Doctor profile · Federal record
Dr. Lewis Leng, M.D.
Neurological Surgery Physician (CMS: Neurosurgery) · San Francisco, CA
- NPI 1508018508
- Accepts Medicare
- 20 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1100 van Ness Ave
San Francisco, CA 94109
(415) 600-0528
fax (415) 369-1207 - Additional location
-
165 Rowland Way Ste 201
Novato, CA 949455055
fax (415) 375-4800 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- October 2008 — 18 yrs on file
- Profile last updated
- May 6, 2020
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- California #1145285
- Medicaid
- CA #1508018508
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1508018508. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
442
Distinct HCPCS
10
Medicare allowed
$79,337
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 128 | 108 | $108 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 73 | 67 | $153 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 52 | 47 | $213 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 39 | 39 | $197 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 35 | 35 | $193 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 33 | 33 | $127 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 21 | 21 | $147 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 17 | 14 | $90 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 17 | 12 | $135 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 15 | 15 | $260 |
In context: peer comparison
Among 17 peers in San Francisco Neurological Surgery Physician, average services per provider: 51. This provider delivers 8.7× the peer median.Open Payments
Industry payments received
All-time total
$71
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| MicroVention, INC. | 1 | $39.60 | |
| Globus Medical, INC. | 1 | $31.50 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
133
Patients
49
Total drug cost
$2,181
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meloxicam | Generic | 45 | 18 | $184 |
| Gabapentin | Generic | 41 | 20 | $1,123 |
| Pregabalin | Generic | 19 | 0 | $447 |
| Baclofen | Generic | 16 | 11 | $246 |
| Levetiracetam | Generic | 12 | 0 | $181 |
Hospital affiliations
Frequently asked questions
What is Dr. Lewis Leng's medical specialty?
Dr. Lewis Leng practices Neurological Surgery Physician in San Francisco, CA.
Where does Dr. Lewis Leng practice?
Dr. Lewis Leng practices at 1100 van Ness Ave, San Francisco, CA 94109. Office phone: 4156000528.
What is Dr. Lewis Leng's NPI?
Dr. Lewis Leng's National Provider Identifier (NPI) is 1508018508, issued by NPPES.
Does Dr. Lewis Leng accept Medicare assignment?
Yes. Dr. Lewis Leng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lewis Leng commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.