Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published PY2022–2024 Search official records Methodology

Amphastar Pharmaceuticals, Inc.

1,440 providers listed $60,303.56 reported 2,410 records General Payments

General Payments reported — all loaded program years

$60,303.56

  • Category: General Payments
  • Program years: 2022, 2023, 2024
  • Record count: 2,410
  • Providers listed: 1,440

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How this figure is calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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 2018–2024, 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

By recipient specialty (25 shown)

Sorted by reported total.

SpecialtyReportedRecordsProviders
Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism $17,208.87 931 497
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical $15,628.26 80 39
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family $6,733.95 361 221
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant $3,331.92 156 95
Allopathic & Osteopathic Physicians|Internal Medicine $3,291.03 153 115
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology $2,707.51 143 74
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner $2,689.06 139 84
Allopathic & Osteopathic Physicians|Family Medicine $2,198.87 120 81
Allopathic & Osteopathic Physicians|Pediatrics $1,112.62 57 41
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics $991.43 53 33
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health $680.16 38 26
Allopathic & Osteopathic Physicians|Otolaryngology $650.00 1 1
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care $524.18 29 19
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care $226.41 14 9
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology $178.77 11 7
Allopathic & Osteopathic Physicians|Hospitalist $161.88 9 7
Allopathic & Osteopathic Physicians|General Practice $115.83 6 6
Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease $108.13 6 3
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Gastroenterology $87.18 5 5
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical $55.20 3 2
Allopathic & Osteopathic Physicians|Pediatrics|Developmental - Behavioral Pediatrics $51.04 3 1
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology $50.35 3 3
Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease $49.71 3 3
Podiatric Medicine & Surgery Service Providers|Podiatrist $44.32 3 1
Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology $42.58 3 2

Providers listed (1,440)

Sorted by name. Sort by amount instead

ProviderSpecialtyStateReported by this company
CHETANBABU PATEL Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology AZ $47.94
CHI TANG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CT $71.11
CHIH C CHANG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IN $20.36
CHRIS THOMAS ALEXANDER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $34.83
CHRISTINA ALENE PALMER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner KS $33.17
CHRISTINA G GO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism VA $23.76
CHRISTINA M FAST Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NE $18.26
CHRISTINA M MILLER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family AZ $19.38
CHRISTINA TERRI DIMECH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism WV $16.84
CHRISTINE MARIE WIESELER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NE $18.26
CHRISTINE N CLANCY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology PA $15.45
CHRISTON GRANT Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology CT $13.95
CHRISTOPHER C FOSTER Allopathic & Osteopathic Physicians|Pediatrics UT $16.94
CHRISTOPHER DAVID HOLLOWAY Allopathic & Osteopathic Physicians|Family Medicine TN $17.87
CHRISTOPHER MICHAEL LESNIAK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $13.78
CHRISTOPHER PACE NV $14.36
CHRISTOPHER VREELAND Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $20.72
CHRISTOPHER W MARX Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $13.90
CHUNLIU GONG Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics OR $24.95
CIGY METHRATTA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MA $14.44
CINDY HUANG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $16.55
CINDY P EARLE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $16.55
CLARA AMPADU Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IL $17.56
CLARA HUBBS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $14.12
CLARA NORMANYO Allopathic & Osteopathic Physicians|Family Medicine OH $20.66
CLARESA SHARON LEVETAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $13.79
CLARISSA DROGOSCH Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $14.28
CLAUDIA SPENCER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $55.24
COLETTE BROOKS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner DE $15.55
COLETTE MONIQUE KNIGHT Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $12.80
COLETTE W JOHNSON Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TN $23.37
CORAL KAOMA JIMENEZ ROVIRA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PR $46.66
COREY D BERLIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NC $27.73
COREY S MAJORS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism LA $31.71
COROMOTO A PALERMO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $20.75
COURTNEY PESHKOVSKY Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Cardiology NJ $15.66
CRAIG D PERLMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $36.05
CRAIG WIERUM Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN $64.93
CRISTINA MARCO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA $22.74
CRISTINA ORTEGA Allopathic & Osteopathic Physicians|Family Medicine CT $19.68
CRYSTAL DENSMORE Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY $23.14
CRYSTAL MARIE COOPER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care TX $49.91
CRYSTAL MARIE CULBERT Allopathic & Osteopathic Physicians|Internal Medicine CO $83.95
CYNTHIA E KALLET Allopathic & Osteopathic Physicians|Family Medicine OH $34.00
CYNTHIA G RIVAS PAJUELO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $36.58
DAESMAN N SURI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $22.12
DALLAS W CLARK Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NV $52.24
DAMARIS VEGA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $99.78
DAN F BAUTISTA Allopathic & Osteopathic Physicians|Family Medicine OH $52.82
DANA G MATERIA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner NY $18.58