Doctor profile · Federal record
Dr. William Lee, MD
Internal Medicine Physician (CMS: Internal Medicine) · Simi Valley, CA
- NPI 1619960705
- Accepts Medicare
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2755 Alamo St Ste 101
Simi Valley, CA 93065
(818) 726-1930
fax (818) 878-1563 - Additional location
-
2950 Sycamore Dr, Ste 300
Simi Valley, CA 930651210
(805) 526-0226
fax (805) 526-7092
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- July 11, 2018
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #C50628
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1619960705. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
484
Distinct HCPCS
6
Medicare allowed
$57,343
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 320 | 156 | $128 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 58 | 55 | $92 | |
99497 |
Advance care planning, first 30 minutes | 41 | 41 | $80 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 40 | 40 | $126 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $169 | |
G0008 |
Administration of influenza virus vaccine | 12 | 12 | $30 |
In context: peer comparison
Among 11 peers in this city , average services per provider: 138. This provider delivers 3.5× the peer median.Open Payments
Industry payments received
All-time total
$1,566
Transactions
65
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 18 | $470.80 | |
| AstraZeneca Pharmaceuticals LP | 15 | $382.73 | |
| Novo Nordisk Inc | 10 | $199.82 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 4 | $96.05 | |
| Lilly USA, LLC | 3 | $85.44 | |
| PFIZER INC. | 3 | $61.04 | |
| Merck Sharp & Dohme LLC | 2 | $60.52 | |
| Amgen Inc. | 2 | $55.85 | |
| Inari Medical, Inc. | 2 | $43.22 | |
| Bayer Healthcare Pharmaceuticals Inc. | 2 | $35.41 | |
| Dexcom, Inc. | 1 | $21.45 | |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 1 | $20.78 | |
| ShockWave Medical, Inc | 1 | $18.96 | |
| Alnylam Pharmaceuticals Inc. | 1 | $14.07 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,323
Patients
983
Total drug cost
$49,170
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 383 | 117 | $5,191 |
| Levothyroxine Sodium | Generic | 332 | 87 | $5,798 |
| Rosuvastatin Calcium | Generic | 329 | 97 | $8,514 |
| Amlodipine Besylate | Generic | 286 | 92 | $2,871 |
| Lisinopril | Generic | 247 | 73 | $1,810 |
| Metformin Hcl | Generic | 241 | 81 | $3,148 |
| Simvastatin | Generic | 209 | 58 | $1,877 |
| Escitalopram Oxalate | Generic | 205 | 53 | $2,746 |
| Meloxicam | Generic | 199 | 46 | $701 |
| Gabapentin | Generic | 187 | 57 | $2,860 |
Hospital affiliations
Frequently asked questions
What is Dr. William Lee's medical specialty?
Dr. William Lee practices Internal Medicine Physician in Simi Valley, CA.
Where does Dr. William Lee practice?
Dr. William Lee practices at 2755 Alamo St Ste 101, Simi Valley, CA 93065. Office phone: 8187261930.
What is Dr. William Lee's NPI?
Dr. William Lee's National Provider Identifier (NPI) is 1619960705, issued by NPPES.
Does Dr. William Lee accept Medicare assignment?
Yes. Dr. William Lee accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Lee commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.