Skip to content
Nonprofiteer
← All organizations

AMERICAN THROMBOSIS AND HEMOSTASISNETWORK INC

EIN 20-5244339 HICKORY, NC

Revenue 2024
$15,982,317
Expenses 2024
$17,011,486

Program services were 82.4% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
H99
Classification
2000
Street
200 1ST AVE NW STE 316

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • CHRISTOPHER E WALSH MD PHD

    CHAIR

    Total calculated
    $0
    Hours/week
    1

  • TAMARA VOGEL MBA

    TREASURER

    Total calculated
    $0
    Hours/week
    1

  • DUC BOBBY TRAN MD MSC

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • JENNIFER G DAVILA MD

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • JIM MUNN RN MS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • ROBERT SIDONIO MD

    DIRECTOR

    Total calculated
    $36,000
    From this org
    $36,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • CRYSTAL WATSON

    PRESIDENT AND CEO

    Total calculated
    $390,565
    From this org
    $331,645
    From related orgs
    $0
    Other
    $58,920
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $286,072
    Bonus
    $43,473
    Other
    $2,100
    Deferred
    $20,471
    Nontaxable benefits
    $38,449
    Filer's total
    $390,565

  • ROOSEVELT COUNCIL

    CHIEF FINANCIAL OFFICER

    Total calculated
    $18,373
    From this org
    $18,073
    From related orgs
    $0
    Other
    $300
    Hours/week
    40

  • MICHAEL NIEKAMP

    CFO ENDING 12/24

    Total calculated
    $329,858
    From this org
    $278,341
    From related orgs
    $0
    Other
    $51,517
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $241,478
    Bonus
    $34,763
    Other
    $2,100
    Deferred
    $17,196
    Nontaxable benefits
    $34,321
    Filer's total
    $329,858

  • TAMMUELLA SINGLETON

    CHIEF SCIENCE OFFICER

    Total calculated
    $428,123
    From this org
    $405,584
    From related orgs
    $0
    Other
    $22,539
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $350,984
    Bonus
    $52,500
    Other
    $2,100
    Deferred
    $0
    Nontaxable benefits
    $22,539
    Filer's total
    $428,123

  • MOSES MILES III

    CHIEF OPERATING OFFICER

    Total calculated
    $324,278
    From this org
    $299,312
    From related orgs
    $0
    Other
    $24,966
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $259,108
    Bonus
    $38,104
    Other
    $2,100
    Deferred
    $17,959
    Nontaxable benefits
    $7,007
    Filer's total
    $324,278

  • SRIKANTH SUBRAMANYA

    SR. DIRECTOR, ENGINEERING

    Total calculated
    $260,933
    From this org
    $189,553
    From related orgs
    $0
    Other
    $71,380
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $169,170
    Bonus
    $18,283
    Other
    $2,100
    Deferred
    $12,412
    Nontaxable benefits
    $58,968
    Filer's total
    $260,933

  • NABIL DAOUD

    DIRECTOR, DATA SCIENCE

    Total calculated
    $201,509
    From this org
    $177,216
    From related orgs
    $0
    Other
    $24,293
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $159,481
    Bonus
    $15,635
    Other
    $2,100
    Deferred
    $10,633
    Nontaxable benefits
    $13,660
    Filer's total
    $201,509

  • TROY VERBRUGGE

    LEAD SOFTWARE ENGINEER

    Total calculated
    $207,719
    From this org
    $181,324
    From related orgs
    $0
    Other
    $26,395
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $167,688
    Bonus
    $11,536
    Other
    $2,100
    Deferred
    $10,904
    Nontaxable benefits
    $15,491
    Filer's total
    $207,719

  • JUSTINE KAPLAN

    SR. DIRECTOR, OFFICE OF PHI

    Total calculated
    $188,044
    From this org
    $167,090
    From related orgs
    $0
    Other
    $20,954
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $149,540
    Bonus
    $15,450
    Other
    $2,100
    Deferred
    $8,126
    Nontaxable benefits
    $12,828
    Filer's total
    $188,044

  • DIANA VAINSHTEIN

    DIRECTOR, PRODUCT MANAGEMENT

    Total calculated
    $209,226
    From this org
    $166,397
    From related orgs
    $0
    Other
    $42,829
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $156,297
    Bonus
    $8,000
    Other
    $2,100
    Deferred
    $10,398
    Nontaxable benefits
    $32,431
    Filer's total
    $209,226

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $15,982,317
    Expenses
    $17,011,486
    Contributions
    $15,816,465
    Grants paid
    $5,125,912
  • 2023
    Revenue
    $13,573,899
    Expenses
    $16,433,621
    Contributions
    $12,829,029
    Grants paid
    $4,715,723
  • 2022
    Revenue
    $13,595,220
    Expenses
    $14,534,841
    Contributions
    $13,465,526
    Grants paid
    $5,395,276

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Grants made

The 10 largest by cash amount. The API serves every itemized grant.

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.