David Marshall, LICSW
NPI 1619208022 · Clinical Social Worker · Amherst, NH
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Marshall, LICSW is a Clinical Social Worker provider in Amherst, NH (NPI 1619208022).
Provider details
- NPI number
- 1619208022
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1699 (NH)
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
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 14a Tsienneto RdDerry, NH 03038-1505Phone: (603) 537-1300
Registry dates
- Enumerated
- 2010-01-25
- Last updated
- 2024-03-22
- Certified
- 2024-03-22
Frequently asked questions
- What is David Marshall's NPI number?
- David Marshall's National Provider Identifier (NPI) is 1619208022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Marshall's specialty?
- David Marshall is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Marshall located?
- David Marshall's practice location on file with NPPES is 9 Lyndeborough Rd, Amherst, NH 03031-3040.
- What is David Marshall's phone number?
- The practice phone number listed in the NPPES registry for David Marshall is (603) 736-7420.
- Does David Marshall accept Medicare?
- David Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Marshall's NPI active?
- Yes — David Marshall's NPI (1619208022) is active in the NPPES registry as of the last update on 2024-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.