Willa Jolie Chen, MD, MPH - Medicare Family Practice in Oakland, CA

Willa Jolie Chen, MD, MPH is a medicare enrolled "Family Medicine" physician in Oakland, California. She graduated from medical school in 2022 and has 4 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Sutter Bay Medical Foundation and her current practice location is 350 Hawthorne Ave Rm 2316, Oakland, California. You can reach out to her office (for appointments etc.) via phone at (510) 869-6883.

Willa Jolie Chen is licensed to practice in California (license number A189668) 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 1497496244.

Contact Information

Willa Jolie Chen, MD, MPH
350 Hawthorne Ave Rm 2316,
Oakland, CA 94609-3108
(510) 869-6883
(510) 869-6888

Map and Direction




Physician's Profile

Full NameWilla Jolie Chen
GenderFemale
SpecialityFamily Practice
Experience4 Years
Location350 Hawthorne Ave Rm 2316, Oakland, 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:
  • Willa Jolie Chen graduated from medical school in 2022
  NPI Data:
  • NPI Number: 1497496244
  • Provider Enumeration Date: 04/05/2022
  • Last Update Date: 09/18/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8022512391
  • Enrollment ID: I20250918003943

Medical Identifiers

Medical identifiers for Willa Jolie Chen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497496244NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A189668 (California)Primary
208M00000XHospitalist A189668 (California)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Alta Bates Summit Medical CenterOakland, CAHospital
Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CAHospital
Kaiser Foundation Hospital - Oakland/richmondOakland, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sutter Bay Medical Foundation42845387783741

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. Willa Jolie 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 AddressPractice Location Address
Willa Jolie Chen, MD, MPH
Po Box 276950,
Sacramento, CA 95827-6950

Ph: () -
Willa Jolie Chen, MD, MPH
350 Hawthorne Ave Rm 2316,
Oakland, CA 94609-3108

Ph: (510) 869-6883

Reviews and Comments


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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.