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Nonprofit · EIN 30-0012730

DIABETES TECHNOLOGY SOCIETY

Tax-exempt · BURLINGAME, CA 94010

Financials

$1.9M$1.5M2024$1M$1.6M2025
Revenue Expenses · by fiscal year end
Financials of DIABETES TECHNOLOGY SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$1,029,388$1,615,150-$585,762$1,420,913$20,362$1,400,551
December 31, 2024990$1,925,694$1,539,248$386,446$2,007,874$21,561$1,986,313
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$191,000
Program service revenue
$792,044
Investment income
$46,344
Other revenue
$0

Expenses

Grants and similar amounts paid
$4,300
Compensation of officers, directors and key employees
$297,813
Other salaries and wages
$189,417
Salaries, compensation and benefits (total)
$544,655
Professional fundraising fees
$0
Legal fees
$9,926
Occupancy
$24,701
Travel
$43,087
Depreciation
$19,422
Program services (functional)
$1,401,081
Management and general (functional)
$214,069

Balance sheet and other

Total assets, start of year
$2,007,874
Total assets, end of year
$1,420,913
Total liabilities, end of year
$20,362
Net assets, end of year
$1,400,551
Land, buildings and equipment
$604
Net assets without donor restrictions
$1,400,551
Gross receipts
$1,029,388
Employees
6
Volunteers
0
Year formed
2001
State of legal domicile
CA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
DR DAVID KLONOFF MDPRESIDENT
Trustee or director, Officer
40$297,813$8,934
HENRY WYKOWSKIDIRECTOR
Trustee or director
1$0$0
AVERY DIAMONDDIRECTOR
Trustee or director
1$0$0
DR GERALD R SYDORAK MDDIRECTOR
Trustee or director
1$0$0
990 for the year ended December 31, 2024: 4 people
NameTitleHours / weekCompensationOther / benefits
DR DAVID KLONOFF MDPRESIDENT
Trustee or director, Officer
40$297,813$8,934
HENRY WYKOWSKIDIRECTOR
Trustee or director
1$0$0
AVERY DIAMONDDIRECTOR
Trustee or director
1$0$0
DR GERALD R SYDORAK MDDIRECTOR
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
533 AIRPORT BLVD STE 400, BURLINGAME, CA 94010-2013
In care of
% DAVID C KLONOSS
Principal officer (990 for 2025)
DR DAVID C KLONOFF MD, 533 AIRPORT BLVD 400, BURLINGAME, CA 94010
Signed the 990
DR DAVID C KLONOFF MD, PRESIDENT
Phone
(650) 491-9109
Return prepared by
SD MAYER & ASSOCIATES LLP

Mission

TO FACILITATE RESEARCH INTO THE TREATMENT, MONITORING, DIAGNOSIS AND PREVENTION OF DIABETES.

