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OLIVIA DUNPHY
NPI 1801563911
Speech-Language Pathologist in Billings, MT

Active since August 26, 2021
2800 10TH AVE N, BILLINGS, MT 59101(406) 238-2500 Get Directions Write a Review

NPPES record last updated: August 26, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Olivia Dunphy NPPES

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

OLIVIA DUNPHY (NPI 1801563911) is an individual speech-language pathologist provider in Billings, Montana, licensed in Montana (SLP-SP-LIC-9282) and active in the NPI registry since August 2021.

NPPES Registry Identity

NPI1801563911
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameOLIVIA DUNPHY
Location Address2800 10TH AVE NBillings, MT 59101-0703
Mailing AddressPo Box 35100Billings, MT 59107-5100
Phone(406) 238-2500
Sole ProprietorNo
Enumeration DateAugust 26, 2021
NPPES CertifiedAugust 26, 2021
✔ NPI 1801563911 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 MT · SLP-SP-LIC-9282
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.
2800 10TH AVE N, Billings, MT 59101
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, 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 (PECOS)

Olivia Dunphy is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Billings Clinic
Same address
Emergency Care
2800 10TH AVE N
Billings, MT 59101
  • Reassigned Medicare billing, Montana enrollment
  • 1,264 clinicians in this Medicare group
NPI 1326104845 (406) 657-4000

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANNA VICTORIA NESOVIC DNP, FNP-BC
Nurse Practitioner (Family)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 672-0927
RODNEY JAKE TEICHROEB MD
Hospitalist
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
BILLINGS CLINIC
Pharmacy (Community/Retail Pharmacy)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2084
BILLINGS CLINIC
Nursing Facility/Intermediate Care Facility
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 657-4000
DR. HEATHER I GALE MD
Radiology (Diagnostic Radiology)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-5046
MELINDA M TRUESDELL APRN
Nurse Practitioner (Psychiatric/Mental Health)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
EMILY BERENDTS ANDERSON M.S.
Speech-Language Pathologist
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500
KORBIN JOHNSON RN
Registered Nurse (Critical Care Medicine)
2800 10TH AVE N
BILLINGS, MT 59101
Yellowstone County (406) 238-2500

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 Olivia Dunphy's NPI number?

The NPI number for Olivia Dunphy is 1801563911. It was assigned to this individual provider in the NPPES registry on August 26, 2021.

Where is Olivia Dunphy located?

Olivia Dunphy practices at 2800 10th Ave N, Billings, MT 59101. The listed phone number is (406) 238-2500.

What is Olivia Dunphy's specialty?

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

Is Olivia Dunphy enrolled in Medicare?

Yes. Olivia Dunphy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Olivia Dunphy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olivia Dunphy reassigns Medicare benefits to Billings Clinic (Billings, MT). 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 Olivia Dunphy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Olivia Dunphy accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Olivia Dunphy 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 Olivia Dunphy was last updated on August 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.