wu allows following entities to bill medicare on her behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881763597
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897

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. Yichen Ethel Wu 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
Yichen Ethel Wu, MD
521 Parnassus Ave,
San Francisco, CA 94143

Ph: (415) 502-1413
Yichen Ethel Wu, MD
521 Parnassus Ave,
San Francisco, CA 94143

Ph: (415) 502-1413

Reviews and Comments


Hospitalist Doctors in San Francisco, CA

Elizabeth A. Andrews, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 2200 Ofarrell St, San Francisco, CA 94115
Phone: 415-833-2000    
Yu-chen Hu, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1101 Van Ness Ave, San Francisco, CA 94109
Phone: 415-600-6000    
James Harding,
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 45 Castro St, San Francisco, CA 94114
Phone: 925-389-6906    
Deborah Chiarucci, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 2200 Ofarrell St, San Francisco, CA 94115
Phone: 415-833-2000    
Dr. Sneha Kemkar,
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 3700 California St, San Francisco, CA 94118
Phone: 423-309-6170    
Dr. Fiona Henderson,
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 3555 Cesar Chavez Street, San Francisco, CA 94110
Phone: 415-647-8600    Fax: 415-641-6823
Todd A. Levine, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 2200 Ofarrell St, San Francisco, CA 94115
Phone: 415-833-2000    

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.