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CAILYN MARY O'NEIL SLP-CF
NPI 1689356529
Speech-Language Pathologist in Denver, CO

Active since August 01, 2023Accepts Medicare Assignment
3815 VALLEJO ST, DENVER, CO 80211(401) 787-5317 Get Directions Write a Review

NPPES record last updated: August 1, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Cailyn Mary O'neil Slp-cf NPPES

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

CAILYN MARY O'NEIL SLP-CF (NPI 1689356529) is an individual speech-language pathologist provider in Denver, Colorado, licensed in Colorado (PSLP.0001135) and active in the NPI registry since August 2023. She is a graduate of Baylor College Of Medicine (2022).

NPPES Registry Identity

NPI1689356529
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameCAILYN MARY O'NEILCredential: SLP-CF
Location Address3815 VALLEJO STDenver, CO 80211-2153
Mailing Address3815 Vallejo StDenver, CO 80211-2153 · (401) 787-5317
Phone(401) 787-5317
Sole ProprietorNo
Medical School CMSBaylor College Of MedicineGraduated 2022
Enumeration DateAugust 1, 2023
NPPES CertifiedAugust 1, 2023
✔ NPI 1689356529 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
License✔ Licensed in CO · PSLP.0001135
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.
3815 VALLEJO ST, Denver, CO 80211
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

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

Cailyn Mary O'neil Slp-cf 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.

PECOS PAC ID6406312990
PECOS Enrollment IDI20260724003443

Medicare Billing Reassignment

Medicare enrollment records show Cailyn O'neil reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Redmond Speech & Language Total Communication Services, LLC
886 mi
Speech-Language Pathologist
326 SW 7TH ST
Redmond, OR 97756
  • Reassigned Medicare billing, Oregon enrollment
  • 14 clinicians in this Medicare group
NPI 1902170343 (541) 316-8004

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 Cailyn O'neil's NPI number?

The NPI number for Cailyn O'neil is 1689356529. It was assigned to this individual provider in the NPPES registry on August 1, 2023.

Where is Cailyn O'neil located?

Cailyn O'neil practices at 3815 Vallejo St, Denver, CO 80211. The listed phone number is (401) 787-5317.

What is Cailyn O'neil's specialty?

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

Is Cailyn O'neil enrolled in Medicare?

Yes. Cailyn O'neil 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 Cailyn O'neil's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cailyn O'neil reassigns Medicare benefits to Redmond Speech & Language Total Communication Services, LLC (Redmond, OR). 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 Cailyn O'neil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cailyn O'neil accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Cailyn O'neil 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 Cailyn O'neil was last updated on August 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.