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US nonprofit · EIN 742501606 · Denver, COiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 742501606) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Aspen Allergy Conference

Donations deductible
Revenue
$466k
year to 31 December 2024
Expenses
$311k
year to 31 December 2024
Total assets
$314k
$0 liabilities
Net assets
$314k
assets less liabilities
Directors and trustees
19
2.7 years on average
Staff
1
19 volunteers
Left since last filing
0
no seats appear to have opened
Officers and senior staff
1
named in Part VII
Exemption reinstated on 15 May 2022. The IRS had automatically revoked it on 15 May 2022 (after three years without a return). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.
How am I connected?

Aspen Allergy Conference's network

19 people1 organisationi19 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (19). Violet dotted lines (1) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

19 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 19 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Alan Schocket MDSteering Commit2024
2 yrs
Bruce Lanser MDSteering Commit2024
2 yrs
Charles Kirkpatrick MDSteering Commit2024
2 yrs
Cullen Dutmer MDSteering Commit2024
2 yrs
Dan Atkins MDSteering Commit2024
2 yrs
David S Pearlman MDSteering Commit2024
2 yrs
Donna Bratton MDSteering Commit2024
2 yrs
Flavia Hoyte MDSteering Commit2024
2 yrs
Gary Siegel MDFinance2024
2 yrs
Harold Nelson MDSteering Commit2024
2 yrs
Jenny Stitt MDSteering Commit2024
2 yrs
John James MDSteering Commit2024
2 yrs
Karen Andrews MDSteering Commit2024
2 yrs
Lanny Rosenwasser MDDirector2018
8 yrs
Nicole Barberis MDSteering Commit2024
2 yrs
Stephen C Dreskin MDSteering Commit2024
2 yrs
THO QUY Truong MDSteering Commit2024
2 yrs
William Anderson III MDSteering Commit2024
2 yrs
William Silvers MDSteering Commit2024
2 yrs
Under 5 years5 to 6 years6 years or moreShow all 19 →

Officers and senior leadership

1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Jill HibbelnOffice Manager2024

Pay and hours

year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Jill HibbelnOffice Manager40$45k
Karen Andrews MDSteering Commit5$0
Gary Siegel MDFinance10$0
Stephen C Dreskin MDSteering Commit5$0
Charles Kirkpatrick MDSteering Commit5$0
Harold Nelson MDSteering Commit5$0
Lanny Rosenwasser MDDirector10$0
Donna Bratton MDSteering Commit5$0
Alan Schocket MDSteering Commit5$0
Dan Atkins MDSteering Commit5$0
John James MDSteering Commit5$0
Nicole Barberis MDSteering Commit5$0
David S Pearlman MDSteering Commit5$0
Flavia Hoyte MDSteering Commit5$0
William Silvers MDSteering Commit5$0
William Anderson III MDSteering Commit5$0
Cullen Dutmer MDSteering Commit5$0
Bruce Lanser MDSteering Commit5$0
Jenny Stitt MDSteering Commit5$0
Tho Quy Truong MDSteering Commit5$0

About

Legal name
Aspen Allergy Conference
EIN
742501606
Address
16 Ivy Ln, Denver, CO, 80220-5314
State
Colorado
Mission
Presentation of a three day seminar for those interested in the field of allergy and respiratory medicene. (as filed on the Form 990)
Activity (NTEE)
G60 Voluntary health associations and medical disciplines
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Voluntary Health Associations & Medical Disciplines
Size band
4 (IRS master file code)
IRS ruling date
1 June 2024
Status
Code 01 (unconditional exemption)
Form 990 filings on record
2, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsLanny Rosenwasser MD
≥2years on the filingsAlan Schocket MD
≥2years on the filingsBruce Lanser MD
≥2years on the filingsCharles Kirkpatrick MD

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$314k
Total liabilities
$0
Net assets or fund balances
$314k
Contributions and grants received
$461k
Program service revenue
$0
Employees
1
Volunteers
19

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$466k$311k$155k

As filed on the IRS Form 990. US dollars.

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Aspen Allergy Conference likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Colorado Secretary of State (CDOS), business entities (data.colorado.gov 4ykn-tg5h). Licence: public domain. Data last fetched 18 October 2026.
State
Colorado
Entity type
nonprofit corporation
Status
Good Standing
Formed
27 October 1992
Registered agent
Small Business Accounting CPA, LLC (city and state not held)

This register does not publish officers or directors.