Quick answers
- Does Andrea K. Chua Dy accept Medicare assignment?
- Yes. Medicare's clinician data says Andrea K. Chua Dy 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 Andrea K. Chua Dy see?
- In 2024, CMS data shows 33 Original Medicare patients and 236 services for Andrea K. Chua Dy. This counts Original Medicare only and measures volume, not quality.
- What is Andrea K. Chua Dy's NPI number?
- 1821869231. 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 Andrea K. Chua Dy, 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 | 33 |
|---|---|
| Services billed to Medicare | 236 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)109 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)60 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)24 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%
- Diabetes73%
- High cholesterol70%
- Depression64%
- Anxiety64%
- Alzheimer's disease or dementia55%
Hospitals where Andrea K. Chua Dy works
Medicare's Facility Affiliation Data lists Andrea K. Chua Dy 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.
- Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051333
Practice locations
Addresses where Andrea K. Chua Dy is enrolled with Medicare (CMS data updated October 2, 2026).
- 18650 Macarthur BlvdIrvine, CA 92612 (412) 996‑9012
- 2321 Newburg RdFortuna, CA 95540 (707) 445‑3261
- 2353 23rd StEureka, CA 95501 (707) 445‑3261
Group practices
Medicare enrollment lists Andrea K. Chua Dy as a member of these groups (CMS data updated October 2, 2026).
- Altea Medical California PC85 clinicians in the group
- Dazzle Health P C29 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Irvine
Clinicians with the same Medicare primary specialty in Irvine, CA — not a recommendation.
Other clinicians in Altea Medical California PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821869231 |
| 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