Payment Breakdown by Category
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $280.79 | 14 | 100.0% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Stryker Corporation | $178.84 | 7 | $0 (2017) |
| Allergan, Inc. | $69.53 | 5 | $0 (2022) |
| ABBVIE INC. | $32.42 | 2 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $13.50 | 1 | ABBVIE INC. ($13.50) |
| 2023 | $18.92 | 1 | AbbVie Inc. ($18.92) |
| 2022 | $16.43 | 1 | Allergan, Inc. ($16.43) |
| 2021 | $53.10 | 4 | Allergan, Inc. ($53.10) |
| 2017 | $178.84 | 7 | Stryker Corporation ($178.84) |
All Payment Transactions
14 individual payment records from CMS Open Payments
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 04/09/2024 | ABBVIE INC. | BOTOX (Biological), UBRELVY | Food and Beverage | In-kind items and services | $13.50 | General |
| Category: BOTOX THERAPEUTIC | ||||||
| 10/12/2023 | AbbVie Inc. | BOTOX (Biological) | Food and Beverage | In-kind items and services | $18.92 | General |
| Category: NEUROSCIENCE | ||||||
| 01/07/2022 | Allergan, Inc. | BOTOX (Biological) | Food and Beverage | In-kind items and services | $16.43 | General |
| Category: FACIAL AESTHETICS | ||||||
| 12/08/2021 | Allergan, Inc. | BOTOX (Biological) | Food and Beverage | In-kind items and services | $13.39 | General |
| Category: FACIAL AESTHETICS | ||||||
| 10/28/2021 | Allergan, Inc. | BOTOX (Biological) | Food and Beverage | In-kind items and services | $16.04 | General |
| Category: FACIAL AESTHETICS | ||||||
| 09/25/2021 | Allergan, Inc. | BOTOX (Biological) | Food and Beverage | In-kind items and services | $12.50 | General |
| Category: HYPERHYDROSIS | ||||||
| 09/21/2021 | Allergan, Inc. | BOTOX (Biological) | Food and Beverage | In-kind items and services | $11.17 | General |
| Category: FACIAL AESTHETICS | ||||||
| 11/28/2017 | Stryker Corporation | Allograft (Device) | Food and Beverage | Cash or cash equivalent | $28.50 | General |
| Category: CMF | ||||||
| 11/28/2017 | Stryker Corporation | Variax (Device) | Food and Beverage | Cash or cash equivalent | $28.50 | General |
| Category: TRAUMA & EXTREMITIES | ||||||
| 10/03/2017 | Stryker Corporation | Anchorage (Device), Variax | Food and Beverage | Cash or cash equivalent | $32.40 | General |
| Category: TRAUMA & EXTREMITIES | ||||||
| 09/21/2017 | Stryker Corporation | Axsos (Device) | Food and Beverage | Cash or cash equivalent | $10.00 | General |
| Category: TRAUMA & EXTREMITIES | ||||||
| 09/10/2017 | Stryker Corporation | Variax (Device) | Food and Beverage | Cash or cash equivalent | $42.67 | General |
| Category: TRAUMA & EXTREMITIES | ||||||
| 08/27/2017 | Stryker Corporation | Bio4 (Device) | Food and Beverage | Cash or cash equivalent | $20.20 | General |
| Category: Bone Substitute | ||||||
| 08/11/2017 | Stryker Corporation | Variax (Device) | Food and Beverage | Cash or cash equivalent | $16.57 | General |
| Category: TRAUMA & EXTREMITIES | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 5 | 79 | 101 | $63,806 | $9,282 |
| 2022 | 4 | 93 | 139 | $83,881 | $10,786 |
| 2021 | 3 | 76 | 121 | $66,525 | $10,129 |
| 2020 | 4 | 74 | 152 | $64,720 | $11,550 |
All Medicare Procedures & Services
16 procedure records from CMS Medicare Utilization
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 12 | 25 | $14,075 | $2,699 | 19.2% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2023 | 24 | 30 | $20,378 | $2,104 | 10.3% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2023 | 16 | 16 | $16,918 | $2,086 | 12.3% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 14 | 15 | $9,240 | $1,765 | 19.1% |
| 95886 | Needle measurement of electrical activity in arm or leg muscles, complete study | Facility | 2023 | 13 | 15 | $3,195 | $628.05 | 19.7% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2022 | 40 | 54 | $35,305 | $4,442 | 12.6% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2022 | 27 | 33 | $33,288 | $3,436 | 10.3% |
| 99232 | Follow-up hospital inpatient care per day, typically 25 minutes | Facility | 2022 | 11 | 36 | $11,880 | $2,247 | 18.9% |
| 95886 | Needle measurement of electrical activity in arm or leg muscles, complete study | Facility | 2022 | 15 | 16 | $3,408 | $660.18 | 19.4% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2021 | 22 | 67 | $22,177 | $4,303 | 19.4% |
| 99215 | Established patient outpatient visit, total time 40-54 minutes | Facility | 2021 | 32 | 32 | $29,536 | $4,077 | 13.8% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Facility | 2021 | 22 | 22 | $14,812 | $1,749 | 11.8% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2020 | 31 | 109 | $35,534 | $7,151 | 20.1% |
| 99223 | Initial hospital inpatient care, typically 70 minutes per day | Facility | 2020 | 17 | 17 | $15,538 | $3,038 | 19.6% |
| 99238 | Hospital discharge day management, 30 minutes or less | Facility | 2020 | 12 | 12 | $3,960 | $808.44 | 20.4% |
| 99215 | Established patient office or other outpatient, visit typically 40 minutes | Facility | 2020 | 14 | 14 | $9,688 | $552.16 | 5.7% |
About Dr. William Corn, MD
Dr. William Corn, MD is a Neurological Surgery healthcare provider based in San Francisco, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 05/24/2006. The National Provider Identifier (NPI) number assigned to this provider is 1962457903.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. William Corn, MD has received a total of $280.79 in payments from pharmaceutical and medical device companies, with $13.50 received in 2024. These payments were reported across 14 transactions from 3 companies. The most common payment nature is "Food and Beverage" ($280.79).
As a Medicare-enrolled provider, Corn has provided services to 322 Medicare beneficiaries, totaling 513 services with total Medicare billing of $41,747. Data is available for 4 years (2020–2023), covering 16 distinct procedure/service records.
Practice Information
- Specialty Neurological Surgery
- Other Specialties Neurology
- Location San Francisco, CA
- Active Since 05/24/2006
- Last Updated 09/11/2025
- Taxonomy Code 207T00000X
- Entity Type Individual
- NPI Number 1962457903
Products in Payments
- BOTOX (Biological) $101.95
- Variax (Device) $87.74
- Anchorage (Device) $32.40
- Allograft (Device) $28.50
- Bio4 (Device) $20.20
- Axsos (Device) $10.00
Explore
Data Sources
Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.
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