Lucy Montalvo-hicks, MD,MPH
Lucy Montalvo-hicks, MD,MPH is a Pediatric Neurodevelopmental Disabilities Physician in San Diego, CA, registered under NPI 1528211885. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 4355 RUFFIN RD, San Diego, CA 92123. 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 |
|---|---|---|
| A4356 | CA | Pediatric Neurodevelopmental Disabilities… primary |
This provider holds licence A4356 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Neurodevelopmental Disabilities covers
A pediatrician who specializes in the treatment of individuals with developmental delays and learning disorders associated with cerebral palsy, spina bifida, autism, and other chronic neurologic conditions. NUCC Health Care Provider Taxonomy, code 2080P0008X
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1528211885 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 30, 2008 |
| Last updated | Oct 30, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MD,MPH |
| Practice address |
4355 RUFFIN RD San Diego, CA 92123 (858) 576-2851 |
| Mailing address |
1114 ANZA AVE Vista, CA 92084 |
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 | 5 | 2 | 8 | 2 | 1 | 1 | 8 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 4 | 8 | 4 | 1 | 2 | 8 | 7 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
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.