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 |
|---|---|---|---|
| CAROLINE HUANG | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | VA | 4 |
| CAROLINE MAULDIN | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | TN | 2 |
| CAROLYN MEEKYUNG MANHART | Allopathic & Osteopathic Physicians|Internal Medicine | NE | 3 |
| CAROLYN TURNER LAWSON | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | GA | 1 |
| CARRIE A PARRISH NYEKAN | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | KY | 4 |
| CARRIE B WALLACE | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | TN | 4 |
| CARSON WOMACK | Allopathic & Osteopathic Physicians|Internal Medicine | GA | 2 |
| CARYN BORGER | — | NJ | 2 |
| CASEY J PAGE | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TN | 3 |
| CASEY L VLACH | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NE | 1 |
| CATHERINE ANASTASOPOULOU | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | PA | 13 |
| CATHERINE B MENSAH | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | OH | 1 |
| CATHERINE BYERS HEFNER | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NC | 7 |
| CATHERINE PIHOKER | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology | WA | 1 |
| CATHERINE SEKANSKY | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical | NY | 3 |
| CATHERINE WILLIAM FALTAOS EKLADIOS | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | CA | 2 |
| CATHLEEN L MURPHY DUFFY | Allopathic & Osteopathic Physicians|Family Medicine | OH | 2 |
| CATHLEEN M FURRY | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | VA | 1 |
| CESAR M PLAZAS-GUZMAN | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | VA | 1 |
| CHAITANYA KUMAR MAMILLAPALLI | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | IL | 1 |
| CHAMPALAL GUPTA | Allopathic & Osteopathic Physicians|Internal Medicine | WI | 1 |
| CHANDANA MISHRA | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | AZ | 1 |
| CHANG LU | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology | MA | 1 |
| CHARALAMBOS DEMETRI | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NC | 8 |
| CHARITY WAMBUI NYUGUTO | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | IL | 6 |
| CHARLAINE I WILLIAMSON | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | CA | 1 |
| CHARLES AMPADU | Allopathic & Osteopathic Physicians|Internal Medicine | IL | 5 |
| CHARLES C FARMER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | GA | 2 |
| CHARLES J DELGIORNO | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | NJ | 11 |
| CHARLES R YOUNG | Podiatric Medicine & Surgery Service Providers|Podiatrist | MI | 1 |
| CHARLOTTE L CREECH | Allopathic & Osteopathic Physicians|Family Medicine | NY | 1 |
| CHARULATA SESHADRI | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care | TX | 1 |
| CHELSEA A SNYDER | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | NY | 1 |
| CHELSEA ZIMMERMAN | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology | AL | 3 |
| CHERISH C HOLT | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | TN | 4 |
| CHERYL A HERMAN | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | PA | 1 |
| CHERYL A KOCH | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | PA | 8 |
| CHET MONDER | — | AZ | 1 |
| CHETANBABU PATEL | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology | AZ | 6 |
| CHI TANG | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | CT | 3 |
| CHIH C CHANG | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | IN | 1 |
| CHIRAG SHAH | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | GA | 1 |
| CHRIS THOMAS ALEXANDER | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | TX | 2 |
| CHRISTINA ALENE PALMER | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | KS | 2 |
| CHRISTINA COLLEEN BEARDEN | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care | MO | 2 |
| CHRISTINA G GO | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | VA | 2 |
| CHRISTINA M FAST | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | NE | 2 |
| CHRISTINA M MILLER | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | AZ | 1 |
| CHRISTINA MARIE JELEN | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | CA | 2 |
| CHRISTINA TERRI DIMECH | Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism | WV | 1 |