Charles Duke
Emergency Medicine Physician · Kailua, HI
Charles Duke is an emergency medicine physician with a practice address in Kailua, Hawaii, and NPI 1346603206, issued on Mar 29, 2016. Check the license (Hawaii MD-21775, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Charles Duke
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD-21775 HI
Self-reported in NPPES; status is on the state search - Practice location
- 407 Uluniu St Ste 411, Kailua, HI 96734
- Phone
- (808) 263-7202
- Enumerated
- Mar 29, 2016
- Record last updated
- Apr 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20210806000868); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 370 in Hawaii → Look up another NPI →
Also registered at 407 Uluniu St Ste 411
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Bottorff, M.D.Emergency Medicine Physician1437342060
- Ryan Conklin, MDEmergency Medicine Physician1104405117
- Jessica Duke, MDEmergency Medicine Physician1972941102
- Tiffany Gromlich, MDEmergency Medicine Physician1033386990
- Zachary Martin, MDEmergency Medicine Physician1124648738
- Steven Mates, DOEmergency Medicine Physician1104939362
Verify Charles Duke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-21775Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average emergency medicine physician in 2024
206 Medicare Part D claims for 134 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 25 claims were for opioids.
Most prescribed
- Ondansetron Odt17 claims
- Oxycodone Hcl16 claims
- Amoxicillin-Clavulanate Potass15 claims
- Ibuprofen15 claims
- Cephalexin12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Hawaii Emergency Physicians Associated IncKailua, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Duke among 370 emergency medicine physician records in Hawaii
Charles Duke is one of 370 emergency medicine physician records with a practice address in Hawaii. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2016 · median 2012 among the 202 with a school on file
- Record last updated2024 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 emergency medicine physician records list a practice address in Kailua
They are 64 of the 1,421 NPPES records with a practice address in Kailua, and 370 emergency medicine physician records in Hawaii.
All 370 in Hawaii → Every provider in Kailua → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Audrius Aglinskas, M.D.Kailua, HI 967341295833481
- Philip Chung, MDKailua, HI 967341417066747
- Katherine Heinzen Jim, M.D.Kailua, HI 967341821032822
- Lisa Hendrickson, M.D.Kailua, HI 967341710918990
- Christopher King, M.D.Kailua, HI 967341093814568
- Kendrick Lee, M.D.Kailua, HI 967341265531776
- Steven Mates, DOKailua, HI 967341104939362
- Joseph Pollard, D.O.Kailua, HI 967341386677003
Common questions
What is Charles Duke's NPI number?
Charles Duke's National Provider Identifier (NPI) is 1346603206, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Charles Duke located?
The NPPES record lists a practice address at 407 Uluniu St Ste 411, Kailua, HI, 96734. Phone: (808) 263-7202. Providers update this record themselves, so call before visiting.
How can I verify Charles Duke's license?
NPPES lists Hawaii license number MD-21775, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles Duke prescribe under Medicare Part D?
In 2024, Charles Duke had 206 Medicare Part D claims for 134 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.