Gerardo Alcantara, DPM
Gerardo Alcantara, DPM is a provider specialising in Foot & Ankle Surgery Podiatrist in Chula Vista, CA, registered under NPI 1801598552. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 345 F ST STE 100, Chula Vista, CA 91910. 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 |
|---|---|---|
| E6268 | CA | Foot & Ankle Surgery Podiatrist primary |
This provider holds licence E6268 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 Foot & Ankle Surgery covers
Definition to come... NUCC Health Care Provider Taxonomy, code 213ES0103X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — | |
| 213ES0103X | Foot & Ankle Surgery Podiatrist Foot & Ankle Surgery | E6268 | CA | primary |
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 | 1801598552 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 20, 2023 |
| Last updated | Jul 28, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DPM |
| Practice address |
345 F ST STE 100 Chula Vista, CA 91910 (619) 427-3481 |
| Mailing address |
4101 CHARLOTTE AVE STE F185 Nashville, TN 37209 |
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 | 0 | 1 | 5 | 9 | 8 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 0 | 1 | 1 | 9 | 7 | 5 | 1 |
Sum = 58 · next multiple of 10 = 60 · 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.