Quick answers
- Does Martin R. Engel accept Medicare assignment?
- Yes. Medicare's clinician data says Martin R. Engel accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Martin R. Engel see?
- In 2024, CMS data shows 829 Original Medicare patients and 1,317 services for Martin R. Engel. This counts Original Medicare only and measures volume, not quality.
- What is Martin R. Engel's NPI number?
- 1578583431. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Martin R. Engel, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 829 |
|---|---|
| Services billed to Medicare | 1,317 |
| Different services or procedures | 132 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- X-ray of chest, 1 view (71045)218 services
- Ct scan head or brain without contrast (70450)138 services
- Ct scan of abdomen and pelvis with contrast (74177)59 services
- X-ray of chest, 2 views (71046)55 services
- X-ray of foot, minimum of 3 views (73630)35 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure74%
- Arthritis41%
- Chronic kidney disease32%
- Diabetes29%
- Heart failure24%
Hospitals where Martin R. Engel works
Medicare's Facility Affiliation Data lists Martin R. Engel at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Kauai Veterans Memorial HospitalWaimea, HI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 121300
- Samuel Mahelona Memorial HospitalKapaa, HI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 121306
- Wilcox Memorial HospitalLihue, HI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 120014
Practice locations
Addresses where Martin R. Engel is enrolled with Medicare (CMS data updated October 2, 2026).
- 2829 Ala Kalani Kaumaka St, Suite B 201Koloa, HI 96756 (808) 742‑0999
- 3-3420 Kuhio Hwy, Suite BLihue, HI 96766 (808) 245‑1500
- 4643 Waimea Canyon DrWaimea, HI 96798 (808) 338‑9431
Group practices
Medicare enrollment lists Martin R. Engel as a member of these groups (CMS data updated October 2, 2026).
- Kauai Medical Clinic147 clinicians in the group
- Samuel Mahelona Memorial Hospital47 clinicians in the group
- Kauai Veterans Memorial Hospital17 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Hawaii
Clinicians with the same Medicare primary specialty in Hawaii — not a recommendation.
Other clinicians in Kauai Medical Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578583431 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians