Allison Olefson, M.S
NPI 1427282458 · Speech-Language Pathologist · Closter, NJ
Allison Olefson, M.S is a Speech-Language Pathologist provider in Closter, NJ (NPI 1427282458).
Provider details
- NPI number
- 1427282458
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.S
- Sex
- Female
- Sole proprietor
- Yes
- License
- YS4111 (NJ)
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
17 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
- 2009-05-05
- Last updated
- 2009-05-05
Frequently asked questions
- What is Allison Olefson's NPI number?
- Allison Olefson's National Provider Identifier (NPI) is 1427282458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Olefson's specialty?
- Allison Olefson is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Allison Olefson located?
- Allison Olefson's practice location on file with NPPES is 25 Kinkaid Ave, Closter, NJ 07624-2908.
- What is Allison Olefson's phone number?
- The practice phone number listed in the NPPES registry for Allison Olefson is (201) 767-5799.
- Is Allison Olefson's NPI active?
- Yes — Allison Olefson's NPI (1427282458) is active in the NPPES registry as of the last update on 2009-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.