Dr. Mignonette Mae Willkom, MD
- Medicare services, 2024
- 1,807
- Medicare patients, 2024
- 366
- Part D claims, 2024
- 3,228
- Hospital affiliations
- 2
- Industry payments
- $901
- Practice address
- 1133 E Stanley Blvd, Livermore, CA 94550
- Practice phone
- Call (925) 847-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tri-Valley Ambulatory Surgery Center, LLC
Livermore, California
Find Dr. Willkom's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mignonette Mae Willkom is a family medicine physician in Livermore, California
Dr. Willkom practices at Tri-Valley Ambulatory Surgery Center, LLC in Livermore, California.
Dr. Willkom's NPI, 1003883133, was assigned on March 7, 2006. Dr. Willkom graduated from Other in 1987. Dr. Willkom holds California license A53664.
- NPI
- 1003883133NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820071186
- NPI enumeration date
- March 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (925) 847-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mignonette Mae Willkom practices at Tri-Valley Ambulatory Surgery Center, LLC in Livermore, California
Dr. Willkom's primary practice is Tri-Valley Ambulatory Surgery Center, LLC, at 1133 E Stanley Blvd, Livermore, CA 94550 in Alameda County. The practice phone is (925) 847-3000.
- Tri-Valley Ambulatory Surgery Center, LLC1133 E Stanley Blvd, Livermore, CA 94550 · Alameda CountyPhone(925) 847-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mignonette Mae Willkom is affiliated with 7 sites of care and 1 medical group
Dr. Willkom's primary practice is Tri-Valley Ambulatory Surgery Center, LLC in Livermore, California. Dr. Willkom is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Stanford Medicine Partners. Dmand AI also links Dr. Willkom to 1 more hospital, 3 home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mignonette Mae Willkom's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willkom practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tri-Valley Ambulatory Surgery Center, LLC | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mignonette Mae Willkom is one of 15,680 family medicine physicians in California
Family medicine is Dr. Willkom's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Willkom is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Willkom's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- New York license
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, alzheimer's disease, aneurysm, anxiety, aortic atherosclerois and asthma among the conditions Dr. Willkom treats.
Family medicine physicians near Dr. Willkom
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mignonette Mae Willkom billed Medicare for 1,807 services in 2024
CMS data shows 1,807 Medicare services from Dr. Willkom across 11 procedure codes in 2024, for 366 Medicare patients. Medicare paid $141,381 for them. Every service was in an office.
Dr. Willkom's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9552024: 9904%
- Other services
- 2023: 3332024: 701111%
- Tests and treatments
- 2023: 1282024: 1169%
Dr. Willkom compared with the California median for family medicine physicians, 2024
- Dr. Willkom
- California median
- Medicare services
- 1,807vs 2467.3 times
- Medicare patients
- 366vs 1183.1 times
- Part D claims
- 2,730vs 8333.3 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Willkom's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Willkom?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willkom and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mignonette Mae Willkom treated 366 Medicare patients in 2024, average age 75
CMS counts 366 Medicare patients who saw Dr. Willkom in 2024. The largest group is 65 to 74, with 161 patients. 74% of them have high cholesterol, and 72% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Willkom's median patient age at 59, with 64% women.
Dr. Willkom's Medicare patients by age, 2024
Dr. Willkom's Medicare patients by sex, 2024
- Women24266%
- Men12434%
Chronic conditions among Dr. Willkom's Medicare patients, 2024
- High cholesterol74%
- High blood pressure72%
- Arthritis36%
- Diabetes30%
- Chronic kidney disease27%
- Osteoporosis23%
- Mood disorders20%
- Cancer19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Willkom's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women64%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mignonette Mae Willkom wrote 3,228 Medicare Part D claims in 2024
In 2024, Dr. Willkom wrote 3,228 Medicare Part D claims for 383 patients. 93% of them were for generic drugs. CMS names the drug for 2,730 of them, across 63 drugs with 11 or more claims each, at $85,809 in total drug cost. In 2023, CMS named 3,046 claims across 63 drugs.
