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Dr. David J. Cahn, MD

Urology (Urology Physician)

  • Medicare participating

At a glance

Years since graduation
36
In the NPI registry since
2006
Medicare patients seen, 2024
361

Licensed in Colorado since 1996, according to the Colorado Department of Regulatory Agencies. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1990Medical school: Albert Einstein College of Medicine of Yeshiva University
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Urology Physician primary
    CO license 35416 (first issued 1996; active)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Urology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
361
Services billed
4,228
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Injection, denosumab, 1 mg1,62011
Established patient office or other outpatient visit, 30-39 minutes209144
Established patient office or other outpatient visit, 20-29 minutes208171
Automated urinalysis test124109
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month9433
Ultrasound measurement of bladder capacity after voiding8979
Leuprolide acetate (for depot suspension), 7.5 mg8511
Diagnostic exam of bladder and urethra using an endoscope6258
New patient office or other outpatient visit, 45-59 minutes5757
Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle3718

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 22 companies reported 80 payments worth $22,235 in total to this clinician.

By type
Consulting Fee$10,014
Compensation for services other than consulting (speaking, faculty)$6,160
Travel and Lodging$3,407
Food and Beverage$2,655

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
May 9, 2025Janssen Biotech, Inc.
May 9, 2025
Consulting Fee$4,024
Nov 18, 2025Janssen Biotech, Inc.
Nov 18, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$3,300
Oct 24, 2025Janssen Biotech, Inc.
Oct 24, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$2,860
Apr 2, 2025GlaxoSmithKline, LLC.
Apr 2, 2025
Consulting Fee$2,400
Oct 22, 2025Janssen Scientific Affairs, LLC
Oct 22, 2025
Consulting Fee$1,410
Apr 27, 2025Janssen Scientific Affairs, LLC
Apr 27, 2025
Consulting Fee$1,363
Apr 27, 2025Janssen Biotech, Inc.
Apr 27, 2025
Consulting Fee$818
Mar 9, 2025Janssen Scientific Affairs, LLC
Mar 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$497
Apr 9, 2025Janssen Scientific Affairs, LLC
Apr 9, 2025
Travel and Lodging
travel to GOLDEN, CO · in-kind
$450
Apr 9, 2025Janssen Scientific Affairs, LLC
Apr 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$444
All 21 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Dec 9, 2025Janssen Scientific Affairs, LLC
Dec 9, 2025
Travel and Lodging
ERLEADA · Oncology · travel to DENVER, CO · in-kind
$14.00
Nov 18, 2025Janssen Biotech, Inc.
Nov 18, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$3,300
Nov 14, 2025Janssen Biotech, Inc.
Nov 14, 2025
Travel and Lodging
RYBREVANT; CARVYKTI · Oncology · travel to Las Vegas, NV · in-kind
$172
Oct 30, 2025Janssen Biotech, Inc.
Oct 30, 2025
Travel and Lodging
RYBREVANT; CARVYKTI · Oncology · travel to Greenwood Village, CO
$25.20
Oct 24, 2025Janssen Biotech, Inc.
Oct 24, 2025
Compensation for services other than consulting (speaking, faculty)
RYBREVANT; CARVYKTI · Oncology
$2,860
Oct 22, 2025Janssen Scientific Affairs, LLC
Oct 22, 2025
Consulting Fee$1,410
Oct 16, 2025Janssen Biotech, Inc.
Oct 16, 2025
Travel and Lodging
RYBREVANT; CARVYKTI · Oncology · travel to Las Vegas, NV · in-kind
$423
May 9, 2025Janssen Biotech, Inc.
May 9, 2025
Consulting Fee$4,024
May 9, 2025Janssen Scientific Affairs, LLC
May 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$174
Apr 27, 2025Janssen Scientific Affairs, LLC
Apr 27, 2025
Consulting Fee$1,363
Apr 27, 2025Janssen Biotech, Inc.
Apr 27, 2025
Consulting Fee$818
Apr 23, 2025Janssen Biotech, Inc.
Apr 23, 2025
Travel and Lodging
travel to DALLAS, TX · in-kind
$148
Apr 23, 2025Janssen Biotech, Inc.
Apr 23, 2025
Travel and Lodging
travel to DALLAS, TX · in-kind
$131
Apr 9, 2025Janssen Scientific Affairs, LLC
Apr 9, 2025
Travel and Lodging
travel to GOLDEN, CO · in-kind
$450
Apr 9, 2025Janssen Scientific Affairs, LLC
Apr 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$444
Apr 2, 2025GlaxoSmithKline, LLC.
Apr 2, 2025
Consulting Fee$2,400
Mar 27, 2025Janssen Biotech, Inc.
Mar 27, 2025
Travel and Lodging
travel to DALLAS, TX · in-kind
$233
Mar 9, 2025Janssen Scientific Affairs, LLC
Mar 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$497
Mar 9, 2025Janssen Scientific Affairs, LLC
Mar 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$323
Mar 9, 2025Janssen Scientific Affairs, LLC
Mar 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$194
Mar 9, 2025Janssen Scientific Affairs, LLC
Mar 9, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$179

