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
PETRA GRINNELL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $18.40
PHILIP A PENEPENT JR. Allopathic & Osteopathic Physicians|Internal Medicine NY $52.95
PHILIP OTTERBECK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $130.36
PHILIPPE WUILLEUMIER CA $24.78
PHILLIP P BECK Allopathic & Osteopathic Physicians|Internal Medicine|Infectious Disease MO $20.41
POOJA BHARGAVA Allopathic & Osteopathic Physicians|Internal Medicine NJ $18.54
POOJA HIMANSHU PATEL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $16.41
POORNIMA JAYARAMAIAH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $77.27
PRAISE NWACHUKWU PA $20.88
PRASANTHI S BOYAREDDYGARI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family KY $53.71
PRISCILLA MARANON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ $14.33
PRITI PATEL Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology AZ $44.73
PRIYA ASIJA Allopathic & Osteopathic Physicians|Family Medicine WI $14.09
PRIYA K SHAH Allopathic & Osteopathic Physicians|Internal Medicine CA $17.73
PRIYANKA AGARWAL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $114.19
PUSHYAMI MIKKILINENI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism SC $15.65
QING JIA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $71.43
QUANG NGUYEN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NV $53.83
QUDSIA HUSSAIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism DC $48.04
QUENTIN L VANMETER Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology GA $125.70
QUINTA NFOR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner WI $34.66
RAAD HADDAD Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $93.22
RABIA KHURSHID MALIK NY $20.69
RACHAEL A CRAIG Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner NJ $87.96
RACHAEL ANN TAYLOR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NV $73.19
RACHAEL DOSTER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $16.41
RACHAEL L HOBBS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant UT $16.94
RACHEL ABRAMCZYK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $47.01
RACHEL ELISE LIBERATI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $19.11
RACHEL GONNELLA GRACI Allopathic & Osteopathic Physicians|Pediatrics NJ $16.23
RACHEL L CALENDO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics AZ $98.07
RACHEL L DERR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $22.39
RACHEL L FISHMAN OIKNINE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $33.10
RACHEL LANDRY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $22.08
RACHEL LYNN CRAIG Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family PA $16.32
RACHEL M CAMERON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $16.76
RACHEL M SIEGEL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NJ $14.05
RACHEL MOSKOWITZ Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NJ $31.48
RACHEL N SHELL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $37.97
RACHEL NICOLE TAYLOR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $22.17
RACHEL TAYLOR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health TX $19.74
RACHELLE H GANG Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $61.11
RADHA BERNANDER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical TX $24.63
RADHIKA CHUGH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism OR $112.17
RAFAEL RODRIGUEZ Allopathic & Osteopathic Physicians|Internal Medicine NY $21.09
RAGHDA AL ANBARI Allopathic & Osteopathic Physicians|Internal Medicine GA $24.62
RAJANI PRABHAKARAN Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology TX $66.18
RAJASREE NAMBRON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $16.68
RAJEEV SHARMA Allopathic & Osteopathic Physicians|Internal Medicine CA $12.80
RAJENDER S TOTLANI Allopathic & Osteopathic Physicians|Pediatrics PA $18.54