DR. LINDA HSU A PROFESSIONAL CORPORATION
DR. LINDA HSU A PROFESSIONAL CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1609967116, based in Downey, CA. It is classified under Personal Emergency Response Attendant.
Getting there
The practice address on file is 12105 PARAMOUNT BLVD, Downey, CA 90242. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A77291 | CA | Personal Emergency Response Attendant primary |
This provider holds licence A77291 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 9931101318
- Enrollment ID
- O20070214000173
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Personal Emergency Response Attendant covers
Individuals that are specially trained to assist patients living at home with urgent/emergent situations. These individuals must be able to perform CPR and basic first aid and have sufficient counseling skills to allay fears and assist in working through processes necessary to resolve the crisis. Functions may include transportation to various facilities and businesses, contacting agencies to initiate remediation service or providing reassurance. NUCC Health Care Provider Taxonomy, code 146D00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1609967116 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 28, 2006 |
| Last updated | Mar 27, 2025 |
| Status | Active |
| Practice address |
12105 PARAMOUNT BLVD Downey, CA 90242 (562) 867-2797 |
| Mailing address |
411 E HUNTINGTON DR # 107-359 Arcadia, CA 91006 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 6 | 0 | 9 | 9 | 6 | 7 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 0 | 9 | 9 | 6 | 5 | 1 | 2 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.