Mignonette Mae Willkom, MD - Medicare Family Practice in Livermore, CA

Mignonette Mae Willkom, MD is a medicare enrolled "Family Medicine" physician in Livermore, California. She graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice University Healthcare Alliance and her current practice location is 1133 E Stanley Blvd Ste 101, Livermore, California. You can reach out to her office (for appointments etc.) via phone at (925) 454-4280.

Mignonette Mae Willkom is licensed to practice in California (license number A53664) 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 1003883133.

Contact Information

Mignonette Mae Willkom, MD
1133 E Stanley Blvd Ste 101,
Livermore, CA 94550-4270
(925) 454-4280
Not Available

Map and Direction




Physician's Profile

Full NameMignonette Mae Willkom
GenderFemale
SpecialityFamily Practice
Experience37 Years
Location1133 E Stanley Blvd Ste 101, Livermore, 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:
  • Mignonette Mae Willkom graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1003883133
  • Provider Enumeration Date: 03/07/2006
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8820071186
  • Enrollment ID: I20040609000657

Medical Identifiers

Medical identifiers for Mignonette Mae Willkom such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003883133NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A53664 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Stanford Health Care - ValleycarePleasanton, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Healthcare Alliance6305748799341

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. Mignonette Mae Willkom allows following entities to bill medicare on her behalf.
Entity NameUniversity Healthcare Alliance
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760531198
PECOS PAC ID: 6305748799
Enrollment ID: O20040126000292

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. Mignonette Mae Willkom 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
Mignonette Mae Willkom, MD
1133 E Stanley Blvd Ste 101,
Livermore, CA 94550-4270

Ph: (925) 454-4280
Mignonette Mae Willkom, MD
1133 E Stanley Blvd Ste 101,
Livermore, CA 94550-4270

Ph: (925) 454-4280

Reviews and Comments


Family Medicine Doctors in Livermore, CA

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Phone: 925-505-4700    Fax: 925-371-4410
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Phone: 925-424-2544    Fax: 925-423-7967
Tsung Peter Wong, MD
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Phone: 925-371-8885    Fax: 925-371-8884
Alicia April Lo, MD
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Practice Location: 1133 E Stanley Blvd Ste 203, Livermore, CA 94550
Phone: 925-373-4541    
Kashika Gupta, MD
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Practice Location: 3000 Las Positas Rd, Livermore, CA 94551
Phone: 925-243-2600    
Arshian Mahajan, M.D.
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Medicare: Medicare Enrolled
Practice Location: 3000 Las Positas Rd, Livermore, CA 94551
Phone: 209-468-6000    

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.