Marah Greff, MS CF SLP
NPI 1972163632 · Speech-Language Pathologist · Williston, ND
Marah Greff, MS CF SLP is a Speech-Language Pathologist provider in Williston, ND (NPI 1972163632).
Provider details
- NPI number
- 1972163632
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- MS CF SLP
- Sex
- Female
- Sole proprietor
- No
- License
- 1733 (ND)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-15
- Last updated
- 2019-06-15
Frequently asked questions
- What is Marah Greff's NPI number?
- Marah Greff's National Provider Identifier (NPI) is 1972163632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marah Greff's specialty?
- Marah Greff is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Marah Greff located?
- Marah Greff's practice location on file with NPPES is 221 University Ave Ste 203, Williston, ND 58801-5618.
- What is Marah Greff's phone number?
- The practice phone number listed in the NPPES registry for Marah Greff is (701) 580-8788.
- Is Marah Greff's NPI active?
- Yes — Marah Greff's NPI (1972163632) is active in the NPPES registry as of the last update on 2019-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.