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Emergency Medicine

Lily L. Gallagher, MD

Works at hospitals in Aiea, HI · Hawaii

Summary

Dr. Lily L. Gallagher, MD is an emergency medicine doctor at 347 N Kuakini St, Honolulu, HI 96817. Phone: (808) 547-9105. Accepts Medicare assignment. In 2024, Lily L. Gallagher had 549 Original Medicare patients and 676 services. NPI 1538198916. 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: 347 N Kuakini St, Honolulu, HI 96817 · Directions
  • Phone: (808) 547‑9105
  • Medicare: Accepts Medicare assignment
  • Hospital: Pali Momi Medical Center
  • Group practice: Hawaiian Island Clinics
  • Medical school: University Of Hawaii John A. Burns School Of Medicine · graduated 2000 (26 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lily L. Gallagher, 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 Lily L. Gallagher accept Medicare assignment?
Yes. Medicare's clinician data says Lily L. Gallagher 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 Lily L. Gallagher see?
In 2024, CMS data shows 549 Original Medicare patients and 676 services for Lily L. Gallagher. This counts Original Medicare only and measures volume, not quality.
What is Lily L. Gallagher's NPI number?
1538198916. 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 Lily L. Gallagher, 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 patients549
Services billed to Medicare676
Different services or procedures26
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)223 services
  2. Emergency department visit with moderate level of medical decision making (99284)184 services
  3. Critical care, first 30-74 minutes (99291)122 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)78 services
  5. Emergency department visit with low level of medical decision making (99283)36 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 cholesterol75%
  • Chronic kidney disease51%
  • Diabetes44%
  • Arthritis39%
  • Ischemic heart disease30%

Hospitals where Lily L. Gallagher works

Medicare's Facility Affiliation Data lists Lily L. Gallagher 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.

  • Pali Momi Medical CenterAiea, HI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 120026

Practice locations

Addresses where Lily L. Gallagher is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lily L. Gallagher as a member of this group (CMS data updated October 2, 2026).

  • Hawaiian Island Clinics12 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Hawaii →

Other emergency medicine doctors in Honolulu

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

All emergency medicine doctors in Honolulu →

Other clinicians in Hawaiian Island Clinics

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

Clinician information

CredentialMD
Medical schoolUniversity Of Hawaii John A. Burns School Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538198916
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