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
KEVIN E TOURT Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY $20.14
KEVIN HAZARD Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $15.53
KEVIN JONATHAN DONOHUE Allopathic & Osteopathic Physicians|Internal Medicine VA $124.26
KEVIN L KONZEN Allopathic & Osteopathic Physicians|Internal Medicine MO $17.33
KEVIN ROBERT SORIANO REYLADO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care NJ $13.57
KEWA LI Allopathic & Osteopathic Physicians|Internal Medicine OH $94.51
KHAJA ASADULLAH Allopathic & Osteopathic Physicians|Internal Medicine|Geriatric Medicine IL $21.93
KHALDOUN M AL RAYESS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism UT $34.43
KHARY EDWARDS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CT $66.88
KHUSBU PATEL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology GA $34.10
KILEY FERER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OH $27.96
KIM GIORDANO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner NJ $16.09
KIMBERLEE J BRONTSEMA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $33.47
KIMBERLEY J PHILIP Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health FL $25.75
KIMBERLY ANN MCCLURE Allopathic & Osteopathic Physicians|Family Medicine MO $34.33
KIMBERLY CHANNEL MCCLAIN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care NC $15.20
KIMBERLY HAIRE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $13.36
KIMBERLY J ADAMSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics MA $33.28
KIMBERLY M SILVERMAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical NY $21.27
KIMBERLY MICHELLE JONES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TX $45.99
KIMBERLY NAVARRO Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $77.45
KIMBERLY NICOLE EVANS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $15.80
KIMBERLY SCANLON Allopathic & Osteopathic Physicians|Family Medicine IL $22.12
KIMBERLY WALLACH Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY $14.21
KIMBERLY YUE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NJ $32.52
KIMBRA L JOYCE Allopathic & Osteopathic Physicians|Family Medicine OH $27.16
KIRTI MALHOTRA Allopathic & Osteopathic Physicians|Internal Medicine MD $45.43
KOMAL MEHTA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $48.58
KOMAL R PATEL Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NC $23.45
KONSTANTIN A KHLUDENEV Allopathic & Osteopathic Physicians|Internal Medicine MD $16.85
KORI WILLIAMS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care CA $75.91
KORTNI KILGORE GA $15.04
KORY JOSEPHINE WELLS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MI $17.54
KRISHDEEP KHOSLA Allopathic & Osteopathic Physicians|Internal Medicine IL $64.08
KRISTA DAWN PATEFIELD Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NE $23.28
KRISTEN RIDER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MO $91.04
KRISTIN DICK Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care NJ $13.73
KRISTIN M LUKE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $22.86
KRISTIN NICOLE HILL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $17.21
KRISTIN S BLACK Allopathic & Osteopathic Physicians|Family Medicine SC $46.53
KRISTIN WEIDLE Allopathic & Osteopathic Physicians|Family Medicine MO $16.96
KRISTINA MARIE ETHERIDGE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $15.98
KRISTINE K GRDINOVAC Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism KS $14.03
KRISTY A VENTURA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $14.21
KRISTY SOLIS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NV $115.56
KRUTI M SHAH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism OH $46.04
KRUTI PATEL Allopathic & Osteopathic Physicians|Internal Medicine TX $31.16
KRYSTAL ANGELI AQUINO VALDEZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $42.63
KSHAMA KESHAVA BHAT Allopathic & Osteopathic Physicians|Family Medicine WI $22.72
KUMAR RAMDAS Allopathic & Osteopathic Physicians|Internal Medicine NJ $18.96