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
SHEERA K SIEGEL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $42.44
SHEETAL GOPICHAND BULCHANDANI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism DE $15.97
SHEHZAD MEHBOOB TOPIWALA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $111.61
SHEILA M CALUMPIANO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics TX $91.11
SHERI L MORRIS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health SC $30.90
SHERILYN J RUSSELL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $35.89
SHERRY K SUSSMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $201.78
SHERYL THANT YU HTOO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism WA $37.49
SHIKHA BHARAKTIYA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $43.14
SHILPA KESARI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology NJ $18.60
SHRENIKA REDDY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $128.51
SHREYA PUJARA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $34.57
SHREYA R PARIKH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $142.19
SHUBH P KAUR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $32.50
SIERRA S TIALINO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $18.31
SIMMANJEET MANGAT Allopathic & Osteopathic Physicians|Internal Medicine NY $18.72
SIMONE TAIJAE PERSON FORT Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical FL $13.73
SINA TEBI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $39.46
SIOBHAN YOSHIDA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MD $20.88
SIPPORA LEHRHAUPT Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MD $16.85
SIRLYS ARCON RIOS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $13.76
SOFI M ABRAHAM Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CO $31.49
SOHAIL H ALI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $20.46
SONALEE RAVI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology IL $16.64
SONALI GANGULY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $21.35
SONIA A EAPEN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $114.90
SONIE S SUNNY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $20.47
SONUM SINGH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $15.76
SONYA KHIMANI Allopathic & Osteopathic Physicians|Internal Medicine GA $17.52
SONYA S ADDISON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $20.40
SORAYA M MEDINA DELPINO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family FL $20.10
SOUMYA NAGARAJA Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology AZ $45.34
SREEDEVI VELUVARTI AVDHANI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $20.99
SRI RAM TEJA SATHI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $32.41
SRIKANTH NADELLA Allopathic & Osteopathic Physicians|Internal Medicine IL $18.80
SRINIVAS RAO PANJA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $34.60
STACEY A COYLE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family PA $31.20
STACY LYNN CONGDON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $20.69
STACY LYNN WHISNER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family OH $18.39
STACY M SCREWS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $30.55
STANISLAV GOYKHMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $68.86
STANLEY MATHEW Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $54.05
STANTON R ELZI Allopathic & Osteopathic Physicians|Internal Medicine CO $31.83
STEFANIE S RUFFOLO Allopathic & Osteopathic Physicians|Internal Medicine WI $16.99
STELLA HECKER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $39.60
STELLA ILYAYEVA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $752.05
STEPHANIE ALESKOW STEIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $42.30
STEPHANIE H GARRIS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $49.07
STEPHANIE JESINA Allopathic & Osteopathic Physicians|Internal Medicine NE $17.81
STEPHANIE L PERRY Allopathic & Osteopathic Physicians|Internal Medicine PA $18.18