Associates of Merrimack Valley Inc
NPI 1174536809 · Adolescent and Children Mental Health Clinic/Center · Chelmsford, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Associates of Merrimack Valley Inc is a Adolescent and Children Mental Health Clinic/Center organization in Chelmsford, MA (NPI 1174536809).
Provider details
- NPI number
- 1174536809
- Entity type
- Organization
- Primary specialty
- Adolescent and Children Mental Health Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Joel Siegel, President Coowner Codirector(978) 256-1467
Specialties & taxonomies
Ambulatory Health Care Facilities
- Adult Mental Health Clinic/Center261QM0850X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Other names (DBA / former)
- Doing business as
- Family Associates of Merrimack Valley
Registry dates
- Enumerated
- 2006-08-14
- Last updated
- 2025-09-11
Frequently asked questions
- What is Associates of Merrimack Valley Inc's NPI number?
- Associates of Merrimack Valley Inc's National Provider Identifier (NPI) is 1174536809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Associates of Merrimack Valley Inc?
- Associates of Merrimack Valley Inc is classified in the NPPES registry as Adolescent and Children Mental Health Clinic/Center (Ambulatory Health Care Facilities).
- Where is Associates of Merrimack Valley Inc located?
- Associates of Merrimack Valley Inc's practice location on file with NPPES is 201 Chelmsford St, Chelmsford, MA 01824.
- What is Associates of Merrimack Valley Inc's phone number?
- The practice phone number listed in the NPPES registry for Associates of Merrimack Valley Inc is (978) 256-1467.
- Does Associates of Merrimack Valley Inc accept Medicare?
- Associates of Merrimack Valley Inc 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 Associates of Merrimack Valley Inc?
- The authorized official listed on Associates of Merrimack Valley Inc's NPPES record is Joel Siegel, President Coowner Codirector. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Associates of Merrimack Valley Inc's NPI active?
- Yes — Associates of Merrimack Valley Inc's NPI (1174536809) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.