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
RUTH MCDONALD Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY $24.44
RYAN ESTON WEISS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TN $39.48
RYAN JOHN DYESS Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology SC $24.66
RYAN KUMAR SINGHI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism SC $20.76
RYAN W WEBER Allopathic & Osteopathic Physicians|Family Medicine NY $41.88
RYAN WILLIAM HARTMAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care TN $82.14
SABAA JOAD Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $18.19
SABEENA FAIZ Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IL $21.97
SABREEN AHMED Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $122.02
SABREEN SARSOUR Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family WI $15.90
SACHIN BAHL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $26.77
SADIQ H MANDILAWI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $20.55
SAFRIN ALI Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TX $49.92
SAFWAN HAMWI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $80.35
SAFWAN MALAS Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Gastroenterology MI $43.60
SAHANA P HUNDAL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism VA $14.38
SAHZENE YAVUZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $15.73
SAIRA ADEEL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $24.84
SAIRA SUNDUS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $21.04
SALAHEDDIN HI ELROKHSI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology NE $14.12
SALEEMAH Y FAHMI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $19.71
SALVANA SINGH Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care NJ $31.57
SAMANTHA BURCH MCGILL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MS $37.52
SAMANTHA C NUNAMAKER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $14.12
SAMANTHA DE ALMEIDA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care NJ $14.89
SAMANTHA RELYEA Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY $17.26
SAMARA PENA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MA $14.44
SAMATA BASANI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $106.89
SAMEERA DAUD AHMAD Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $15.55
SAMEH ELIAS Allopathic & Osteopathic Physicians|Internal Medicine NJ $15.78
SAMER N NAKHLE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NV $18.84
SAMINA T SYED Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism WI $37.51
SAMIR MULLICK Allopathic & Osteopathic Physicians|Pediatrics WI $16.71
SAMUEL GEORGE JACOBOWITZ Allopathic & Osteopathic Physicians|Family Medicine CO $45.24
SAMUEL I MALLOUHI Allopathic & Osteopathic Physicians|Internal Medicine NJ $15.42
SAMUEL R ANDERSON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism OH $20.13
SANA AHSUN NJ $17.15
SANDEEP BHARGAVA Allopathic & Osteopathic Physicians|Internal Medicine|Transplant Hepatology NJ $15.67
SANDER J PAUL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $57.06
SANDRA J SAUVAGEAU Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner NY $38.34
SANDRA M ARCE GARZON Allopathic & Osteopathic Physicians|Pediatrics WI $20.96
SAPNA M PATEL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $35.18
SAQUIBA SYED Allopathic & Osteopathic Physicians|Internal Medicine NJ $29.22
SARA HUSSAIN AHMED Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $22.21
SARA SCHMIDT Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner CO $63.32
SARA SEIDER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family KS $49.44
SARA TURNER COOPER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $15.65
SARAH A DEROCHA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family SC $15.53
SARAH ELIZABETH SPENCE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $16.41
SARAH ELIZABETH VER STEEG Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics GA $23.32