Jennifer Fan
Jennifer Fan is a provider specialising in Speech-Language Pathologist in South San Francisco, CA, registered under NPI 1003596743. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in South San Francisco, based on OpenStreetMap data collected Oct 9, 2026. Parking is available about 0.39 mi away. There is EV charging 0.43 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 829 ft away, served by King Drive & Gellert Boulevard. A pharmacy sits 0.51 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.44 mi away.
Getting here and what is nearby
Transit King Drive & Fairfax Way 406 ft ~2 min
Transit King Drive & Camelot Court 553 ft ~3 min
Transit King Drive & Gellert Boulevard 829 ft ~4 min
Parking 0.34 mi ~7 min
Parking 0.35 mi ~8 min
Parking 0.39 mi ~8 min
Grocery Safeway 0.40 mi ~9 min
2255 Gellert Boulevard, South San Francisco 94080
Mo-Su 05:00-24:00
EV charging 0.43 mi ~9 min
Restaurant Five Guys 0.43 mi ~9 min
2278 Westborough Boulevard, South San Francisco 94080
11:00-21:30
Coffee Quickly 0.44 mi ~9 min
2288 Westborough Boulevard, South San Francisco 94080
12:30-21:00
Restaurant McDonald's 0.46 mi ~10 min
2298 Gellert Boulevard, South San Francisco 94080-5411
06:00-22:00
Gas station Arco 0.48 mi ~10 min
Restaurant Subway 0.48 mi ~10 min
2296 Westborough Boulevard, South San Francisco 94080
Mo-Fr 07:00-22:00; Sa 08:00-21:00; Su 09:00-21:00
Gas station Fuel 24:7 0.49 mi ~10 min
Pharmacy Walgreens 0.51 mi ~11 min
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 |
|---|---|---|
| 29840 | CA | Speech-Language Pathologist primary |
This provider holds licence 29840 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 Speech-Language Pathologist covers
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing. NUCC Health Care Provider Taxonomy, code 235Z00000X
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 | 1003596743 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 18, 2023 |
| Last updated | Jul 18, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
3924 RESTON CT South San Francisco, CA 94080 (415) 408-8281 |
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 | 5 | 9 | 6 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 9 | 3 | 7 | 8 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.