William J. Harker Lcsw, PC
NPI 1275848004 · Clinical Social Worker · Chester, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William J. Harker Lcsw, PC is a Clinical Social Worker organization in Chester, NY (NPI 1275848004).
Provider details
- NPI number
- 1275848004
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- William Harker, Owner(845) 469-5395
- License
- PR020169 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-08-17
- Last updated
- 2010-08-17
Frequently asked questions
- What is William J. Harker Lcsw, PC's NPI number?
- William J. Harker Lcsw, PC's National Provider Identifier (NPI) is 1275848004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William J. Harker Lcsw, PC?
- William J. Harker Lcsw, PC is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William J. Harker Lcsw, PC located?
- William J. Harker Lcsw, PC's practice location on file with NPPES is 105 Main St, Chester, NY 10918-1354.
- What is William J. Harker Lcsw, PC's phone number?
- The practice phone number listed in the NPPES registry for William J. Harker Lcsw, PC is (845) 469-5395.
- Does William J. Harker Lcsw, PC accept Medicare?
- William J. Harker Lcsw, PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William J. Harker Lcsw, PC?
- The authorized official listed on William J. Harker Lcsw, PC's NPPES record is William Harker, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William J. Harker Lcsw, PC's NPI active?
- Yes — William J. Harker Lcsw, PC's NPI (1275848004) is active in the NPPES registry as of the last update on 2010-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.