990 for the year ended December 31, 2025

Program accomplishments

  • TO FURTHER EDUCATION PROFESSIONALS AND THE PUBLIC ON THE TREATMENT, MONITORING, DIAGNOSIS AND PREVENTION OF DIABETES. THIS WAS ACHIEVED BY HOLDING EDUCATIONAL CONFERENCES, MAINTAINING AN INFORMATIONAL WEBSITE, HOLDING AN ONGOING PODCAST WITH LEADERS IN THE DIABETES TECHNOLOGY FIELD, MAINTAINING A SPANISH/ENGLISH DUAL-LANGUAGE INFORMATIONAL WEBSITE AND PUBLISHING 204 TECHNICAL ARTICLES AND 13 RESEARCH ARTICLES ABOUT DIABETES AND DIABETES TECHNOLOGY. CONFERENCES HELD IN 2025, THE NUMBER OF ATTENDEES AND OTHER PROJECTS ARE AS FOLLOWS:1.TOOLS TO DISTINGUISH T1D & T2D IN ADULTS (TOOLS PROJECT)MEETING #1: 2/4/2025, 14 ATTENDEESMEETING #2: 2/5/2025, 14 ATTENDEESMEETING #3: 5/29/2025: 29 ATTENDEESMEETING #4: 8/13/2025, 14 ATTENDEES2. INTEGRATION OF CONNECTED DIABETES DEVICE DATA INTO THE ELECTRONIC HEALTH RECORD #2 (ICODE-2)SEPTEMBER 18, 2025NO. OF ATTENDEES: 403. THE ROLE OF THE GLYCEMIA RISK INDEX DIABETES TECHNOLOGY MEETING (GRI MEETING)OCTOBER 27, 2025NO. OF ATTENDEES: 484. DIABETES TECHNOLOGY MEETING (IN-PERSON) (DTM 2025)OCTOBER 28-30, 2025NO. OF ATTENDEES: 5005. THE USE OF CGM TO DIAGNOSE STAGE 2 T1D CONSENSUS PANEL (IN-PERSON PRESENTATION AT THE 2025 DTM)OCTOBER 30, 2025 NO. OF ATTENDEES: 500ONGOING PROJECTS:1. DIABETES RESEARCH HUB (DRH) - ONGOING PROJECTTHE DRH IS A COMPREHENSIVE DATA ECOSYSTEM DESIGNED TO ACCELERATE BREAKTHROUGHS IN DIABETES RESEARCH. WE EMPOWER RESEARCHERS BY UNLOCKING THE POTENTIAL OF DATA TRAPPED IN PROPRIETARY MEDICAL DEVICES AND HEALTH SYSTEMS. BY CREATING A SECURE AND USER-FRIENDLY PLATFORM FOR DATA COLLECTION, ANALYSIS, AND COLLABORATION, THE DRH FUELS NEXT-GENERATION RESEARCH USING AI AND ML TO DEVELOP PERSONALIZED AND EFFECTIVE SOLUTIONS FOR DIABETES.2. THE DCB OPEN INNOVATION CHALLENGEIN COLLABORATION WITH DIABETES CENTER BERNEONGOING - LAUNCHED ON 4/1/2024 & FEATURED AT THE DTM 2025 ON 10/30/20253. DIABETES TECHNOLOGY REPORT(DTS PODCAST)DTS LAUNCHED AN ONGOING PODCAST WITH LEADERS IN THE DIABETES TECHNOLOGY FIELD.4. SALUDDIABETES.ORGDTS LAUNCHED A SPANISH/ENGLISH DUAL-LANGUAGE WEBSITE THAT SUMMARIZES RECENT PUBLICATIONS IN DIABETES AND HEALTH FOR THE LAYPERSON.5. OPTIMIZING LIFESTYLE INTERVENTIONS FOR REVERSING INSULIN RESISTANCE - ONGOING PROJECTTO ANALYZE MEDICAL LITERATURE FOR INTERVENTIONS THAT IMPROVE INSULIN SENSITIVITY (EITHER BY AN EFFECT ON THE LIVER, MUSCLES, OR PRODUCTION OF INSULIN OR NATURAL GLP-1RA HORMONE) THAT COULD BECOME PART OF A BEHAVIORAL TOOL TO BE USED FOR PEOPLE WITH PREDIABETES OR WHO ARE AT RISK OF DIABETES TO DECREASE THEIR RISK OF DEVELOPING TYPE 2 DIABETES.6. JDST (JOURNAL OF DIABETES SCIENCE AND TECHNOLOGY)PUBLISHED 204 TECHNICAL ARTICLES ABOUT DIABETES AND DIABETES TECHNOLOGY AFTER RECEIVING 628 ARTICLES TO REVIEW.7. PUBLICATION OF 13 RESEARCH ARTICLES BY DTS STAFF LISTED BELOW:-EVALUATING THE CLINICAL UTILITY OF THE GLYCEMIA RISK INDEX.J DIABETES SCI TECHNOL. 2025 OCT 14:19322968251382604. DOI: 10.1177/19322968251382604. ONLINE AHEAD OF PRINT. PMID: 41216978 FREE PMC ARTICLE.-MACHINE LEARNING TO DIAGNOSE COMPLICATIONS OF DIABETES. J DIABETES SCI TECHNOL. 2025 NOV;19(6):1650-1670. DOI: 10.1177/19322968251365245. EPUB 2025 SEP 11. PMID: 40932163 FREE PMC ARTICLE. REVIEW.-CONTINUOUS GLUCOSE MONITORING DATA ANALYSIS 2.0: FUNCTIONAL DATA PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE APPLICATIONS. J DIABETES SCI TECHNOL. 2025 NOV;19(6):1515-1527. DOI: 10.1177/19322968251353228. EPUB 2025 AUG 14. PMID: 40814224 FREE PMC ARTICLE.-GLUCAGON-LIKE PEPTIDE-1 RECEPTOR AGONISTS AND PERI-PROCEDURAL ASPIRATION RISK. J ENDOCR SOC. 2025 JUL 10;9(9):BVAF088. DOI: 10.1210/JENDSO/BVAF088. ECOLLECTION 2025 SEP. PMID: 40893948 FREE PMC ARTICLE. REVIEW.-THE NEED TO TRANSITION FROM PAPER TO ELECTRONIC INSTRUCTIONS FOR USE FOR DIABETES DEVICES. NPJ DIGIT MED. 2025 JUN 13;8(1):356. DOI: 10.1038/S41746-025-01720-0. PMID: 40514391 FREE PMC ARTICLE.-DIABETES DEVICES: A GROWING ENVIRONMENTAL BURDEN. DIABETES RES CLIN PRACT. 2025 AUG;226:112307. DOI: 10.1016/J.DIABRES.2025.112307. EPUB 2025 JUN 3. PMID: 40473032 NO ABSTRACT AVAILABLE.-USE OF CONTINUOUS GLUCOSE MONITORING TO DIAGNOSE STAGE 2 TYPE 1 DIABETES. J DIABETES SCI TECHNOL. 2025 JUL;19(4):1109-1127. DOI: 10.1177/19322968251333441. EPUB 2025 MAY 30. PMID: 40444471 FREE PMC ARTICLE. REVIEW.-ENVISIONING TOOLS TO HELP CLASSIFY TYPE 1 DIABETES AND TYPE 2 DIABETES IN NEW-ONSET ADULT DIABETES. J DIABETES SCI TECHNOL. 2025 JUL;19(4):1137-1143. DOI: 10.1177/19322968251329055. EPUB 2025 MAR 28. PMID: 40152433 FREE PMC ARTICLE.-QUANTIFYING ENVIRONMENTAL WASTE FROM DIABETES DEVICES IN THE U.S. DIABETES CARE. 2025 JUL 1;48(7):1198-1203. DOI: 10.2337/DC24-2522. PMID: 40072890.-HOW TO PROVIDE ADDITIONAL OVERSIGHT TO ENSURE THAT REMOTE PATIENT MONITORING FOR PEOPLE WITH DIABETES IS BEING USED AND BILLED APPROPRIATELY. DIABETES SCI TECHNOL. 2025 MAY;19(3):843-849. DOI: 10.1177/19322968241309357. EPUB 2025 JAN 16. PMID: 39819165 FREE PMC ARTICLE.-HOW THE DIABETES RESEARCH HUB WILL MODERNIZE AND ENHANCE DIABETES DATA UTILIZATION. J DIABETES SCI TECHNOL. 2026 JAN;20(1):3-6. DOI: 10.1177/19322968241306129. EPUB 2024 DEC 21. PMID: 39707843 FREE PMC ARTICLE.-COMPARISON OF THE GLYCEMIA RISK INDEX AND TIME IN RANGE IN A CASE SERIES OF USING AUTOMATED INSULIN DELIVERY TO IMPROVE GLYCEMIC CONTROL IN PEOPLE WITH TYPE 1 DIABETES AND END STAGE KIDNEY DISEASE ON HEMODIALYSIS. DIABETES RES CLIN PRACT. 2025 JAN;219:111940. DOI: 10.1016/J.DIABRES.2024.111940. EPUB 2024 NOV 29. PMID: 39615793 NO ABSTRACT AVAILABLE.-CONSENSUS REPORT ON THE USE OF CONTINUOUS GLUCOSE MONITORING IN CHRONIC KIDNEY DISEASE AND DIABETES. J DIABETES SCI TECHNOL. 2025 JAN;19(1):217-245. DOI: 10.1177/19322968241292041. EPUB 2024 NOV 29. PMID: 39611379 FREE PMC ARTICLE.
    Expenses $1,401,081 · grants $4,300 · revenue $792,044

