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Emergency Medicine

Andrew Frierson, DO

Works at hospitals in Kula, HI · Wailuku, HI · Hawaii

Summary

Dr. Andrew Frierson, DO is an emergency medicine doctor at 221 Mahalani St, Wailuku, HI 96793. Phone: (808) 244-9056. Accepts Medicare assignment. In 2024, Andrew Frierson had 279 Original Medicare patients and 404 services. NPI 1780125724. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 221 Mahalani St, Wailuku, HI 96793 · Directions
  • Phone: (808) 244‑9056
  • Medicare: Accepts Medicare assignment
  • Hospitals: Kula Hospital, Maui Memorial Medical Center
  • Group practice: Maui Memorial Emergency Medical Associates Inc
  • Medical school: graduated 2017 (9 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew Frierson, 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 Andrew Frierson accept Medicare assignment?
Yes. Medicare's clinician data says Andrew Frierson 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 Andrew Frierson see?
In 2024, CMS data shows 279 Original Medicare patients and 404 services for Andrew Frierson. This counts Original Medicare only and measures volume, not quality.
What is Andrew Frierson's NPI number?
1780125724. 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 Andrew Frierson, 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 patients279
Services billed to Medicare404
Different services or procedures18
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)162 services
  2. Emergency department visit with moderate level of medical decision making (99284)106 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)95 services
  4. Critical care, first 30-74 minutes (99291)19 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 blood pressure75%
  • High cholesterol72%
  • Arthritis43%
  • Chronic kidney disease38%
  • Diabetes34%
  • Ischemic heart disease32%

Hospitals where Andrew Frierson works

Medicare's Facility Affiliation Data lists Andrew Frierson 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.

  • Kula HospitalKula, HI · Critical Access Hospital · closed, according to its website · CCN 121308
  • Maui Memorial Medical CenterWailuku, HI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 120002

Practice locations

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

Group practices

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

  • Maui Memorial Emergency Medical Associates Inc22 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Hawaii →

Other emergency medicine doctors in Wailuku

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

All emergency medicine doctors in Wailuku →

Other clinicians in Maui Memorial Emergency Medical Associates Inc

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

Clinician information

CredentialDO
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1780125724
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