Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Irminne Gelderloos Van Dyken, MD

Individual provider Surgery Physician · NPI 1528221785

Mrs. Irminne Gelderloos Van Dyken, MD practises General Surgery in Wailuku, Hawaii. Graduated from University of North Dakota School of Medicine in 2008, 18 years ago. Practices with Hawaii Permanente Medical Group Inc, a 705-clinician group and accepts Medicare assignment. Licensed in North Dakota.

Years since qualifying
18
Trained at
University of North Dakota School of Medicine
Licensed in
ND
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

80 Mahalani St
Wailuku, HI 96793-2531
Phone: (808) 243-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 12890 (ND)
Surgery Physician Taxonomy 208600000X · Licence TRL 10940 (ND)

Record details

NPI number1528221785
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2008
Last updated in NPPESMay 7, 2021
Certification dateMay 7, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Hawaii Permanente Medical Group Inc — 705 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hawaii Permanente Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 705 clinicians in the practice; 12 are shown here.

Other providers in Wailuku