Dr. Willkom's Part D claims by kind of drug, 2024
- Generic2,988 claims93%
- Brand-name and other240 claims7%
Dr. Willkom's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Willkom's Part D claims, 2024
- Opioids0%11 of 3,228 claims
- Antibiotics4%114 of 3,228 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,0462024: 2,73010%
Drugs named by CMS: 63 in 2024, 63 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mignonette Mae Willkom offers telehealth to Medicare patients
Dr. Willkom accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Willkom as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mignonette Mae Willkom received $901 in industry payments from 2016 to 2024
CMS Open Payments shows 42 general payments to Dr. Willkom from 16 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $314.
General payments to Dr. Willkom by program year, 2016 to 2024
Companies that paid Dr. Willkom the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mignonette Mae Willkom has 1 award and honors on record
Dmand AI lists 1 award for Dr. Willkom, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Willkom
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Mignonette Mae Willkom graduated from Other
Dr. Willkom graduated from Other in 1987.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Mignonette Mae Willkom accepts plans from 5 insurance carriers
Dr. Willkom is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Willkom accepts, by number of carriers
- HMO3
- POS3
- EPO2
- Medicare2
- PPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mignonette Mae Willkom's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mignonette Mae Willkom
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mignonette Mae Willkom's NPI number?
Dr. Mignonette Mae Willkom's NPI number is 1003883133. It was assigned on March 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mignonette Mae Willkom?
Dr. Mignonette Mae Willkom is a family medicine physician in Livermore, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Mignonette Mae Willkom practice?
Dr. Willkom practices at 1133 E Stanley Blvd, Livermore, CA 94550. Dr. Willkom's primary practice is Tri-Valley Ambulatory Surgery Center, LLC in Livermore, California. Dmand AI also links Dr. Willkom to 1 hospital, 3 home health agencies and 1 group practice or clinic.
What is Dr. Mignonette Mae Willkom's office phone number?
The practice phone on file for Dr. Willkom is (925) 847-3000.
What is Dr. Mignonette Mae Willkom's medical license number?
Dr. Willkom holds California license A53664, one of the licenses on file in 2 states.
Which states has Dr. Mignonette Mae Willkom been licensed in?
Dmand AI has state licenses on file for Dr. Willkom in California (1994 to 2026) and New York (1994 to 2016).
Which hospitals is Dr. Mignonette Mae Willkom affiliated with?
Dr. Willkom is affiliated with Stanford Hospital at 300 Pasteur Drive. Dmand AI links Dr. Willkom to 1 more hospital.
What medical group is Dr. Mignonette Mae Willkom part of?
Dr. Willkom is linked to Stanford Medicine Partners.
Does Dr. Mignonette Mae Willkom accept Medicare?
Yes. CMS data shows Dr. Willkom billed Medicare for 1,807 services in 2024, and Dr. Willkom accepts Medicare assignment.
Does Dr. Mignonette Mae Willkom offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Willkom as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Mignonette Mae Willkom see?
CMS counts 366 Medicare patients who saw Dr. Willkom in 2024, with an average age of 75.
Is Dr. Mignonette Mae Willkom board certified?
Yes. Dr. Willkom is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Mignonette Mae Willkom bill to Medicare?
In 2024, Dr. Willkom's most billed Medicare services were office visit, established patient (99213), medicare service (G2211) and office visit, established patient (99214).
Where did Dr. Mignonette Mae Willkom go to medical school?
Dr. Willkom graduated from Other in 1987.
What drugs does Dr. Mignonette Mae Willkom prescribe most?
In 2024 Medicare Part D data, Dr. Willkom's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Levothyroxine Sodium.
Has Dr. Mignonette Mae Willkom received payments from drug or device companies?
CMS Open Payments shows $901 in general payments to Dr. Willkom from 16 companies from 2016 to 2024. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Mignonette Mae Willkom been practicing?
Dr. Willkom graduated from medical school in 1987, 39 years ago.
What insurance does Dr. Mignonette Mae Willkom accept?
Dr. Willkom is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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