Total Payments
$316.14
2024 Payments
$129.41
Companies
6
Transactions
8
Medicare Patients
2,704
Medicare Billing
$537,533
Payment Breakdown by Category
Food & Beverage$316.14 (100.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $316.14 | 8 | 100.0% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Amgen Inc. | $129.41 | 1 | $0 (2024) |
| Janssen Pharmaceuticals, Inc | $78.89 | 1 | $0 (2023) |
| PFIZER INC. | $35.27 | 2 | $0 (2019) |
| Merck Sharp & Dohme Corporation | $29.03 | 2 | $0 (2019) |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $21.87 | 1 | $0 (2019) |
| AstraZeneca Pharmaceuticals LP | $21.67 | 1 | $0 (2019) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $129.41 | 1 | Amgen Inc. ($129.41) |
| 2023 | $78.89 | 1 | Janssen Pharmaceuticals, Inc ($78.89) |
| 2019 | $93.12 | 5 | PFIZER INC. ($35.27) |
| 2017 | $14.72 | 1 | Merck Sharp & Dohme Corporation ($14.72) |
All Payment Transactions
8 individual payment records from CMS Open Payments
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 06/20/2024 | Amgen Inc. | TAVNEOS (Drug) | Food and Beverage | In-kind items and services | $129.41 | General |
| Category: Inflammation | ||||||
| 03/09/2023 | Janssen Pharmaceuticals, Inc | XARELTO (Drug) | Food and Beverage | In-kind items and services | $78.89 | General |
| Category: Cardiovascular & Metabolism | ||||||
| 06/26/2019 | PFIZER INC. | ELIQUIS (Drug), VYNDAQEL | Food and Beverage | In-kind items and services | $21.52 | General |
| Category: CARDIOVASCULAR;METABOLIC DISEASE | ||||||
| 05/22/2019 | AstraZeneca Pharmaceuticals LP | BRILINTA (Drug) | Food and Beverage | In-kind items and services | $21.67 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 02/20/2019 | Boehringer Ingelheim Pharmaceuticals, Inc. | — | Food and Beverage | In-kind items and services | $21.87 | General |
| 02/14/2019 | Merck Sharp & Dohme Corporation | ZERBAXA (Drug) | Food and Beverage | In-kind items and services | $14.31 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 01/30/2019 | PFIZER INC. | CHANTIX (Drug), ELIQUIS | Food and Beverage | In-kind items and services | $13.75 | General |
| Category: NEUROSCIENCE;TOBACCO DEPENDENCE | ||||||
| 10/26/2017 | Merck Sharp & Dohme Corporation | PNEUMOVAX 23 (Biological) | Food and Beverage | In-kind items and services | $14.72 | General |
| Category: VACCINE | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 11 | 794 | 1,613 | $408,529 | $150,081 |
| 2022 | 10 | 543 | 1,249 | $316,812 | $106,348 |
| 2021 | 10 | 518 | 1,264 | $278,117 | $107,686 |
| 2020 | 14 | 849 | 2,203 | $533,807 | $173,418 |
Total Patients
2,704
Total Services
6,329
Medicare Billing
$537,533
Procedure Codes
46
All Medicare Procedures & Services
46 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Facility | 2023 | 172 | 528 | $101,376 | $49,725 | 49.0% |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | Facility | 2023 | 157 | 528 | $76,053 | $33,318 | 43.8% |
| 99305 | Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Facility | 2023 | 108 | 124 | $33,728 | $14,504 | 43.0% |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Facility | 2023 | 74 | 76 | $26,220 | $12,453 | 47.5% |
| 99310 | Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Facility | 2023 | 50 | 73 | $20,440 | $9,949 | 48.7% |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 55 | 77 | $45,332 | $8,121 | 17.9% |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 52 | 54 | $56,235 | $7,909 | 14.1% |
| 99316 | Nursing facility discharge management, more than 30 minutes | Facility | 2023 | 51 | 55 | $12,155 | $6,391 | 52.6% |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Facility | 2023 | 21 | 43 | $16,889 | $2,995 | 17.7% |
