On-Site Therapists, Inc.
NPI 1811196884 · Speech-Language Pathologist · Chelsea, MA
On-Site Therapists, Inc. is a Speech-Language Pathologist organization in Chelsea, MA (NPI 1811196884).
Provider details
- NPI number
- 1811196884
- Entity type
- Organization
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Organization subpart
- No
- Authorized official
- Ellen Hemrick, Owner(617) 872-1030
- License
- 5273 (MA)
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
18 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
- 2007-07-11
- Last updated
- 2007-07-11
Frequently asked questions
- What is On-Site Therapists, Inc.'s NPI number?
- On-Site Therapists, Inc.'s National Provider Identifier (NPI) is 1811196884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is On-Site Therapists, Inc.?
- On-Site Therapists, Inc. is classified in the NPPES registry as Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is On-Site Therapists, Inc. located?
- On-Site Therapists, Inc.'s practice location on file with NPPES is 121b Hawthorne St, Chelsea, MA 02150-3275.
- What is On-Site Therapists, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for On-Site Therapists, Inc. is (617) 872-1030.
- Who is the authorized official for On-Site Therapists, Inc.?
- The authorized official listed on On-Site Therapists, Inc.'s NPPES record is Ellen Hemrick, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is On-Site Therapists, Inc.'s NPI active?
- Yes — On-Site Therapists, Inc.'s NPI (1811196884) is active in the NPPES registry as of the last update on 2007-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.