Quick answers
- Does Charnes S. Chiu accept Medicare assignment?
- Yes. Medicare's clinician data says Charnes S. Chiu 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 Charnes S. Chiu see?
- In 2024, CMS data shows 375 Original Medicare patients and 1,634 services for Charnes S. Chiu. This counts Original Medicare only and measures volume, not quality.
- What is Charnes S. Chiu's NPI number?
- 1548290869. 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 Charnes S. Chiu, 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 | 375 |
|---|---|
| Services billed to Medicare | 1,634 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)400 services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)220 services
- Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)218 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)203 services
- Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)203 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 disease75%
- Diabetes58%
- Arthritis48%
- Ischemic heart disease36%
Hospitals where Charnes S. Chiu works
Medicare's Facility Affiliation Data lists Charnes S. Chiu 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.
- CHRISTUS St Vincent Regional Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 320002
- Holy Cross Hospital a Div of Taos Health SystemsTaos, NM · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 321310
- Los Alamos Medical CenterLos Alamos, NM · Acute Care Hospital · Emergency services: listed by Medicare · CCN 320033
- Presbyterian Espanola HospitalEspanola, NM · Acute Care Hospital · Emergency services: listed by Medicare · CCN 320011
- Presbyterian Santa Fe Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 320090
Practice locations
Addresses where Charnes S. Chiu is enrolled with Medicare (CMS data updated October 2, 2026).
- 2904 Rodeo Park Dr E, Suite 300bSanta Fe, NM 87505 (505) 216‑3466
Group practices
Medicare enrollment lists Charnes S. Chiu as a member of this group (CMS data updated October 2, 2026).
- Nephrophiles LLC5 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in New Mexico
Clinicians with the same Medicare primary specialty in New Mexico — not a recommendation.
Other clinicians in Nephrophiles LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 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) | 1548290869 |
| 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