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MARAH J GREFF MS CF SLP
NPI 1972163632
Speech-Language Pathologist in Williston, ND

Active since June 15, 2019
221 UNIVERSITY AVE STE 203, WILLISTON, ND 58801(701) 580-8788(701) 609-5231 Get Directions Write a Review

NPPES record last updated: June 15, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Marah J Greff Ms Cf Slp NPPES

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

MARAH J GREFF MS CF SLP (NPI 1972163632) is an individual speech-language pathologist provider in Williston, North Dakota, licensed in North Dakota (1733) and active in the NPI registry since June 2019.

NPPES Registry Identity

NPI1972163632
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMARAH J GREFFCredential: MS CF SLP
Location Address221 UNIVERSITY AVE STE 203Williston, ND 58801-5618
Mailing Address221 University Ave Ste 203Williston, ND 58801-5618 · (701) 580-8788 · Fax (701) 609-5231
Phone(701) 580-8788
Fax(701) 609-5231
Sole ProprietorNo
Enumeration DateJune 15, 2019
✔ NPI 1972163632 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 ND · 1733
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.
221 UNIVERSITY AVE STE 203, Williston, ND 58801
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Other Providers at the Same Location NPPES 16

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

TESSA M NEETHER M.S. SLP
Speech-Language Pathologist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788
JENNA JOHNSTON M.S. SLP
Speech-Language Pathologist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 713-0794
MATTHEW MCDONALD LACP
Counselor (Professional)
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788
KELSEY KUEHN M.S. SLP
Speech-Language Pathologist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788
ABBEY M AIDE M.S. CF-SLP
Speech-Language Pathologist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788
ALISSA REEP
Occupational Therapist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788
MRS. KATIE KRINGEN MS CCC-SLP
Speech-Language Pathologist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788
CARMELLA G MCCLURE M.S. SLP
Speech-Language Pathologist
221 UNIVERSITY AVE STE 203
WILLISTON, ND 58801
Williams County (701) 580-8788

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 Marah Greff's NPI number?

The NPI number for Marah Greff is 1972163632. It was assigned to this individual provider in the NPPES registry on June 15, 2019.

Where is Marah Greff located?

Marah Greff practices at 221 University Ave Ste 203, Williston, ND 58801. The listed phone number is (701) 580-8788.

What is Marah Greff's specialty?

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

What insurance does Marah Greff accept?

Health plans from Medica list Marah Greff 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 Marah Greff was last updated on June 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.