Maribel Serrano, M.S., CCC-SLP
Maribel Serrano, M.S., CCC-SLP is a provider specialising in Speech-Language Pathologist in San Francisco, CA, registered under NPI 1003150087. 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 San Francisco, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.41 mi away at 1635 Divisadero Garage. There is EV charging 0.48 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 466 ft away, served by McAllister Street & Divisadero Street. A pharmacy sits 0.45 mi from the entrance (Round Medical Supply and Uniforms), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 973 ft away.
Getting here and what is nearby
Parking 214 ft ~1 min
Restaurant Primo Pizza 221 ft ~1 min
Restaurant Brenda's Meat & Three 317 ft ~2 min
919 Divisadero Street, San Francisco 94115
Mo-Su 08:00-21:00
Transit Divisadero Street & McAllister Street 410 ft ~2 min
Transit Turk Street & Broderick Street 447 ft ~2 min
Convenience Save More Liquor and Grocery 441 ft ~2 min
1598 McAllister Street, San Francisco 94117
Transit McAllister Street & Divisadero Street 466 ft ~2 min
Convenience Transfer Market 501 ft ~2 min
Restaurant Kung Food 491 ft ~2 min
Grocery Green Earth 521 ft ~2 min
Coffee Boba Guys 615 ft ~3 min
836 Divisadero Street
Convenience Pearl Market 618 ft ~3 min
1201 Divisadero Street
Parking 714 ft ~3 min
Coffee Eddie's Cafe 776 ft ~3 min
Coffee Matching Half Cafe 973 ft ~4 min
Pharmacy Walgreens 0.23 mi ~5 min
1363 Divisadero Street
Hotel Chateau Tivoli Bed and Breakfeast 0.28 mi ~6 min
Grocery Bi-Rite Market 0.30 mi ~7 min
Gas station Arco 0.37 mi ~8 min
Gas station 76 0.37 mi ~8 min
Grocery Falletti Foods 0.39 mi ~8 min
Parking 1635 Divisadero Garage 0.41 mi ~9 min
2451 Sutter Street
Hotel The Grove Inn 0.44 mi ~9 min
890 Grove Street, San Francisco 94117
Pharmacy Round Medical Supply and Uniforms 0.45 mi ~9 min
Hotel Metro Hotel 0.46 mi ~10 min
EV charging Tesla Supercharger 0.48 mi ~10 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 |
|---|---|---|
| 18977 | CA | Speech-Language Pathologist primary |
This provider holds licence 18977 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 | 1003150087 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 15, 2012 |
| Last updated | Sep 28, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.S., CCC-SLP |
| Practice address |
1023 DIVISADERO ST San Francisco, CA 94115 (415) 226-7049 |
| Other names |
Maribel Holder Doing Business As |
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 | 1 | 5 | 0 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 5 | 0 | 0 | 7 |
Sum = 43 · next multiple of 10 = 50 · 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.