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
30-0012730
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2002
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$1,420,913
Income (IRS master file)
$1,029,388

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025–––IRS
990December 2024–––IRS
990December 2023$1,379,124$1,103,400$1,611,702IRS
990December 2022$1,163,946$1,267,548$1,334,588IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS.

Questions about DIABETES TECHNOLOGY SOCIETY

What is the EIN of DIABETES TECHNOLOGY SOCIETY?
The employer identification number (EIN) of DIABETES TECHNOLOGY SOCIETY is 30-0012730.
Is DIABETES TECHNOLOGY SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2002.
Are donations to DIABETES TECHNOLOGY SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does DIABETES TECHNOLOGY SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of DIABETES TECHNOLOGY SOCIETY due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did DIABETES TECHNOLOGY SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of DIABETES TECHNOLOGY SOCIETY?
The 990 for the year ended December 31, 2025 names DR DAVID C KLONOFF MD.
Who are the officers and directors of DIABETES TECHNOLOGY SOCIETY?
The 990 for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $297,813 (DR DAVID KLONOFF MD, PRESIDENT).
How much revenue does DIABETES TECHNOLOGY SOCIETY have?
On its 990 for the year ended December 31, 2025 it reported revenue of $1,029,388, expenses of $1,615,150 and total assets of $1,420,913 at year end.

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