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UNIVERSITY OF MARYLAND DERMATOLOGISTS P A

EIN 52-1726248 BALTIMORE, MD

Revenue 2023
$4,836,302
Expenses 2023
$4,467,994

Program services were 81.1% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E31Z
Classification
1000
Street
419 W REDWOOD ST STE 235

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 · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • ZAINEB H MAKHZOUMI MD

    Vice President

    Total calculated
    $657,976
    From this org
    $628,079
    From related orgs
    $0
    Other
    $29,897
    Hours/week
    33

    Schedule J breakdown matched by us

    Base
    $296,940
    Bonus
    $331,139
    Other
    $0
    Deferred
    $22,113
    Nontaxable benefits
    $7,784
    Filer's total
    $657,976

  • LAURIE E TIMBERLAKE

    Secretary

    Total calculated
    $318,637
    From this org
    $263,095
    From related orgs
    $0
    Other
    $55,542
    Hours/week
    8

    Schedule J breakdown matched by us

    Base
    $228,425
    Bonus
    $34,670
    Other
    $0
    Deferred
    $25,614
    Nontaxable benefits
    $29,928
    Filer's total
    $318,637

  • JASON ROSE MD

    PRESIDENT (AS OF 5/2023)

    Total calculated
    $109,911
    From this org
    $0
    From related orgs
    $106,250
    Other
    $3,661
    Hours/week
    10 + 1 related

  • EWART RUSSELL

    Treasurer

    Total calculated
    $48,136
    From this org
    $0
    From related orgs
    $48,136
    Other
    $0
    Hours/week
    12

  • Thomas Hornyak MD

    PRESIDENT (THRU 4/23)

    Total calculated
    $24,059
    From this org
    $19,600
    From related orgs
    $0
    Other
    $4,459
    Hours/week
    5 + 1 related

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

  • 2023
    Revenue
    $4,836,302
    Expenses
    $4,467,994
    Contributions
    $0
    Grants paid
    $0
  • 2022
    Revenue
    $3,686,283
    Expenses
    $3,833,881
    Contributions
    $0
    Grants paid
    $0

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

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2023 return

Declared as related by

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.