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
JANE V MAYRIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $196.70
JANELIS GONZALEZ Allopathic & Osteopathic Physicians|Internal Medicine FL $22.69
JANELLE V VIOLAGO Allopathic & Osteopathic Physicians|Internal Medicine PA $20.90
JANICE CHUA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care NJ $13.78
JANKI PATEL Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TX $15.63
JANNA K FLINT WILSON Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology LA $58.41
JANNA PRATER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $173.10
JAROSLAW S PONDO Allopathic & Osteopathic Physicians|Internal Medicine NJ $17.30
JARRA L GREEN-CALDERON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $19.87
JARROD R LUTTJOHANN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical GA $21.35
JASKARAN SINGH SIDHU Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OH $18.81
JASLEEN K DUGGAL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $57.02
JASMIN JAVAHERIAN Allopathic & Osteopathic Physicians|Internal Medicine CA $201.95
JASMINE ANISH Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner IL $20.00
JASMINE K BAJAJ Allopathic & Osteopathic Physicians|Family Medicine NJ $16.06
JASMINE SHARIFAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical UT $20.22
JASON LING Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $36.22
JASPREET K CHAHAL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism KY $18.14
JAVIER ALCID DURON TABORA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism KY $57.72
JAVIER ALEJANDRO GONZALEZ COSME Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $48.92
JAVIER GONZALEZ Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease FL $47.56
JAVZANDULAM NATSAG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $17.51
JAWAAD KHOKHAR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $28.14
JAYA R KOTHAPALLY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $15.82
JAYSHREE DHALI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $60.87
JEAN CHEN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $21.19
JEAN E MOLINARY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $44.60
JEANNETTE R LILLER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CO $74.19
JEANNIE A BAQUERO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $35.19
JEANNIE WAYTOVICH Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health MD $16.85
JEFFREY A DONOHUE Allopathic & Osteopathic Physicians|Family Medicine GA $17.97
JEFFREY F PARKER Allopathic & Osteopathic Physicians|Internal Medicine CA $23.95
JEFFREY FREEMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $107.37
JEFFREY L MILLER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $32.35
JEFFREY N FELDMAN Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology NJ $17.12
JEFFREY ROTHMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $18.58
JEFFREY SHIRLEY Physician Assistants & Advanced Practice Nursing Providers|Clinical Nurse Specialist GA $24.56
JEFFREY T MARSHALL Allopathic & Osteopathic Physicians|Family Medicine OH $17.04
JEHAD E SALIBA Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease NJ $28.30
JENA M WILKINSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner OH $21.00
JENEE B NGUYEN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family LA $45.39
JENELLE ROBINSON Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $15.49
JENELLE TORRES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner FL $45.55
JENICE CHUMMAR Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology NY $116.98
JENNA D FEDEROFF Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family PA $23.57
JENNA GUNSELMAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TN $18.49
JENNA MCCONNELL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family OH $31.80
JENNA NICOLE GOLDSTEIN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY $187.46
JENNA STURGEON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner AZ $37.23
JENNIE DONG Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant AZ $15.83