IndividualActive
Keith Kosierowski
NPI 1871832501 · Counselor · Norwell, MA
Keith Kosierowski is a Counselor provider in Norwell, MA (NPI 1871832501).
Provider details
- NPI number
- 1871832501
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
384 Washington St
Norwell, MA 02061-2010
Phone: (781) 871-6550
Street-level locationGet directions
Mailing address
384 Washington St
Norwell, MA 02061-2010
Registry dates
- Enumerated
- 2013-01-31
- Last updated
- 2013-01-31
Frequently asked questions
- What is Keith Kosierowski's NPI number?
- Keith Kosierowski's National Provider Identifier (NPI) is 1871832501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Kosierowski's specialty?
- Keith Kosierowski is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Keith Kosierowski located?
- Keith Kosierowski's practice location on file with NPPES is 384 Washington St, Norwell, MA 02061-2010.
- What is Keith Kosierowski's phone number?
- The practice phone number listed in the NPPES registry for Keith Kosierowski is (781) 871-6550.
- Is Keith Kosierowski's NPI active?
- Yes — Keith Kosierowski's NPI (1871832501) is active in the NPPES registry as of the last update on 2013-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.