Doctor profile · Federal record

Dr. Stuart Willson, M.D.

Internal Medicine Physician · Los Angeles, CA

  • NPI 1841262045
  • 20 yrs on file
  • Male
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1136 W 6Th St, Suite 307
Los Angeles, CA 900171805
(213) 977-1144
fax (213) 482-2182

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #G52677

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841262045. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,324
Distinct HCPCS
10
Medicare allowed
$96,381
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 216 174 $8
84443 Blood test, thyroid stimulating hormone (tsh) 177 150 $16
84481 Thyroid hormone, t3 measurement, free 167 147 $17
84439 Thyroxine (thyroid chemical), free 166 146 $9
99214 Established patient office or other outpatient visit, 30-39 minutes 164 156 $139
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 159 150 $15
80061 Blood test, lipids (cholesterol and triglycerides) 155 136 $13
83970 Parathormone (parathyroid hormone) level 150 135 $40
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 145 129 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 142 103 $99

In context: peer comparison

Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 21× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$310
Transactions
8
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
CVRx, INC. 1 $169.05
Novo Nordisk INC 5 $93.01
Alexion Pharmaceuticals, INC. 1 $29.05
Insulet Corporation 1 $18.47

By nature of payment

Food and Beverage
$310

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,465
Patients
485
Total drug cost
$30,042
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 284 95 $4,922
Amlodipine Besylate Generic 142 47 $2,213
Metformin Hcl Generic 140 44 $870
Pravastatin Sodium Generic 104 32 $1,999
Ezetimibe Generic 103 32 $4,805
Levothyroxine Sodium Generic 100 32 $1,682
Alendronate Sodium Generic 93 35 $978
Simvastatin Generic 81 25 $767
Valsartan-Hydrochlorothiazide (Valsartan/Hydrochlorothiazide) Brand 67 22 $2,675
Losartan Potassium Generic 65 21 $1,356

Frequently asked questions

Auto-generated from federal data
What is Dr. Stuart Willson's medical specialty?
Dr. Stuart Willson practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Stuart Willson practice?
Dr. Stuart Willson practices at 1136 W 6Th St, Los Angeles, CA 900171805. Office phone: 2139771144.
What is Dr. Stuart Willson's NPI?
Dr. Stuart Willson's National Provider Identifier (NPI) is 1841262045, issued by NPPES.
What procedures does Dr. Stuart Willson commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, thyroid stimulating hormone (tsh) (HCPCS 84443); Thyroid hormone, t3 measurement, free (HCPCS 84481). Source: CMS Medicare Physician & Other Practitioners file.