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
STEPHANIE SALAS Allopathic & Osteopathic Physicians|Internal Medicine FL $22.49
STEPHEN J HEYMAN Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease TN $16.29
STEPHEN J SWARTZ Allopathic & Osteopathic Physicians|Internal Medicine NJ $17.45
STEVE I CHANG Allopathic & Osteopathic Physicians|Internal Medicine WI $34.66
STEVE V FORDAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $18.06
STEVEN A PALLY Allopathic & Osteopathic Physicians|Internal Medicine NJ $13.96
STEVEN B LEICHTER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $15.30
STEVEN E SALTMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $21.66
STEVEN H EVERSLEY Allopathic & Osteopathic Physicians|Internal Medicine MD $32.96
STEVEN K BIXLER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health OH $37.85
STEVEN LEE BROWN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism UT $17.10
STEVEN ZYGMONT Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $44.29
SUBIR GUHA Allopathic & Osteopathic Physicians|Family Medicine TN $40.97
SUCHARITHA KANKANALA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $13.73
SUCHITRA BHAKTA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $16.23
SUDEEP S DHILLON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $16.83
SUFYAN SAID Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $15.53
SUHAD ZIAD NIAZI Allopathic & Osteopathic Physicians|Pediatrics CA $15.88
SUHAIB NASHI Allopathic & Osteopathic Physicians|Pediatrics NJ $13.62
SUJATA SITAULA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $18.81
SUJATA WAGH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $117.71
SUKETU SHAH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $15.31
SULING LI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IL $17.88
SUMANA G REDDY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $29.76
SUMANA GANGI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $37.18
SUMANA KODURI Allopathic & Osteopathic Physicians|Urology|Urogynecology and Reconstructive Pelvic Surgery WI $14.09
SUMMER D BROOKS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $36.96
SUNIL NAYAK Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology CO $267.06
SUROSH NAZEER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $97.62
SUSAN ADAMS Allopathic & Osteopathic Physicians|Internal Medicine MO $40.38
SUSAN DREGER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family KS $20.45
SUSAN M ANDERSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TN $18.72
SUSAN MAYKISH Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health NJ $17.60
SUSAN NUNEZ Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology TX $14.60
SUSAN P CALDWELL Allopathic & Osteopathic Physicians|Internal Medicine LA $14.80
SUSAN S GARCIA CASTILLO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $22.36
SUSAN SHEY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $21.51
SUSAN T GIARDINO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner NY $38.59
SUSANNA PINELIS Allopathic & Osteopathic Physicians|Family Medicine MI $23.95
SUZANNE PALMIERI Allopathic & Osteopathic Physicians|Family Medicine NY $40.89
SUZANNE ROGACZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism VA $37.04
SVETLANA B TEN Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology NY $23.61
SVETLANA FOMIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $75.55
SVETLANA VALERYEVNA SHIFRIN-DOUGLAS NJ $16.91
SWARNA VARMA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $29.61
SWAROOPA V BARTAKKE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $16.30
SWATHI BEERAVOLU Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism SC $39.86
SWATI DAVE-SHARMA Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology NY $13.52
SWATI VIJAYLAKSHMI ELCHURI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology CA $149.41
SYDNEY ELAINE CWIEKA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NJ $48.17