Quick answers
- Does Marvin C. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Marvin C. Chang 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 Marvin C. Chang see?
- In 2024, CMS data shows 597 Original Medicare patients and 6,066 services for Marvin C. Chang. This counts Original Medicare only and measures volume, not quality.
- What is Marvin C. Chang's NPI number?
- 1518910769. 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 Marvin C. Chang, 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 | 597 |
|---|---|
| Services billed to Medicare | 6,066 |
| Different services or procedures | 55 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)2,544 services
- Assessment of emotional or behavioral problems (96127)779 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)310 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)163 services
- Injection of substance into lower spine canal using imaging guidance (62323)114 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%
- Arthritis75%
- Diabetes39%
- Ischemic heart disease36%
- Anxiety32%
Hospitals where Marvin C. Chang works
Medicare's Facility Affiliation Data lists Marvin C. Chang 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.
- Houston Methodist Sugar Land HospitalSugar Land, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450820
Practice locations
Addresses where Marvin C. Chang is enrolled with Medicare (CMS data updated October 2, 2026).
- 3176 Poipu Rd, Suite 2Koloa, HI 96756 (808) 378‑4439
- 500 Ala Moana Blvd, Suite 4 445Honolulu, HI 96813 (808) 358‑6200
Group practices
Medicare enrollment lists Marvin C. Chang as a member of this group (CMS data updated October 2, 2026).
- Excel Spine and Orthopedic Institute LLC10 clinicians in the group
Specialties
- Interventional Pain Managementprimary
- Anesthesiologyalso
Find other Interventional Pain Management doctors in Hawaii →
Other interventional pain specialists in Hawaii
Clinicians with the same Medicare primary specialty in Hawaii — not a recommendation.
Other clinicians in Excel Spine and Orthopedic Institute LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1518910769 |
| 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