Quick answers
- Does Loi M. Chang-Stroman accept Medicare assignment?
- Yes. Medicare's clinician data says Loi M. Chang-Stroman 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 Loi M. Chang-Stroman see?
- In 2024, CMS data shows 744 Original Medicare patients and 2,434 services for Loi M. Chang-Stroman. This counts Original Medicare only and measures volume, not quality.
- What is Loi M. Chang-Stroman's NPI number?
- 1780770529. 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 Loi M. Chang-Stroman, 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 | 744 |
|---|---|
| Services billed to Medicare | 2,434 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)443 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)396 services
- Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected (0241U)214 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)124 services
- Urinalysis, manual test (81002)106 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 cholesterol69%
- High blood pressure60%
- Arthritis37%
- Ischemic heart disease20%
- Diabetes18%
- Chronic kidney disease16%
Hospitals where Loi M. Chang-Stroman works
Medicare's Facility Affiliation Data lists Loi M. Chang-Stroman 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 Loi M. Chang-Stroman is enrolled with Medicare (CMS data updated October 2, 2026).
- 77 -311 Sunset DrKailua Kona, HI 96740 (808) 329‑6355
Group practices
Medicare enrollment lists Loi M. Chang-Stroman as a member of this group (CMS data updated October 2, 2026).
- Joy a McElroy M D Inc3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Kailua Kona
Clinicians with the same Medicare primary specialty in Kailua Kona, HI — not a recommendation.
Other clinicians in Joy a McElroy M D Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Howard University College Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780770529 |
| 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