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
DONALD JOSEPH TAMULONIS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology OH $23.71
DONALD MCCARREN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $30.53
DONALD NEGROSKI Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $138.94
DONALD R TYLER Allopathic & Osteopathic Physicians|Neurological Surgery AL $17.49
DONALD S MARKS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology MA $23.25
DONG PARK Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology MD $246.10
DONG VO CA $119.43
DONG WANG Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology GA $59.58
DONNA A HOLSCHER Allopathic & Osteopathic Physicians|Family Medicine CA $51.87
DORIANN T STEMPINSKI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family GA $152.53
DOUGLAS B FREELS Allopathic & Osteopathic Physicians|Orthopaedic Surgery TN $12.76
DOUGLAS D SANKAR Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NY $29.75
DOUGLAS DAVID DAVIES Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $24.91
DOUGLAS JOEL ALEXANDER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry NY $13.30
DOUGLAS N SULLIVANT Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology IL $96.32
DOUGLAS P WILLIAMS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TN $123.56
DOUGLAS PAINE IN $98.07
DOUGLAS R GALASKO Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $24.63
DOUGLAS R TAYLOR Allopathic & Osteopathic Physicians|Neurological Surgery TN $19.26
DOUGLAS ROBERT SINCLAIR Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neuromuscular Medicine SC $46.04
DOUGLAS ROY LANGFORD Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology UT $299.58
DREAMA V BRAR Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology VA $33.46
DREW CUMMING Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychosomatic Medicine OH $21.70
DREW R UHRIG Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology AL $174.99
DREW W DULA Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology OH $162.88
DUARTE G MACHADO Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CT $71,891.25
DUC TRAN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $84.85
DUNG C NGUYEN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $148.74
DUNG CHI NGUYEN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TX $186.40
DUSTIN BROOK HARKER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology KS $17.47
DUSTIN K SMYTH Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology ME $120.35
EALON JOELSON Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $47.82
EARL K WILSON Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TN $43.77
EARL ZEITLIN Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NY $27.77
EARNEST L MURRAY Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TN $13.82
EBONY M MCKINNIES Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology LA $35.08
EDGAR JAY B EVANGELISTA Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Clinical Neurophysiology NV $21.17
EDGARDO M COLON ZAVALA Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology PR $18.61
EDIE E ZUSMAN Allopathic & Osteopathic Physicians|Neurological Surgery CA $16.99
EDMOND ALAN VERNON ROBERTS Allopathic & Osteopathic Physicians|Family Medicine|Sleep Medicine WV $17.39
EDMUND GRANT Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $509.07
EDUARDO ADONIAS DE SOUSA Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology OK $11.95
EDUARDO CUTIE Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology FL $549.35
EDUARDO GALLEGOS Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology CA $55.09
EDWARD B DECKER Allopathic & Osteopathic Physicians|Ophthalmology NJ $15.79
EDWARD C MADER Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology LA $40.39
EDWARD D ZDOBYLAK Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology OK $102.61
EDWARD FIROUZTALE Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NY $154.14
EDWARD FRANK MCDONALD Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology GA $20.45
EDWARD G HILL Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology NC $583.08