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
JOHN E ADAMS Allopathic & Osteopathic Physicians|General Practice OH $18.20
JOHN EDWARD LLOYD Allopathic & Osteopathic Physicians|Family Medicine OH $16.97
JOHN GALGANI Allopathic & Osteopathic Physicians|Pediatrics MO $40.38
JOHN GREGORY ZORA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $46.14
JOHN LEONE Allopathic & Osteopathic Physicians|Internal Medicine NY $16.71
JOHN M KAVCIC Allopathic & Osteopathic Physicians|Family Medicine NY $13.81
JOHN N GRIEVESON Allopathic & Osteopathic Physicians|Family Medicine MA $17.55
JOHN N LARRIMER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism OH $21.88
JOHN ROBERT WEBSTER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $13.74
JOHN S BURRELL Allopathic & Osteopathic Physicians|General Practice TN $18.69
JON S RUBRIGHT Allopathic & Osteopathic Physicians|Family Medicine CO $45.24
JONATHAN D SLUSSER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $15.35
JONATHAN G OWNBY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $45.25
JONATHAN HUGO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $28.87
JONATHAN J FILLMORE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CT $47.61
JONATHAN J SICILIA Allopathic & Osteopathic Physicians|Family Medicine NY $24.44
JONATHAN K HUANG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $13.37
JONATHAN LEE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $17.87
JONATHAN PATRICK MCFADDEN Allopathic & Osteopathic Physicians|Internal Medicine OH $14.77
JORDAN BUSHMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $22.19
JORDAN R VERRALL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $27.26
JORGE A VIERA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ $52.30
JORGE LUIS DIEZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CT $45.57
JOSE LINO MONDEJAR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ $17.31
JOSE M MANDRY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $38.62
JOSEFINA GREGORY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NJ $13.63
JOSELITO A BAYLON Allopathic & Osteopathic Physicians|Family Medicine WI $16.72
JOSEPH A BATA Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MI $44.37
JOSEPH AUGUSTINE Allopathic & Osteopathic Physicians|Family Medicine NY $24.45
JOSEPH C BOGNET Allopathic & Osteopathic Physicians|Family Medicine PA $16.57
JOSEPH FRANCIS GIBBONS Allopathic & Osteopathic Physicians|Internal Medicine MD $20.88
JOSEPH GIANGOLA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $61.50
JOSEPH J BRIGNOLA Allopathic & Osteopathic Physicians|Internal Medicine NJ $14.89
JOSEPH KARPEL Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $19.94
JOSEPH LENNARTZ Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health MO $17.28
JOSEPH MICHAEL GONZALEZ-CAMPOY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MN $52.34
JOSEPH P FALCONE Allopathic & Osteopathic Physicians|Orthopaedic Surgery NY $17.86
JOSEPH PATRICK MCTYGUE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NE $23.28
JOSEPH S CERVONE Allopathic & Osteopathic Physicians|Internal Medicine NJ $18.54
JOSEPH T HILGEMAN Allopathic & Osteopathic Physicians|Internal Medicine MO $14.85
JOSEPH VITALE Allopathic & Osteopathic Physicians|Internal Medicine NJ $16.19
JOSEPHINE VU Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA $311.21
JOSHUA BUTLER MS $23.06
JOSHUA D BINEK Allopathic & Osteopathic Physicians|Internal Medicine MO $17.21
JOSHUA E BERNSTEIN Allopathic & Osteopathic Physicians|Internal Medicine NC $20.17
JOSHUA NATHAN BAIN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family AL $65.54
JOSHUA PA WAGENKNECHT Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OH $15.07
JOY ELLEN BOWLING Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MI $61.96
JOY MURPHY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care MO $17.33
JOYCE SHEA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care TN $37.96