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Colorado →

Industry-funded research

Named as a principal investigator on 30 industry-funded studies in 2025, from 8 companies. The companies reported $3,894,039 in research payments for these studies, mostly to the institutions running them.

  • A Phase 3, Open-label, Randomized, Prospective Study of Apalutamide Monotherapy Versus Apalutamide Plus Androgen Deprivation Therapy (ADT) in Participants Newly Diagnosed with Metastatic Castration-Sensitive Prostate …
    Janssen Research & Development, LLC
  • A Randomized 2-cohort Double-blind Placebo-controlled Phase III Study of AZD5305 in Combination with Physicians Choice New Hormonal Agents in Patients with HRRm and non-HRRm Metastatic Castration-Sensitive Prostate Ca…
    AstraZeneca Pharmaceuticals LP
  • A Phase 3, Randomized, Comparator-controlled Clinical Trial to Study the Efficacy and Safety of Pembrolizumab MK-3475 in Combination with Bacillus Calmette- Guerin BCG in Participants with High-risk Non-muscle Invasiv…
    Merck Sharp & Dohme LLC
  • A Randomized Double blind Placebo controlled Phase 3 Study of Apalutamide in Subjects with High risk Localized or Locally Advanced Prostate Cancer Who are Candidates for Radical Prostatectomy
    Janssen Research & Development, LLC
  • A Randomized, Controlled, Multicenter, Open-label Study to Investigate the Efficacy and Safety of Adding Apalutamide to Radiotherapy and LHRH Agonist in High-Risk Patients with PSMA-PET-Positive Hormone-Sensitive Pros…
    Janssen Research & Development, LLC
  • A Study of TAR200 in Combination With Cetrelimab TAR200 Alone or Cetrelimab Alone in Participants With Non Muscle Invasive Bladder Cancer NMIBC Unresponsive to Intravesical Bacillus Calmette Guerin Who Are Ineligible …
    Janssen Research & Development, LLC
  • A phase 3b,open label,single arm,multi center,US study of bacillus calmette guerin bcg administered in combination with durvalumab in adult bcg naive,high risk non muscle invasive bladder cancer participants patapsco
    AstraZeneca Pharmaceuticals LP
  • BAY 1841788, A randomized, double-blind, placebo-controlled Phase 3 study of darolutamide plus androgen deprivation therapy (ADT) compared with placebo plus ADT in patients with high-risk biochemical
    Bayer HealthCare Pharmaceuticals Inc.
  • A Phase 3, Open-Label, Multi-Center, Randomized Study Evaluating the Efficacy and Safety of TAR-200 in Combination with Cetrelimab Versus Intravesical Bacillus CalmetteGurin (BCG) in Participants with BCG-nave High-Ri…
    Janssen Research & Development, LLC
  • A Phase III Double-Blind Randomised Placebo-Controlled Study Assessing the Efficacy and Safety of Capivasertib + Docetaxel Versus Placebo + Docetaxel as Treatment for Patients with Metastatic Castration Resistant Pros…
    AstraZeneca UK Limited

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Urology clinicians in Golden

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 25, 2018), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1275561748. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.