Andrea Chua Dy, FNP-BC
NPI 1821869231 · Family Medicine Physician · Buena Park, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrea Chua Dy, FNP-BC is a Family Medicine Physician provider in Buena Park, CA (NPI 1821869231).
Provider details
- NPI number
- 1821869231
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 95023232 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
2 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
193 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 76 | $137 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 60 | $97 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 33 | $138 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 24 | $67 |
Typical Medicare-allowed amounts for these services range $67–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-01-15
- Last updated
- 2024-02-16
- Certified
- 2024-02-16
Frequently asked questions
- What is Andrea Chua Dy's NPI number?
- Andrea Chua Dy's National Provider Identifier (NPI) is 1821869231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrea Chua Dy's specialty?
- Andrea Chua Dy is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrea Chua Dy located?
- Andrea Chua Dy's practice location on file with NPPES is 5751 Stanton Ave, Buena Park, CA 90621-2143.
- What is Andrea Chua Dy's phone number?
- The practice phone number listed in the NPPES registry for Andrea Chua Dy is (909) 702-8820.
- Does Andrea Chua Dy accept Medicare?
- Andrea Chua Dy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrea Chua Dy's NPI active?
- Yes — Andrea Chua Dy's NPI (1821869231) is active in the NPPES registry as of the last update on 2024-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.