| 99239 | Hospital discharge day management, more than 30 minutes | Facility | 2023 | 24 | 25 | $15,481 | $2,573 | 16.6% |
| 99315 | Nursing facility discharge day management, 30 minutes or less | Facility | 2023 | 30 | 30 | $4,620 | $2,143 | 46.4% |
| 99309 | Follow-up nursing facility visit per day, typically 25 minutes | Facility | 2022 | 119 | 387 | $74,613 | $30,937 | 41.5% |
| 99308 | Follow-up nursing facility visit per day, typically 15 minutes | Facility | 2022 | 111 | 514 | $74,016 | $29,553 | 39.9% |
| 99306 | Initial nursing facility visit per day, typically 45 minutes | Facility | 2022 | 96 | 105 | $37,905 | $15,092 | 39.8% |
| 99223 | Initial hospital inpatient care per day, typically 70 minutes | Facility | 2022 | 80 | 83 | $80,030 | $13,817 | 17.3% |
| 99310 | Follow-up nursing facility visit per day, typically 35 minutes | Facility | 2022 | 23 | 43 | $12,040 | $5,175 | 43.0% |
| 99305 | Initial nursing facility visit per day, typically 35 minutes | Facility | 2022 | 38 | 40 | $10,880 | $4,601 | 42.3% |
| 99220 | Initial hospital observation care per day, typically 70 minutes | Facility | 2022 | 15 | 15 | $12,101 | $2,299 | 19.0% |
| 99316 | Nursing facility discharge management, more than 30 minutes | Facility | 2022 | 23 | 23 | $5,437 | $2,114 | 38.9% |
| 99233 | Follow-up hospital inpatient care per day, typically 35 minutes | Facility | 2022 | 13 | 13 | $5,418 | $1,112 | 20.5% |
| 99315 | Nursing facility discharge day management, 30 minutes or less | Facility | 2022 | 14 | 14 | $2,644 | $908.00 | 34.3% |
| 99308 | Follow-up nursing facility visit per day, typically 15 minutes | Office | 2022 | 11 | 12 | $1,728 | $740.28 | 42.8% |
| 99309 | Subsequent nursing facility visit, typically 25 minutes per day | Facility | 2021 | 111 | 400 | $76,800 | $32,448 | 42.2% |
| 99308 | Subsequent nursing facility visit, typically 15 minutes per day | Facility | 2021 | 113 | 516 | $74,304 | $30,611 | 41.2% |
| 99306 | Initial nursing facility visit, typically 45 minutes per day | Facility | 2021 | 97 | 115 | $39,675 | $17,316 | 43.6% |
About Dr. Darby Clayson, MD
Dr. Darby Clayson, MD is a Military Health Care Provider healthcare provider based in Daly City, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 11/03/2005. The National Provider Identifier (NPI) number assigned to this provider is 1619968021.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Darby Clayson, MD has received a total of $316.14 in payments from pharmaceutical and medical device companies, with $129.41 received in 2024. These payments were reported across 8 transactions from 6 companies. The most common payment nature is "Food and Beverage" ($316.14).
As a Medicare-enrolled provider, Clayson has provided services to 2,704 Medicare beneficiaries, totaling 6,329 services with total Medicare billing of $537,533. Data is available for 4 years (2020–2023), covering 46 distinct procedure/service records.
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Practice Information
- Specialty Military Health Care Provider
- Other Specialties Internal Medicine, Internal Medicine
- Location Daly City, CA
- Active Since 11/03/2005
- Last Updated 12/04/2019
- Taxonomy Code 171000000X
- Entity Type Individual
- Practice Solo Practitioner
- NPI Number 1619968021
Products in Payments
- TAVNEOS (Drug) $129.41
- XARELTO (Drug) $78.89
- BRILINTA (Drug) $21.67
- ELIQUIS (Drug) $21.52
- PNEUMOVAX 23 (Biological) $14.72
- ZERBAXA (Drug) $14.31
- CHANTIX (Drug) $13.75
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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.