Doctor profile · Federal record
Dr. William Corn, MD
Neurological Surgery Physician (CMS: Neurology) · Neurology Physician · San Francisco, CA
- NPI 1962457903
- Accepts Medicare
- MIPS 85.5 / 100 · 2023
- 38 yrs in practice
- Male
- No sanctions
Practice & contact
- Primary practice
-
1001 Potrero Ave, Rm 4M62
San Francisco, CA 941103518
(415) 206-4353
fax (415) 476-5582 - Mailing address
-
Po Box 7464
San Francisco, CA 941207464
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- California #G68193
- Medicaid
- CA #00G681930
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1962457903. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
101
Distinct HCPCS
5
Medicare allowed
$12,290
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 30 | 24 | $111 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 25 | 12 | $135 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 16 | 16 | $163 | |
95886 |
Needle measurement of electrical activity in arm or leg muscles, complete study | 15 | 13 | $52 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 15 | 14 | $147 |
In context: peer comparison
Among 17 peers in San Francisco Neurological Surgery Physician, average services per provider: 51. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$14
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 1 | $13.50 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. William Corn's medical specialty?
Dr. William Corn practices Neurological Surgery Physician in San Francisco, CA.
Where does Dr. William Corn practice?
Dr. William Corn practices at 1001 Potrero Ave, San Francisco, CA 941103518. Office phone: 4152064353.
What is Dr. William Corn's NPI?
Dr. William Corn's National Provider Identifier (NPI) is 1962457903, issued by NPPES.
Does Dr. William Corn accept Medicare assignment?
Yes. Dr. William Corn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Corn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.