Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · PY2019–2021 Search official records Methodology

Adamas Pharmaceuticals, Inc.

3,632 providers listed $2,315,615.37 reported 20,045 records General Payments

General Payments reported — all loaded program years

$2,315,615.37

  • Category: General Payments
  • Program years: 2019, 2020, 2021
  • Record count: 20,045
  • Providers listed: 3,632

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
PY2019 $1,036,602.03 6,946 2,059
PY2020 $572,897.24 5,711 1,759
PY2021 $706,116.10 7,388 2,227

By recipient specialty (25 shown)

Sorted by reported total.

SpecialtyReportedRecordsProviders
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology $2,147,115.45 16,066 2,461
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry $63,550.73 158 28
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family $8,625.69 519 181
Allopathic & Osteopathic Physicians|Internal Medicine $8,380.32 224 87
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant $6,535.44 370 113
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner $5,813.72 270 106
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Clinical Neurophysiology $5,507.16 350 39
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical $3,224.14 125 38
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology with Special Qualifications in Child Neurology $2,304.30 134 34
Allopathic & Osteopathic Physicians|Neurological Surgery $1,937.22 105 39
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Sleep Medicine $1,833.83 91 19
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health $1,760.98 92 33
Allopathic & Osteopathic Physicians|Family Medicine $1,541.28 78 45
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Epilepsy $1,382.22 94 11
Allopathic & Osteopathic Physicians|Physical Medicine & Rehabilitation $1,238.23 66 24
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neuromuscular Medicine $1,123.75 68 12
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care $697.70 37 17
Allopathic & Osteopathic Physicians|Neuromusculoskeletal Medicine & OMM $654.33 48 10
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Vascular Neurology $653.42 34 14
Allopathic & Osteopathic Physicians|Hospitalist $583.42 40 27
Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology $516.53 26 6
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical $498.32 24 4
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology $430.48 23 12
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Diagnostic Neuroimaging $407.48 27 5
Allopathic & Osteopathic Physicians|Radiology|Diagnostic Radiology $398.30 20 13

Providers listed (3,632)

Sorted by name. Sort by amount instead

ProviderSpecialtyStateReported by this company
DANNY LIANG Allopathic & Osteopathic Physicians|Neurological Surgery FL $12.96
DANNY M CHACHERE Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $48.96
DANNY R BARTEL Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $43.69
DANNY S PARK Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology IL $18.81
DAPHNE AZIZA CAULKER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $36.19
DARAGH HEITZMAN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $60.96
DAREL BUTLER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $24.80
DARIO M ZAGAR Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CT $65.71
DARREN P GANNUCH Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Sleep Medicine AL $11.85
DARRICK J ALAIMO Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NY $35.78
DARSHAN MAHAJAN OH $181.45
DARSHANA PRITESH AMIN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $70.45
DARSHANA SACHIN PAI Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry CA $20.29
DARYL J VICTOR Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NY $123.35
DARYL R STORY Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CT $118.05
DAVENDER S KHERA Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $151.24
DAVID A GLANDER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology IN $15.56
DAVID A HOLLIS Allopathic & Osteopathic Physicians|Family Medicine AL $20.56
DAVID A KONANC Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NC $56.71
DAVID A RACHER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $302.69
DAVID A ROSENBERG Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $23.55
DAVID A SCHMERLER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology OH $2,494.40
DAVID ANDREW TARGAN Allopathic & Osteopathic Physicians|Internal Medicine PA $38.42
DAVID B ROSS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $20.85
DAVID BARBA Allopathic & Osteopathic Physicians|Neurological Surgery CA $35.42
DAVID C MARZULO Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology AZ $93.58
DAVID C WEISMAN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology PA $36.09
DAVID CHACHKHIANI Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology LA $19.23
DAVID COUGHLIN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $23.45
DAVID D BUCKLAND Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology SC $16.96
DAVID D GILL Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology MI $23.26
DAVID D HOLSTEIN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $55.12
DAVID D HOUSTON Allopathic & Osteopathic Physicians|Family Medicine OH $25.43
DAVID D WILT Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner SC $19.62
DAVID DENNIS VAN SLOOTEN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NJ $192.80
DAVID E HARDESTY Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $17.68
DAVID E RILEY Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology OH $48.88
DAVID ERIC COLLINS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $18.57
DAVID F CLARK Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology KS $38.63
DAVID FILIPPI Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $64.84
DAVID G GREER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology AL $599.87
DAVID GLEN MCHENRY Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology MS $43.09
DAVID H COOKE JR. Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $16.22
DAVID H HAMMETT Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology SC $13.38
DAVID J DICKOFF Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry NY $43.21
DAVID J MCDONALD Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Diagnostic Neuroimaging FL $66.46
DAVID J PACKEY Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $65.36
DAVID J THOMASON Allopathic & Osteopathic Physicians|Physical Medicine & Rehabilitation AL $232.04
DAVID JEFFERY HOUGHTON Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology with Special Qualifications in Child Neurology LA $54.80
DAVID KING STEPHENS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Epilepsy CA $27.00