Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published PY2022–2024 Search official records Methodology

Amphastar Pharmaceuticals, Inc.

1,440 providers listed $60,303.56 reported 2,410 records General Payments

General Payments reported — all loaded program years

$60,303.56

  • Category: General Payments
  • Program years: 2022, 2023, 2024
  • Record count: 2,410
  • Providers listed: 1,440

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How this figure is calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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 2018–2024, General Payments only. Each figure is labeled with its category and program year; categories are never combined.

By program year

Program yearReportedRecordsProviders
PY2022 $650.00 1 1
PY2023 $18,317.68 248 225
PY2024 $41,335.88 2,161 1,339

By recipient specialty (25 shown)

Sorted by reported total.

SpecialtyReportedRecordsProviders
Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism $17,208.87 931 497
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical $15,628.26 80 39
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family $6,733.95 361 221
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant $3,331.92 156 95
Allopathic & Osteopathic Physicians|Internal Medicine $3,291.03 153 115
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology $2,707.51 143 74
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner $2,689.06 139 84
Allopathic & Osteopathic Physicians|Family Medicine $2,198.87 120 81
Allopathic & Osteopathic Physicians|Pediatrics $1,112.62 57 41
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics $991.43 53 33
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health $680.16 38 26
Allopathic & Osteopathic Physicians|Otolaryngology $650.00 1 1
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care $524.18 29 19
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care $226.41 14 9
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology $178.77 11 7
Allopathic & Osteopathic Physicians|Hospitalist $161.88 9 7
Allopathic & Osteopathic Physicians|General Practice $115.83 6 6
Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease $108.13 6 3
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Gastroenterology $87.18 5 5
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical $55.20 3 2
Allopathic & Osteopathic Physicians|Pediatrics|Developmental - Behavioral Pediatrics $51.04 3 1
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology $50.35 3 3
Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease $49.71 3 3
Podiatric Medicine & Surgery Service Providers|Podiatrist $44.32 3 1
Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology $42.58 3 2

Providers listed (1,440)

Sorted by name. Sort by amount instead

ProviderSpecialtyStateReported by this company
CAITLYN FRANTZ Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care OH $21.77
CAITLYN MICHELLE GREENE Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant GA $46.16
CALEB C JOHNSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family UT $16.94
CALLI TRISTAN NEWMAN BRODY Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical CO $42.41
CAMELIA L SALANTA Allopathic & Osteopathic Physicians|Family Medicine MI $19.64
CAMERON SLIFE Allopathic & Osteopathic Physicians|Obstetrics & Gynecology NE $17.82
CANDY HSIN-CHIEH STRINGER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NC $23.45
CARISSE M ORSI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology TX $18.93
CARL COSTANZA Allopathic & Osteopathic Physicians|Internal Medicine NJ $13.38
CARLA L HUDSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner AL $24.61
CARLA M FERRISE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner MI $68.65
CARLOS ALEXANDER ANDERSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TN $45.77
CARLOS ARAUZ PACHECO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $40.86
CARLOS PACHECO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $20.46
CARMEN BUSTAMANTE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family FL $17.96
CARMEN ELIZABETH ADDINGTON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $24.68
CARMEN LUCIA BUSTAMANTE ESCOBAR Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology FL $24.91
CARMEN MARIA RENNA Allopathic & Osteopathic Physicians|Internal Medicine NJ $17.60
CAROL MICHELLE WIESNER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $18.94
CAROLINA MARIA DE ALMAGRO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family FL $38.36
CAROLINE HUANG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism VA $72.20
CAROLINE MAULDIN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $31.50
CAROLYN MEEKYUNG MANHART Allopathic & Osteopathic Physicians|Internal Medicine NE $19.26
CAROLYN TURNER LAWSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $18.14
CARRIE A PARRISH NYEKAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family KY $38.19
CARRIE B WALLACE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TN $45.79
CARYN BORGER NJ $30.68
CASEY J PAGE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $56.87
CASEY L VLACH Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NE $17.88
CATHERINE ANASTASOPOULOU Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $111.60
CATHERINE BYERS HEFNER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NC $70.20
CATHERINE PIHOKER Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology WA $21.74
CATHERINE SEKANSKY Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NY $63.65
CATHERINE WILLIAM FALTAOS EKLADIOS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $13.90
CATHLEEN L MURPHY DUFFY Allopathic & Osteopathic Physicians|Family Medicine OH $14.15
CATHLEEN M FURRY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family VA $16.87
CESAR M PLAZAS-GUZMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism VA $49.07
CHAITANYA KUMAR MAMILLAPALLI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $15.52
CHAMPALAL GUPTA Allopathic & Osteopathic Physicians|Internal Medicine WI $50.69
CHANG LU Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology MA $15.90
CHARALAMBOS DEMETRI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NC $86.75
CHARITY WAMBUI NYUGUTO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IL $65.84
CHARLES AMPADU Allopathic & Osteopathic Physicians|Internal Medicine IL $32.26
CHARLES C FARMER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $44.95
CHARLES J DELGIORNO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $74.37
CHELSEA ZIMMERMAN Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology AL $24.61
CHERISH C HOLT Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TN $34.83
CHERYL A HERMAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant PA $14.10
CHERYL A KOCH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $80.41
CHET MONDER AZ $14.00