MR. JOHN SANTOS MS,CCC-SLP
NPI 1639567548
Speech-Language Pathologist in San Mateo, CA
About Mr. John Santos Ms,ccc-slp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOHN SANTOS MS,CCC-SLP (NPI 1639567548) is an individual speech-language pathologist provider in San Mateo, California, licensed in California (SP 16754) and active in the NPI registry since December 2014. He is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. John Santos Ms,ccc-slp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show John Santos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Santos's NPI number?
The NPI number for John Santos is 1639567548. It was assigned to this individual provider in the NPPES registry on December 30, 2014.
Where is John Santos located?
John Santos practices at 401 S Norfolk St #205, San Mateo, CA 94401. The listed phone number is (510) 289-3965.
What is John Santos's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is John Santos enrolled in Medicare?
Yes. John Santos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for John Santos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Santos reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Santos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Santos was last updated on June 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. John Santos, MS,CCC-SLP · NPI 1639567548
Speech-Language Pathologist provider in San Mateo, California. Individual provider, active in the CMS NPPES registry since December 30, 2014.
## Identity
- **NPI:** 1639567548 (Entity type: Individual)
- **Enumerated:** December 30, 2014
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **State license:** SP 16754 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 401 S NORFOLK ST, #205, San Mateo, CA 94401-3074
- **Phone:** (510) 289-3965
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** June 2, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1639567548) · Data from the CMS NPPES public registry.