Amphastar Pharmaceuticals, Inc.
2,111 providers listed 4,872 records General Payments
General Payments — all loaded program years
- 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.
Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.
Coverage: program years 2019–2025, General Payments only, reported to physicians and non-physician practitioners. Payments to teaching hospitals are not included. Each figure is labeled with its category and program year; categories are never combined.
By program year
| Program year | Reported | Records | Providers | Detail |
|---|---|---|---|---|
| PY2022 | $650.00 | 1 | 1 | This company in PY2022 → |
| PY2023 | $18,317.68 | 248 | 225 | This company in PY2023 → |
| PY2024 | $41,335.88 | 2,161 | 1,339 | This company in PY2024 → |
| PY2025 | $46,730.86 | 2,462 | 1,237 | This company in PY2025 → |
By recipient specialty (68)
Sorted by name; identical names by identifier.
Allopathic & Osteopathic Physicians 48 specialties 1,259 providers
- Allergy & Immunology · Allergy 1
- Anesthesiology 2
- Colon & Rectal Surgery 1
- Emergency Medicine 2
- Emergency Medicine · Emergency Medical Services 2
- Family Medicine 135
- Family Medicine · Geriatric Medicine 1
- General Practice 10
- Hospitalist 5
- Internal Medicine 190
- Internal Medicine · Cardiovascular Disease 4
- Internal Medicine · Endocrinology, Diabetes & Metabolism 687
- Internal Medicine · Gastroenterology 1
- Internal Medicine · Geriatric Medicine 3
- Internal Medicine · Infectious Disease 1
- Internal Medicine · Interventional Cardiology 1
- Internal Medicine · Nephrology 6
- Internal Medicine · Pulmonary Disease 6
- Internal Medicine · Rheumatology 4
- Internal Medicine · Sports Medicine 1
- Internal Medicine · Transplant Hepatology 1
- Nuclear Medicine 1
- Obstetrics & Gynecology 3
- Obstetrics & Gynecology · Gynecologic Oncology 1
- Ophthalmology 1
- Orthopaedic Surgery 1
- Otolaryngology 1
- Pain Medicine · Interventional Pain Medicine 1
- Pathology · Anatomic Pathology & Clinical Pathology 1
- Pediatrics 59
- Pediatrics · Adolescent Medicine 1
- Pediatrics · Developmental - Behavioral Pediatrics 1
- Pediatrics · Pediatric Cardiology 1
- Pediatrics · Pediatric Critical Care Medicine 1
- Pediatrics · Pediatric Endocrinology 98
- Pediatrics · Pediatric Gastroenterology 7
- Pediatrics · Pediatric Hematology-Oncology 1
- Pediatrics · Pediatric Infectious Diseases 1
- Pediatrics · Pediatric Rheumatology 1
- Physical Medicine & Rehabilitation 1
- Plastic Surgery 1
- Psychiatry & Neurology · Neurology 4
- Psychiatry & Neurology · Neurology with Special Qualifications in Child Neurology 2
- Psychiatry & Neurology · Psychiatry 2
- Radiology · Diagnostic Radiology 1
- Surgery 1
- Surgery · Pediatric Surgery 1
- Urology · Urogynecology and Reconstructive Pelvic Surgery 1
Nursing Service Providers 3 specialties 3 providers
Physician Assistants & Advanced Practice Nursing Providers 16 specialties 805 providers
- Clinical Nurse Specialist 2
- Clinical Nurse Specialist · Adult Health 3
- Nurse Practitioner 118
- Nurse Practitioner · Acute Care 12
- Nurse Practitioner · Adult Health 44
- Nurse Practitioner · Family 332
- Nurse Practitioner · Gerontology 8
- Nurse Practitioner · Obstetrics & Gynecology 1
- Nurse Practitioner · Pediatrics 42
- Nurse Practitioner · Pediatrics, Critical Care 1
- Nurse Practitioner · Primary Care 25
- Nurse Practitioner · Psychiatric/Mental Health 2
- Nurse Practitioner · Women's Health 2
- Physician Assistant 155
- Physician Assistant · Medical 54
- Physician Assistant · Surgical 4
Podiatric Medicine & Surgery Service Providers 1 specialty 3 providers
Providers listed (2,111)
Sorted by name; identical names by identifier.
