Toby Loewenstein, MS
NPI 1891434767 · Speech-Language Pathologist · Waltham, MA
Toby Loewenstein, MS is a Speech-Language Pathologist provider in Waltham, MA (NPI 1891434767).
Provider details
- NPI number
- 1891434767
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- MS
- Sex
- Female
- Sole proprietor
- No
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
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-05-31
- Last updated
- 2022-05-31
- Certified
- 2022-05-31
Frequently asked questions
- What is Toby Loewenstein's NPI number?
- Toby Loewenstein's National Provider Identifier (NPI) is 1891434767, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Toby Loewenstein's specialty?
- Toby Loewenstein is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Toby Loewenstein located?
- Toby Loewenstein's practice location on file with NPPES is 9 Hope Ave, Waltham, MA 02453-2741.
- What is Toby Loewenstein's phone number?
- The practice phone number listed in the NPPES registry for Toby Loewenstein is (781) 216-2235.
- Is Toby Loewenstein's NPI active?
- Yes — Toby Loewenstein's NPI (1891434767) is active in the NPPES registry as of the last update on 2022-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.