Quick answers
- Does Raul R. Hernandez Chuan accept Medicare assignment?
- Yes. Medicare's clinician data says Raul R. Hernandez Chuan 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 Raul R. Hernandez Chuan see?
- In 2024, CMS data shows 103 Original Medicare patients and 324 services for Raul R. Hernandez Chuan. This counts Original Medicare only and measures volume, not quality.
- What is Raul R. Hernandez Chuan's NPI number?
- 1730120098. 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 Raul R. Hernandez Chuan, 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 | 103 |
|---|---|
| Services billed to Medicare | 324 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)189 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)69 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)15 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 cholesterol69%
- Diabetes53%
- Arthritis44%
- Chronic kidney disease25%
- Ischemic heart disease22%
Hospitals where Raul R. Hernandez Chuan works
Medicare's Facility Affiliation Data lists Raul R. Hernandez Chuan 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.
- Hospital Oncologico Dr Isaac Gonzalez MartinezSan Juan, PR · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 400012
- Presbyterian Community HospitalSan Juan, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400001
Practice locations
Addresses where Raul R. Hernandez Chuan is enrolled with Medicare (CMS data updated October 2, 2026).
- Ashford Medical Ctr, 29 Calle Washington Street Suite 102San Juan, PR 00907 (787) 725‑4945
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730120098 |
| 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