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
EMILY DAVIS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CT $17.57
EMILY DAVYDOV Allopathic & Osteopathic Physicians|Internal Medicine MI $22.20
EMILY E HUNT Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $70.82
EMILY GEISER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family AZ $86.21
EMILY LENA PIALA Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CO $115.78
EMILY MARIE BORSELLINO Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical IL $17.89
EMILY MOWER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OR $20.47
EMILY P NEELY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $122.02
EMILY R MARTIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $83.55
EMILY SILVERMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $30.92
EMILY T VEENEMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IN $16.90
EMMA JANE CONROY Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NY $42.58
EMMA REEVE Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical AZ $66.75
EMYLEE MORGAN BROWN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NC $68.39
ENIKI A MACK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $20.99
ENRRIQUE MAYES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family LA $37.39
ERA S SHAH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $46.15
ERENDIRA ODLE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner IN $18.76
ERIC A ORZECK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $18.55
ERIC C BUXTON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $17.83
ERIC HORST SC $14.52
ERIC JASON SHIFFRIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $86.86
ERIC O GYURICSKO Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology VA $14.02
ERICA BROOKE EIDSON Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant GA $45.14
ERICA E HIGHTOWER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $84.08
ERICA H FORBES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner MI $24.63
ERICA J FRISCH Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OH $40.26
ERICA L CRESS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical PA $37.81
ERICA ZARSE Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology MO $52.66
ERIKA JEAN HORNER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical OR $22.53
ERIKA MACLIN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TN $16.41
ERIN COLLEEN MCDONOUGH-MAYO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family PA $159.28
ERIN E PERRONE Allopathic & Osteopathic Physicians|Surgery|Pediatric Surgery MI $18.38
ERIN HENRY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $73.43
ERIN HUGHES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family OH $19.22
ERIN M STANSBURY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family SD $19.90
ERIN MARIE JAKOVAC Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner MI $14.62
ERIN MICHELLE HELTON Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OR $22.53
ERIN RICE FICK Allopathic & Osteopathic Physicians|Internal Medicine MO $21.96
ERNEST J FOX Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant AZ $19.17
ERNEST WILLIAM BEASLEY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $46.15
ERNESTO J BLANCO Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology FL $14.29
ERYN L BERRY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $33.32
ESTHER KRUG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $30.36
EUGENIO ANGUEIRA-SERRANO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $162.02
EUN JUNG KIM Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $56.49
EVA TOTH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $417.79
EVANGELINE FRIEDBAUM Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OR $22.52
EVELYN JAVIER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ $14.33
EVELYN OLUOHA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA $20.23