Amphastar Pharmaceuticals, Inc.
2,111 providers listed $107,034.42 reported 4,872 records General Payments
General Payments reported — all loaded program years
$107,034.42
- Category: General Payments
- Program years: 2022, 2023, 2024, 2025
- Record count: 4,872
- Providers listed: 2,111
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
- Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.
- Methodology & Data — sourcing, labeling, and limitations.
Coverage: program years 2019–2025, General Payments only. Each figure is labeled with its category and program year; categories are never combined.
By program year
By recipient specialty (25 shown)
Sorted by reported total.
Providers listed (2,111)
Sorted by name. Sort by amount instead
| Provider | Specialty | State | Reported by this company |
|---|---|---|---|
| ROBERT J COOPER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | MA | $17.98 |
| ROBERT J PEARLSTEIN | Allopathic & Osteopathic Physicians|Internal Medicine|Geriatric Medicine | PA | $32.26 |
| ROBERT MICHAEL HOLTRUP | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | OH | $71.69 |
| ROBERT ORTIZ | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NY | $45.53 |
| ROBERT R KIMMEL | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | WA | $14.77 |
| ROBERT RANDAL GEIER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TN | $111.55 |
| ROBERT S BENNETT | Allopathic & Osteopathic Physicians|Pediatrics | NY | $14.97 |
| ROBERT S LIND | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | NJ | $15.93 |
| ROBERT WOZNIAK | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | SC | $34.42 |
| ROBERTA LEE ESCALERA | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | AZ | $84.61 |
| ROBIN BUTCHER | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | TX | $20.93 |
| ROBIN E KILPATRICK | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | LA | $13.13 |
| ROBIN L MORRISON | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | TN | $69.11 |
| ROBIN MAIQUEL VILLATORO | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | CA | $20.23 |
| RODNEY E SNOW | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TN | $81.98 |
| RODNEY E STURGEON | Allopathic & Osteopathic Physicians|Family Medicine | TN | $14.12 |
| RODOLFO B PROTACIO | Allopathic & Osteopathic Physicians|Internal Medicine | CA | $21.23 |
| RODRIGO MD VALDERRAMA | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | AL | $16.51 |
| ROGER GEORGE CARR | Allopathic & Osteopathic Physicians|Internal Medicine | GA | $20.70 |
| ROGER V TORRES | Allopathic & Osteopathic Physicians|Internal Medicine | WI | $31.49 |
| ROHINI SACHDEVA | Allopathic & Osteopathic Physicians|Internal Medicine | OH | $29.92 |
| ROHIT KULKARNI | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NJ | $31.48 |
| ROLA SAAD | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology | AZ | $14.53 |
| ROLANDO C GUEVARRA | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Gastroenterology | NY | $81.46 |
| ROMEU MANUEL AZEVEDO | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | MD | $23.34 |
| RONAK CHAUDHARI | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | KY | $73.75 |
| RONALD WATTS | — | GA | $36.60 |
| ROOHI KAUR SAINI | Allopathic & Osteopathic Physicians|Family Medicine | FL | $23.75 |
| ROOPA ROY | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NJ | $16.94 |
| ROOPA SATHYAPRAKASH | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TX | $37.17 |
| ROSA NIEMI | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | AL | $42.17 |
| ROSALBA MUCCIARELLA | Allopathic & Osteopathic Physicians|Internal Medicine | NY | $35.71 |
| ROSALINDA V PROTACIO | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | CA | $21.23 |
| ROSANNA R NICOLETTI | Allopathic & Osteopathic Physicians|Family Medicine | AZ | $17.34 |
| ROSELYN TORRES RIERA | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | FL | $24.53 |
| ROSEMARIE LAJARA | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TX | $47.61 |
| ROSEMARY MCCABE | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health | NJ | $13.78 |
| ROSHANAK HABIBI | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | AZ | $15.72 |
| ROSILY PHILIP | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NJ | $13.77 |
| ROXANA RODRIGUEZ | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | FL | $20.19 |
| ROY W LANGLEY | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | VA | $37.03 |
| ROZA LISS | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care | MD | $16.85 |
| RUBY FAVELA-PREZAS | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | TX | $40.32 |
| RUBYLYN ROSE HILARIO | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | IL | $96.53 |
| RUDOLF D BUCCI | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NY | $46.23 |
| RUPAL R DESAI | Allopathic & Osteopathic Physicians|Internal Medicine | MD | $17.76 |
| RUPESH K DAVE | Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease | GA | $20.99 |
| RUSHICKAH BROOKS | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | CT | $18.45 |
| RUSSELL KINSHUN FUNG | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | GA | $65.37 |
| RUTH HABTOM WELDEKRISTOS | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care | — | $17.06 |