IndividualActive
Chelsea Koster
NPI 1912699984 · Speech-Language Pathologist · Boston, MA
Chelsea Koster is a Speech-Language Pathologist provider in Boston, MA (NPI 1912699984).
Provider details
- NPI number
- 1912699984
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 78484 (MA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
Established profile(58/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
313 Congress St
Boston, MA 02210-1218
Phone: (617) 790-4800
Street-level locationGet directions
Mailing address
18 Haste St
Fairhaven, MA 02719-4510
Registry dates
- Enumerated
- 2023-05-25
- Last updated
- 2023-05-25
- Certified
- 2023-05-25
Frequently asked questions
- What is Chelsea Koster's NPI number?
- Chelsea Koster's National Provider Identifier (NPI) is 1912699984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chelsea Koster's specialty?
- Chelsea Koster is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Chelsea Koster located?
- Chelsea Koster's practice location on file with NPPES is 313 Congress St, Boston, MA 02210-1218.
- What is Chelsea Koster's phone number?
- The practice phone number listed in the NPPES registry for Chelsea Koster is (617) 790-4800.
- Is Chelsea Koster's NPI active?
- Yes — Chelsea Koster's NPI (1912699984) is active in the NPPES registry as of the last update on 2023-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.