Mountainside - Chappaqua
NPI 1407343643 · Substance Abuse Rehabilitation Facility · Chappaqua, NY
Mountainside - Chappaqua is a Substance Abuse Rehabilitation Facility organization in Chappaqua, NY (NPI 1407343643).
Provider details
- NPI number
- 1407343643
- Entity type
- Organization
- Primary specialty
- Substance Abuse Rehabilitation FacilityResidential Treatment Facilities
- Organization subpart
- No
- Authorized official
- Michelle Williamson, Director of Billing(860) 362-5232
Specialties & taxonomies
Residential Treatment Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-04-13
- Last updated
- 2022-03-25
- Certified
- 2022-03-25
Frequently asked questions
- What is Mountainside - Chappaqua's NPI number?
- Mountainside - Chappaqua's National Provider Identifier (NPI) is 1407343643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mountainside - Chappaqua?
- Mountainside - Chappaqua is classified in the NPPES registry as Substance Abuse Rehabilitation Facility (Residential Treatment Facilities).
- Where is Mountainside - Chappaqua located?
- Mountainside - Chappaqua's practice location on file with NPPES is 480 Bedford Rd, Chappaqua, NY 10514-1715.
- What is Mountainside - Chappaqua's phone number?
- The practice phone number listed in the NPPES registry for Mountainside - Chappaqua is (860) 362-5232.
- Who is the authorized official for Mountainside - Chappaqua?
- The authorized official listed on Mountainside - Chappaqua's NPPES record is Michelle Williamson, Director of Billing. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mountainside - Chappaqua's NPI active?
- Yes — Mountainside - Chappaqua's NPI (1407343643) is active in the NPPES registry as of the last update on 2022-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.