Irminne Gelderloos Van Dyken, MD
Surgery Physician · Wailuku, HI
Irminne Gelderloos Van Dyken, MD is a surgery physician with a practice address in Wailuku, Hawaii, and NPI 1528221785, issued on Jul 8, 2008. Check the license on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Irminne Gelderloos Van Dyken
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- 12890 ND
TRL 10940 ND
Self-reported in NPPES; status is on the state search - Practice location
- 80 Mahalani St, Wailuku, HI 96793
- Phone
- (808) 243-6000
- Enumerated
- Jul 8, 2008
- Record last updated
- May 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140701000110); accepts Medicare assignment
- Medical or professional school
- University Of North Dakota School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 145 in Hawaii → Look up another NPI →
Also registered at 80 Mahalani St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Irminne Gelderloos Van Dyken in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average surgery physician in 2024
80 Medicare Part D claims for 55 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Gavilyte-C24 claims
- Hydrocodone-Acetaminophen22 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 Permanente Medical Group IncWailuku, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Irminne Gelderloos Van Dyken among 145 surgery physician records in Hawaii
Irminne Gelderloos Van Dyken, MD is one of 145 surgery physician records with a practice address in Hawaii. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2008 · median 2003 among the 73 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Hawaii
There are 145 surgery physician records in Hawaii.
All 145 in Hawaii → Every provider in Wailuku → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Arthur Chasen, MDWailuku, HI 967931518034909
- Douglas Cook, M.D.Wailuku, HI 967931417006560
- William Gintling, M.D.Wailuku, HI 967931205840188
- Khaled Hamzeh, M.D.Wailuku, HI 967931861682056
- Beth Jarrett, MDWailuku, HI 967931700978145
- Leonard Sakai, MDWailuku, HI 967931801997713
- Calvin Selwyn, MDWailuku, HI 967931750359725
- Andrew Tan, M.D.Wailuku, HI 967931801836580
Common questions
What is Irminne Gelderloos Van Dyken, MD's NPI number?
Irminne Gelderloos Van Dyken, MD's National Provider Identifier (NPI) is 1528221785, issued on Jul 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Irminne Gelderloos Van Dyken, MD located?
The NPPES record lists a practice address at 80 Mahalani St, Wailuku, HI, 96793. Phone: (808) 243-6000. Providers update this record themselves, so call before visiting.
How can I verify Irminne Gelderloos Van Dyken, MD's license?
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 Irminne Gelderloos Van Dyken, MD prescribe under Medicare Part D?
In 2024, Irminne Gelderloos Van Dyken, MD had 80 Medicare Part D claims for 55 beneficiaries; the average among surgery physician prescribers was 147. 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.