Stuart Willson, M.D.
NPI 1841262045 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stuart Willson, M.D. is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1841262045).
Provider details
- NPI number
- 1841262045
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- G52677 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 52 | 32 |
| Amlodipine Besylate | 27 | 17 |
| Metformin Hcl | 20 | 12 |
| Omeprazole | 13 | — |
| Pravastatin Sodium | 13 | — |
| Losartan Potassium | 12 | — |
| Hydrochlorothiazide | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$310 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stuart Willson's NPI number?
- Stuart Willson's National Provider Identifier (NPI) is 1841262045, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stuart Willson's specialty?
- Stuart Willson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stuart Willson located?
- Stuart Willson's practice location on file with NPPES is 1136 W 6th St, Los Angeles, CA 90017-1805.
- What is Stuart Willson's phone number?
- The practice phone number listed in the NPPES registry for Stuart Willson is (213) 977-1144.
- Does Stuart Willson accept Medicare?
- Stuart Willson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stuart Willson's NPI active?
- Yes — Stuart Willson's NPI (1841262045) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.