| Provider | Specialty | State | Records reported by this company |
|---|---|---|---|
| JUAN A ESTIGARRIBIA | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | MI | 1 |
| JUAN MEDAURA | Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology | LA | 1 |
| JUANITA RAMONA GAINES | Allopathic & Osteopathic Physicians|Internal Medicine | OH | 1 |
| JUDYTH VALERA | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | NJ | 1 |
| JULI MICKELLE DYER | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | GA | 1 |
| JULIA E KELLEY | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | WA | 1 |
| JULIA FAYE MURPHY | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical | CA | 18 |
| JULIA NYAWIRA GITAU | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | AZ | 1 |
| JULIA SADLO | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | KY | 1 |
| JULIANA J MATTHEWS | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TN | 1 |
| JULIANA M VERA ORTIZ | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology | GA | 2 |
| JULIE A BAUER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | FL | 2 |
| JULIE A TEWES | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | KY | 1 |
| JULIE CORTES | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | CA | 3 |
| JULIE CROUSE | Nursing Service Providers|Registered Nurse|Emergency | CA | 1 |
| JULIE R WHETSTONE | Allopathic & Osteopathic Physicians|Family Medicine | OH | 1 |
| JULIE SINGH | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NJ | 2 |
| JULIETTE J NWACHUKWU | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NY | 2 |
| JUSTIN C WHITE | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NY | 1 |
| JUSTIN ROCHA | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical | OR | 3 |
| JUSTIN THOMAS HEWLETT | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | UT | 4 |
| KACIE DEE DOYLE-DELGADO | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | UT | 1 |
| KAILIE SAGE DUGGER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | AZ | 1 |
| KAITLYN COLLINS | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | MI | 1 |
| KAITLYN R ROSALES | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | IL | 2 |
| KAITLYN SARAYA LANDIS | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | TN | 3 |
| KAITLYN TUCKER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | KY | 1 |
| KALPANA REDDY | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NY | 13 |
| KANISHA DESAI | Allopathic & Osteopathic Physicians|Internal Medicine | PA | 1 |
| KAPIL CHATRATH | Allopathic & Osteopathic Physicians|Internal Medicine | NY | 2 |
| KARA D BRUNING | Allopathic & Osteopathic Physicians|Pediatrics | SD | 1 |
| KARA M MEINKE BAEHR | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NE | 1 |
| KAREN D LAURICELLA | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | NY | 1 |
| KAREN F GIARDINO | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NY | 3 |
| KAREN K BERRIS | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | MI | 1 |
| KAREN KIM | Allopathic & Osteopathic Physicians|Internal Medicine | CA | 1 |
| KAREN M GROSS | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health | MO | 2 |
| KARIN HICKEY | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | CO | 2 |
| KARISHMA DOSHI | — | MI | 1 |
| KARLA S MCHUGHES | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | TX | 1 |
| KARMELL J MACORETTA | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health | NY | 1 |
| KAROL S POHLMAN REJMAN | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NY | 4 |
| KAROLINA ELLARD ANDERSON | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TN | 3 |
| KASEY JOYAL COYNE | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | IL | 1 |
| KASHIF LATIF | — | TN | 2 |
| KATALIN HORVATH | Allopathic & Osteopathic Physicians|Internal Medicine | NJ | 1 |
| KATELYN NELL PARR | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | MD | 2 |
| KATELYN SIANO | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | UT | 3 |
| KATERINA K HARWOOD | Allopathic & Osteopathic Physicians|Pediatrics | NJ | 2 |
| KATERYNA KOMAROVSKIY | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TX | 3 |