Mignonette Mae Willkom, MD
Family Medicine Physician · Livermore, CA
Mignonette Mae Willkom, MD is a family medicine physician with a practice address in Livermore, California, and NPI 1003883133, issued on Mar 7, 2006. Check the license (California A53664, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mignonette Mae Willkom
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A53664 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1133 E Stanley Blvd Ste 101, Livermore, CA 94550
- Phone
- (925) 454-4280
- Enumerated
- Mar 7, 2006
- Record last updated
- Aug 10, 2023
- Medicare enrollment
- Enrolled (PECOS I20040609000657); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1133 E Stanley Blvd Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin Lee, MDPulmonary Disease Physician1245230333
- Reta Samimi, PA-CPhysician Assistant1790322253
Verify Mignonette Mae Willkom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A53664Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average family medicine physician in 2024
3,228 Medicare Part D claims for 383 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium267 claims
- Lisinopril234 claims
- Levothyroxine Sodium208 claims
- Amlodipine Besylate205 claims
- Metoprolol Succinate96 claims
- Metformin Hcl Er90 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $14.99
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University Healthcare AllianceLivermore, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mignonette Mae Willkom among 17,133 family medicine physician records in California
Mignonette Mae Willkom, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1987 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 family medicine physician records list a practice address in Livermore
They are 20 of the 994 NPPES records with a practice address in Livermore, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Livermore → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lalita Abhyankar, MD MHSLivermore, CA 945501689092439
- Michelle Cortes-Surdilla, MDLivermore, CA 945501619233798
- Richard Kilker, MDLivermore, CA 945501932268976
- Frank Lin, MDLivermore, CA 945501508954017
- Alicia Lo, MDLivermore, CA 945501093240939
- Jennifer McIrvinLivermore, CA 945501134384308
- Manjula Muppu, MDLivermore, CA 945501104088582
- Vu Ngo, MDLivermore, CA 945501255350930
Common questions
What is Mignonette Mae Willkom, MD's NPI number?
Mignonette Mae Willkom, MD's National Provider Identifier (NPI) is 1003883133, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mignonette Mae Willkom, MD located?
The NPPES record lists a practice address at 1133 E Stanley Blvd Ste 101, Livermore, CA, 94550. Phone: (925) 454-4280. Providers update this record themselves, so call before visiting.
How can I verify Mignonette Mae Willkom, MD's license?
NPPES lists California license number A53664, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mignonette Mae Willkom, MD prescribe under Medicare Part D?
In 2024, Mignonette Mae Willkom, MD had 3,228 Medicare Part D claims for 383 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.