Dr. Stuart L. Willson, MD
- Medicare services, 2023
- 3,324
- Part D claims, 2024
- 379
- Industry payments
- $8,512
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1136 W 6th St, Los Angeles, CA 90017
- Practice phone
- Call (213) 977-1144
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cardiology Internal Medical Group - Los Angeles (W 6th St)
Primary care practice · Los Angeles, California
Find Dr. Willson'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. Stuart L. Willson is an internist in Los Angeles, California
Dr. Willson practices at Cardiology Internal Medical Group - Los Angeles (W 6th St) in Los Angeles, California.
Dr. Willson's NPI, 1841262045, was assigned on February 2, 2006. Dr. Willson graduated from University Of Minnesota Medical School in 1982. Dr. Willson's California license number on file is G52677.
- NPI
- 1841262045NPI Registry (opens in a new tab)
- NPI enumeration date
- February 2, 2006
- NPI status
- Active
- Practice phone
- (213) 977-1144
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stuart L. Willson practices at 2 locations in Los Angeles, California
Dr. Willson's primary practice is Cardiology Internal Medical Group - Los Angeles (W 6th St), at 1136 W 6th St, Los Angeles, CA 90017. The practice phone is (213) 977-1144. The NPI Registry lists Dr. Willson's practice address as 1245 W Wilshire Blvd, Los Angeles, CA 90017.
- Cardiology Internal Medical Group - Los Angeles (W 6th St)Primary1136 W 6th St, Los Angeles, CA 90017Phone(213) 977-1144
- NPI Registry address1245 W Wilshire Blvd, Los Angeles, CA 90017 · Los Angeles CountyPhone(213) 977-1144
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Stuart L. Willson is affiliated with 1 site of care and 1 medical group
Dr. Willson's primary practice is Cardiology Internal Medical Group - Los Angeles (W 6th St) in Los Angeles, California. The medical group on file is Cardiology Internal Medical Group Inc.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Stuart L. Willson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cardiology Internal Medical Group - Los Angeles (W 6th St) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stuart L. Willson is one of 16,751 internists in California
Internal medicine is Dr. Willson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Willson is board certified in internal medicine by the American Board of Internal Medicine. Dr. Willson has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute gastroduodenitis, acute sinusitis, acute skin infection, aneurysm, asthma, atrial fibrillation and flutter, bronchitis and chronic anemia among the conditions Dr. Willson treats.
Internists near Dr. Willson
Counts of internists 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. Stuart L. Willson billed Medicare for 3,324 services in 2023
CMS data shows 3,324 Medicare services from Dr. Willson across 28 procedure codes in 2023. Medicare paid $73,440 for them. Every service was in an office.
Dr. Willson's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Lab and pathology
- 2022: 2,9322023: 2,20925%
- Office and hospital visits
- 2022: 3692023: 32811%
- Imaging
- 2022: 3862023: 27828%
- Tests and treatments
- 2022: 3692023: 27326%
- Surgery
- 2022: 2712023: 21620%
- Other services
- 2022: 472023: 2057%
Dr. Willson compared with the California median for internists, 2023
- Dr. Willson
- California median
- Medicare services
- 3,324vs 3619.2 times
- Part D claims
- 159vs 42162% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Willson's most billed Medicare procedure codes, 2023
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. Willson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willson and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stuart L. Willson's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Willson's median patient age at 76, with 42% women.
Dr. Willson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women42%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. Stuart L. Willson wrote 379 Medicare Part D claims in 2024
In 2024, Dr. Willson wrote 379 Medicare Part D claims for 121 patients. 95% of them were for generic drugs. CMS names the drug for 159 of them, across 8 drugs with 11 or more claims each, at $2,042 in total drug cost. In 2023, CMS named 2,316 claims across 54 drugs.
Dr. Willson's Part D claims by kind of drug, 2024
- Generic361 claims95%
- Brand-name18 claims5%
Dr. Willson'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3162024: 15993%
Drugs named by CMS: 8 in 2024, 54 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
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Dr. Stuart L. Willson received $8,512 in industry payments from 2016 to 2025
CMS Open Payments shows 447 general payments to Dr. Willson from 42 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $1,289.
General payments to Dr. Willson by program year, 2016 to 2025
General payments to Dr. Willson by kind, 2016 to 2025
- Food and beverage$8,486100%
- Gifts$180%
- Education$80%
Companies that paid Dr. Willson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stuart L. Willson has 1 award and honors on record
Dmand AI lists 1 award for Dr. Willson, most recently CMS Stage 1 EHR in 2014.
Awards and honors for Dr. Willson
- 2014
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Stuart L. Willson graduated from University Of Minnesota Medical School
Dr. Willson graduated from University Of Minnesota Medical School in 1982.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Stuart L. Willson accepts plans from 5 insurance carriers
Dr. Willson is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Molina
Plan types Dr. Willson accepts, by number of carriers
- Medicare5
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stuart L. Willson'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| 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) |
| 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. Stuart L. Willson
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. Stuart L. Willson's NPI number?
Dr. Stuart L. Willson's NPI number is 1841262045. It was assigned on February 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stuart L. Willson?
Dr. Stuart L. Willson is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stuart L. Willson practice?
Dr. Willson practices at 1136 W 6th St, Los Angeles, CA 90017. Dr. Willson also practices at 1245 W Wilshire Blvd, Los Angeles, CA 90017. Dr. Willson's primary practice is Cardiology Internal Medical Group - Los Angeles (W 6th St) in Los Angeles, California.
What is Dr. Stuart L. Willson's office phone number?
The practice phone on file for Dr. Willson is (213) 977-1144.
What is Dr. Stuart L. Willson's medical license number?
Dr. Willson's California license number on file is G52677.
What medical group is Dr. Stuart L. Willson part of?
Dr. Willson is linked to Cardiology Internal Medical Group Inc.
Does Dr. Stuart L. Willson accept Medicare?
Yes. CMS data shows Dr. Willson billed Medicare for 3,324 services in 2023.
Is Dr. Stuart L. Willson board certified?
Yes. Dr. Willson is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Stuart L. Willson bill to Medicare?
In 2023, Dr. Willson's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (84443) and lab and pathology test (84481).
Where did Dr. Stuart L. Willson go to medical school?
Dr. Willson graduated from University Of Minnesota Medical School in 1982.
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What drugs does Dr. Stuart L. Willson prescribe most?
In 2024 Medicare Part D data, Dr. Willson's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Stuart L. Willson received payments from drug or device companies?
CMS Open Payments shows $8,512 in general payments to Dr. Willson from 42 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Stuart L. Willson been practicing?
Dr. Willson graduated from medical school in 1982, 44 years ago.
What insurance does Dr. Stuart L. Willson accept?
Dr. Willson is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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