ALTCARE WILLOW CREEK INC.
ALTCARE WILLOW CREEK INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1851143002, based in Castro Valley, CA. It is classified under Alzheimer Center (Dementia Center).
Getting there
The practice address on file is 22424 CHARLENE WAY, Castro Valley, CA 94546. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Alzheimer Center (Dementia Center) covers
A freestanding facility or special care unit of a long term care facility focusing on patient care of individuals diagnosed with dementia or Alzheimer's Disease or their related diseases. Six elements of the facility/unit set it apart from other (the rest of the) facilities(y): Admission of residents with dementia (including those with Alzheimer's disease); Staff who are specially selected, trained, and supervised; Activities that are specifically designed for the cognitively impaired; A marketing of a special care unit in brochures; A high level of family involvement; and A physical environment designed to keep residents safe and segregated from other populations. NUCC Health Care Provider Taxonomy, code 311500000X
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 | 1851143002 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 2, 2024 |
| Last updated | Apr 2, 2024 |
| Status | Active |
| Practice address |
22424 CHARLENE WAY Castro Valley, CA 94546 (510) 889-1300 |
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 | 8 | 5 | 1 | 1 | 4 | 3 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 1 | 1 | 2 | 4 | 6 | 0 | 0 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.