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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CYNTHIA ELIZABETH KNIGHTON MS., CCC-SLP
NPI 1750868709
Speech-Language Pathologist in Guaynabo, PR

Active since July 23, 2018
2050 CARR 8177 APT 705, GUAYNABO, PR 00966(269) 832-2993 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 29, 2026, Oct 12, 2022, Jul 23, 2018 (3 updates tracked since 2018).

About Cynthia Elizabeth Knighton Ms., Ccc-slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CYNTHIA ELIZABETH KNIGHTON MS., CCC-SLP (NPI 1750868709) is an individual speech-language pathologist provider in Guaynabo, Puerto Rico, licensed in Michigan (7101005346) and active in the NPI registry since July 2018. She is a graduate of Other (2016).

NPPES Registry Identity

NPI1750868709
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameCYNTHIA ELIZABETH KNIGHTONCredential: MS., CCC-SLP
Location Address2050 CARR 8177 APT 705Guaynabo, PR 00966-3757
Mailing Address8227 44th Ave W Ste EMukilteo, WA 98275-2848 · (269) 832-2993
Phone(269) 832-2993
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateJuly 23, 2018
Last NPPES UpdateSeptember 29, 20263 updates tracked since enumeration
NPPES CertifiedOctober 12, 2022
✔ NPI 1750868709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
Licenses✔ Licensed in MI · 7101005346✔ Licensed in MI · 14089771✔ Licensed in WA · 14089771
Definition
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.

Other Names 1

Former Name (1)Cynthia Elizabeth Barrett

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cynthia Elizabeth Knighton Ms., Ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5395156665
PECOS Enrollment IDI20201118001932

Medicare Billing Reassignment

Medicare enrollment records show Cynthia Knighton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Speech For Success, LLC
Hearing and Speech
8227 44TH AVE W STE E
Mukilteo, WA 98275
  • Reassigned Medicare billing, Washington enrollment
NPI 1568070753 (425) 405-0837

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Treatment of speech, language, voice, communication, and/or hearing processing disorder 92507
This treatment involves working with a specialist to improve communication skills. It could involve exercises to enhance speech clarity, language understanding, voice volume, or hearing comprehension. The goal is to enhance your ability to express and understand others effectively.
138 services16 patients
Evaluation of speech sound production with evaluation of language comprehension and expression 92523
This service involves assessing your ability to produce speech sounds and understand language. It also evaluates your ability to express yourself through language. It's a comprehensive review of your communication skills to identify any potential issues.
11 services11 patients

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 Cynthia Knighton's NPI number?

The NPI number for Cynthia Knighton is 1750868709. It was assigned to this individual provider in the NPPES registry on July 23, 2018. The provider is also known as Cynthia Elizabeth Barrett.

Where is Cynthia Knighton located?

Cynthia Knighton practices at 2050 Carr 8177 Apt 705, Guaynabo, PR 00966. The listed phone number is (269) 832-2993.

What is Cynthia Knighton's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Cynthia Knighton enrolled in Medicare?

Yes. Cynthia Knighton is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Cynthia Knighton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Knighton reassigns Medicare benefits to Speech For Success, LLC (Mukilteo, WA). 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 Cynthia Knighton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cynthia Knighton accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Cynthia Knighton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cynthia Knighton was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.