Individual provider

Bridget Castle, M.S. CCC-SLP

Speech-Language Pathologist

Bridget Castle, M.S. CCC-SLP is a provider specialising in Speech-Language Pathologist in Palo Alto, CA, registered under NPI 1003461732.

Getting there

Here is what surrounds this office in Palo Alto, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 0.27 mi away at Roth Way Garage. There is EV charging 0.47 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 579 ft away, served by 780 Welch Road. If you arrive early, there is a coffee shop 0.47 mi away.

725 WELCH RD, Palo Alto, CA 94304 Open in Google Maps →

Getting here and what is nearby

Transit 801 Welch Road 551 ft ~3 min
Transit 700 Welch Road 571 ft ~3 min
Transit 780 Welch Road 579 ft ~3 min
Coffee Tootsie's at the Stanford Barn 689 ft ~3 min

700 Welch Road, Palo Alto 94304-1519

Mo-Fr 06:30-15:00; Sa 10:00-15:00

+1-650-300-2298

Website

Directions in Google Maps →

Restaurant Vina Enoteca 724 ft ~3 min

700 Quarry Road, Palo Alto 94304

Website

Directions in Google Maps →

Restaurant Market Square Cafeteria 776 ft ~3 min

Mo-Su 06:00-20:00

Directions in Google Maps →

Parking Pasteur Staff Garage 1,025 ft ~4 min

1189 Welch Road, Stanford

Directions in Google Maps →

Parking Pasteur Visitor Garage A 0.23 mi ~5 min

200 Palo Alto, Palo Alto 94304

Directions in Google Maps →

Convenience Corner Store 0.27 mi ~6 min
Parking Roth Way Garage 0.27 mi ~6 min

345 Campus Drive, Stanford

Directions in Google Maps →

Restaurant Lutticken's Deli 0.30 mi ~6 min

Mo-Fr 07:30-16:00

Directions in Google Maps →

Coffee NM Cafe 0.38 mi ~8 min
Coffee Voyager Craft Coffee 0.47 mi ~10 min

389 Jane Stanford Way, Stanford 94305

Mo-Fr 07:00-17:00

+1-408-239-3484

Website

Directions in Google Maps →

EV charging Tesla Supercharger 0.47 mi ~10 min

660 Stanford Shopping Center, Palo Alto 94304

24/7

Website

Directions in Google Maps →

OpenStreetMap via Overpass · ODbL 800 m radius Updated Sep 4, 2026

Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.

Credentials and Medicare

State licence
LicenceStateSpecialty
32394 CA Speech-Language Pathologist primary

This provider holds licence 32394 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)

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
Speech, Language and Hearing Service Providers ›Speech-Language Pathologist

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.

CodeSpecialtyLicenceState
235Z00000X Speech-Language Pathologist 32394 CA primary
235Z00000X Speech-Language Pathologist — —

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.

NPI1003461732 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 8, 2019
Last updatedOct 19, 2021
StatusActive
Sole proprietorNo
GenderFemale
CredentialM.S. CCC-SLP
Practice address 725 WELCH RD
Palo Alto, CA 94304
(650) 497-8000
The last update on file is Oct 19, 2021. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1003461732 passes the NPI check digit test The final digit 2 matches the value computed from the first nine digits, so this is a well-formed NPI.
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 6 1 7 3
Doubled? — ×2 — ×2 — ×2 — ×2 — ×2 — ×2 — ×2
Value 8 0 8 8 0 2 0 0 3 8 6 2 7 6

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.

Common questions

What is NPI number 1003461732?
NPI 1003461732 is the National Provider Identifier assigned to Bridget Castle, M.S. CCC-SLP in Palo Alto, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Speech-Language Pathologist cover?
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…
How do I contact Bridget Castle, M.S. CCC-SLP?
The phone number on file with NPPES is (650) 497-8000, last updated Oct 19, 2021. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Where do I park when visiting Bridget Castle, M.S. CCC-SLP?
Parking is about 0.27 mi from the office (Roth Way Garage). The closest transit stop is 579 ft away, on 780 Welch Road. Distances are straight-line estimates from OpenStreetMap, so walking routes may be slightly longer.
Is NPI 1003461732 a valid number?
Yes. 1003461732 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.