Quick answers
- Does Marvin L. Sunpongco accept Medicare assignment?
- Yes. Medicare's clinician data says Marvin L. Sunpongco 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 L. Sunpongco see?
- In 2024, CMS data shows 117 Original Medicare patients and 1,044 services for Marvin L. Sunpongco. This counts Original Medicare only and measures volume, not quality.
- What is Marvin L. Sunpongco's NPI number?
- 1659066314. 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 L. Sunpongco, 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 | 117 |
|---|---|
| Services billed to Medicare | 1,044 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 51 |
Most frequent services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)954 services
- Electrocardiogram (ecg) 1 to 3 leads with review by physician (93040)70 services
- Psychiatric diagnostic evaluation with medical services (90792)14 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).
- Anxiety70%
- High cholesterol69%
- High blood pressure68%
- Depression50%
- Heart failure31%
- Diabetes27%
Practice locations
Addresses where Marvin L. Sunpongco is enrolled with Medicare (CMS data updated October 2, 2026).
- 1605 Valle Del SolRedlands, CA 92373
- 414 Tennessee St, Suite XxRedlands, CA 92373 (909) 475‑7371
Group practices
Medicare enrollment lists Marvin L. Sunpongco as a member of this group (CMS data updated October 2, 2026).
- Jun R. Chiong, MD, MPH, Inc.10 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Redlands
Clinicians with the same Medicare primary specialty in Redlands, CA — not a recommendation.
Other clinicians in Jun R. Chiong, MD, MPH, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659066314 |
| 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
- 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