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Dr. Darrell J. Lee, MD

Gastroenterology (Gastroenterology Physician)

  • Medicare participating

At a glance

Years since graduation
45
In the NPI registry since
2006
Medicare patients seen, 2024
456

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

  • 1981Medical school: Creighton University School of Medicine
  • 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

  • Gastroenterology Physician primary
    HI license 6606

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

Map: Gastroenterology 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
456
Services billed
726
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Biopsy of large bowel using a flexible endoscope277276
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope152143
Established patient office or other outpatient visit, 30-39 minutes10690
Removal of polyps or growths of large bowel using an endoscope with mechanical snare103102
New patient office or other outpatient visit, 45-59 minutes8484
Colorectal cancer screening; colonoscopy on individual at high risk3131
Microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope2424
Established patient office or other outpatient visit, 20-29 minutes2221
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk1717
Measurement of liver stiffness1212

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

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl)
Other prescribers in Aiea, HI
226
Omeprazole
Other prescribers in Aiea, HI
93
Famotidine
Other prescribers in Aiea, HI
61
Gavilyte-C (peg3350/sod sulf,bicarb,cl/kcl)
Other prescribers in Aiea, HI
41
Pantoprazole Sodium
Other prescribers in Aiea, HI
35
Peg-3350 And Electrolytes (peg3350/sod sulf,bicarb,cl/kcl)
Other prescribers in Aiea, HI
34
Mesalamine
Other prescribers in Aiea, HI
31
Dicyclomine Hcl
Other prescribers in Aiea, HI
19
Peg3350-Sod Sul-Nacl-Kcl-Asb-C (peg3350/sod sul/nacl/kcl/asb/c)13

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, 2 companies reported 3 payments worth $46.22 in total to this clinician.

By company
Celltrion USA Inc.$30.92
AbbVie Inc.$15.30
By type
Food and Beverage$46.22

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 Hawaii →

Other Gastroenterology clinicians in Aiea

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 6, 2024), 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 1629021241. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.