Melissa De Leon
Melissa De Leon is a Family Medicine Physician in San Jose, CA, registered under NPI 1003478637.
Getting there
Here is what surrounds this office in San Jose, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 563 ft away. The nearest transit stop is 855 ft away, served by South 1st Street & Oak Street. A pharmacy sits 667 ft from the entrance (Farmacia Doña Remedios), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 988 ft away.
Getting here and what is nearby
Parking 169 ft ~1 min
Parking 271 ft ~2 min
Restaurant Mike Pizza & Taqueria 445 ft ~2 min
Parking 563 ft ~3 min
Convenience Central Gas San Jose 639 ft ~3 min
150 Willow Street, San Jose 95110
Gas station Central Gas San Jose 623 ft ~3 min
150 Willow Street, San Jose 95110
Restaurant La Mejor Taqueria #2 626 ft ~3 min
102 Willow Street, San Jose 95110
Transit Willow Street & South Almaden Avenue 702 ft ~3 min
Pharmacy Farmacia Doña Remedios 667 ft ~3 min
201 Willow Street, San Jose 95110
Transit Willow Street & South Almaden Avenue 720 ft ~3 min
Convenience Willow Market 730 ft ~3 min
215 Willow Street, San Jose 95110
Grocery Arteaga's Food Center 777 ft ~3 min
204 Willow Street, San Jose 95110
Transit South 1st Street & Oak Street 855 ft ~4 min
Restaurant Wienerschnitzel 823 ft ~4 min
Coffee Trine's Cafe 988 ft ~4 min
Convenience Discoteca Mini 1,002 ft ~4 min
999 South 1st Street, San Jose 95110
Gas station Valero 1,010 ft ~4 min
827 South 1st Street, San Jose 95110
Grocery Artega's 992 ft ~4 min
Gas station Express Gas 0.26 mi ~6 min
1098 South 1st Street, San Jose 95110
Hotel Hotel Elan 0.37 mi ~8 min
1215 South 1st Street, San Jose 95110
Hotel Travelers Rest Motel 0.47 mi ~10 min
1315 South 1st Street, San Jose 95110
Hotel City Center Motel 0.48 mi ~10 min
45 East Reed Street, San Jose 95112
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 95010593 | CA | Family Medicine Physician primary |
This provider holds licence 95010593 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003478637 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 3, 2019 |
| Last updated | Jul 3, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
100 OAK ST RM F-3 San Jose, CA 95110 (408) 295-0950 |
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 | 0 | 0 | 3 | 4 | 7 | 8 | 6 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 7 | 6 | 6 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
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.