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Internal Medicine

Donald Nikaitani, MD

Works at hospitals in Kealakekua, HI · Hawaii

Summary

Dr. Donald Nikaitani, MD is an internal medicine doctor at 75 -137 Hualalai Rd, Kailua Kona, HI 96740. Phone: (808) 329-1340. Accepts Medicare assignment. In 2024, Donald Nikaitani had 251 Original Medicare patients and 1,332 services. NPI 1700811718. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 75 -137 Hualalai Rd, Kailua Kona, HI 96740 · Directions
  • Phone: (808) 329‑1340
  • Medicare: Accepts Medicare assignment
  • Hospital: Kona Community Hospital
  • Group practice: Kona Kohala Health Care Services Inc
  • Medical school: University Of Washington School Of Medicine · graduated 1976 (50 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Donald Nikaitani, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Donald Nikaitani accept Medicare assignment?
Yes. Medicare's clinician data says Donald Nikaitani 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 Donald Nikaitani see?
In 2024, CMS data shows 251 Original Medicare patients and 1,332 services for Donald Nikaitani. This counts Original Medicare only and measures volume, not quality.
What is Donald Nikaitani's NPI number?
1700811718. 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 Donald Nikaitani, 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 patients251
Services billed to Medicare1,332
Different services or procedures10
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)546 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)515 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)195 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)44 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 pressure71%
  • Chronic kidney disease46%
  • Diabetes31%
  • Arthritis25%
  • Ischemic heart disease19%

Hospitals where Donald Nikaitani works

Medicare's Facility Affiliation Data lists Donald Nikaitani 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.

  • Kona Community HospitalKealakekua, HI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 120019

Practice locations

Addresses where Donald Nikaitani is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Donald Nikaitani as a member of this group (CMS data updated October 2, 2026).

  • Kona Kohala Health Care Services Inc2 clinicians in the group

Specialties

Find other Internal Medicine doctors in Hawaii →

Other internal medicine doctors in Kailua Kona

Clinicians with the same Medicare primary specialty in Kailua Kona, HI — not a recommendation.

All internal medicine doctors in Kailua Kona →

Other clinicians in Kona Kohala Health Care Services Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Washington School Of Medicine
Graduation year1976 (50 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1700811718
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians