Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · PY2022–2025 Search official records Methodology

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

Program yearReportedRecordsProviders
PY2022 $650.00 1 1
PY2023 $18,317.68 248 225
PY2024 $41,335.88 2,161 1,339
PY2025 $46,730.86 2,462 1,237

By recipient specialty (25 shown)

Sorted by reported total.

SpecialtyReportedRecordsProviders
Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism $34,332.81 1,837 687
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical $17,068.36 164 54
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family $13,783.64 743 332
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant $6,757.80 328 155
Allopathic & Osteopathic Physicians|Internal Medicine $6,356.35 306 190
Allopathic & Osteopathic Physicians|Family Medicine $5,684.30 307 135
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner $5,308.80 270 118
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology $5,246.63 278 98
Allopathic & Osteopathic Physicians|Pediatrics $1,932.62 103 59
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health $1,879.09 98 44
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics $1,708.44 90 42
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care $981.98 54 25
Allopathic & Osteopathic Physicians|Otolaryngology $650.00 1 1
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care $428.20 26 12
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Gastroenterology $402.41 20 7
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology $400.78 25 8
Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease $343.09 18 4
Allopathic & Osteopathic Physicians|General Practice $240.16 12 10
Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease $146.56 8 6
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical $137.65 7 4
Allopathic & Osteopathic Physicians|Hospitalist $127.20 7 5
Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology $122.63 7 6
Podiatric Medicine & Surgery Service Providers|Podiatrist $111.42 6 3
Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology $88.53 5 4
Allopathic & Osteopathic Physicians|Allergy & Immunology|Allergy $81.44 4 1

Providers listed (2,111)

Sorted by name. Sort by amount instead

ProviderSpecialtyStateReported by this company
JUAN A ESTIGARRIBIA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $18.63
JUAN MEDAURA Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology LA $15.72
JUANITA RAMONA GAINES Allopathic & Osteopathic Physicians|Internal Medicine OH $20.06
JUDYTH VALERA Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NJ $14.89
JULI MICKELLE DYER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $24.12
JULIA E KELLEY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner WA $19.22
JULIA FAYE MURPHY Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical CA $201.93
JULIA NYAWIRA GITAU Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner AZ $14.52
JULIA SADLO Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant KY $16.91
JULIANA J MATTHEWS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $19.88
JULIANA M VERA ORTIZ Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology GA $44.95
JULIE A BAUER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $40.74
JULIE A TEWES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner KY $18.14
JULIE CORTES Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $58.47
JULIE CROUSE Nursing Service Providers|Registered Nurse|Emergency CA $19.62
JULIE R WHETSTONE Allopathic & Osteopathic Physicians|Family Medicine OH $19.22
JULIE SINGH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $34.33
JULIETTE J NWACHUKWU Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $39.94
JUSTIN C WHITE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $20.15
JUSTIN ROCHA Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical OR $65.65
JUSTIN THOMAS HEWLETT Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant UT $78.12
KACIE DEE DOYLE-DELGADO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family UT $19.43
KAILIE SAGE DUGGER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $17.70
KAITLYN COLLINS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MI $24.75
KAITLYN R ROSALES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IL $36.43
KAITLYN SARAYA LANDIS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TN $43.92
KAITLYN TUCKER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism KY $16.91
KALPANA REDDY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $237.23
KANISHA DESAI Allopathic & Osteopathic Physicians|Internal Medicine PA $19.73
KAPIL CHATRATH Allopathic & Osteopathic Physicians|Internal Medicine NY $31.98
KARA D BRUNING Allopathic & Osteopathic Physicians|Pediatrics SD $18.88
KARA M MEINKE BAEHR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NE $23.28
KAREN D LAURICELLA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner NY $20.15
KAREN F GIARDINO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $57.50
KAREN K BERRIS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $18.38
KAREN KIM Allopathic & Osteopathic Physicians|Internal Medicine CA $22.11
KAREN M GROSS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health MO $34.78
KARIN HICKEY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CO $74.57
KARISHMA DOSHI MI $17.83
KARLA S MCHUGHES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $18.52
KARMELL J MACORETTA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health NY $24.75
KAROL S POHLMAN REJMAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $82.11
KAROLINA ELLARD ANDERSON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $62.29
KASEY JOYAL COYNE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $16.71
KASHIF LATIF TN $40.41
KATALIN HORVATH Allopathic & Osteopathic Physicians|Internal Medicine NJ $14.33
KATELYN NELL PARR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MD $47.92
KATELYN SIANO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family UT $62.62
KATERINA K HARWOOD Allopathic & Osteopathic Physicians|Pediatrics NJ $32.34
KATERYNA KOMAROVSKIY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $54.42