Quick answers
- Does Jon M. Portis accept Medicare assignment?
- Yes. Medicare's clinician data says Jon M. Portis 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 Jon M. Portis see?
- In 2024, CMS data shows 976 Original Medicare patients and 3,291 services for Jon M. Portis. This counts Original Medicare only and measures volume, not quality.
- What is Jon M. Portis's NPI number?
- 1073615514. 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 Jon M. Portis, 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 | 976 |
|---|---|
| Services billed to Medicare | 3,291 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient complete exam of visual system (92014)817 services
- Established patient problem focused exam of visual system (92012)445 services
- Photography of the retina (92250)373 services
- Imaging of retina (92134)308 services
- Exam of visual field with extended testing (92083)292 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%
- Chronic kidney disease33%
- Diabetes32%
- Osteoporosis30%
- Arthritis29%
Hospitals where Jon M. Portis works
Medicare's Facility Affiliation Data lists Jon M. Portis 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.
- The Queens Medical CenterHonolulu, HI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 120001
Practice locations
Addresses where Jon M. Portis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1380 Lusitana St, Suite 714Honolulu, HI 96813 (808) 528‑5333
Group practices
Medicare enrollment lists Jon M. Portis as a member of this group (CMS data updated October 2, 2026).
- Shigemi Sugiki MD and Jon M Portis MD, Inc.2 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Other clinicians in Shigemi Sugiki MD and Jon M Portis MD, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073615514 |
| 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