David Merrifield, LCSW
NPI 1437140829 · Clinical Social Worker · Port Washington, WI
David Merrifield, LCSW is a Clinical Social Worker provider in Port Washington, WI (NPI 1437140829).
Provider details
- NPI number
- 1437140829
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- License
- 106123 (WI)
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
20 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
- 2005-11-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Merrifield's NPI number?
- David Merrifield's National Provider Identifier (NPI) is 1437140829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Merrifield's specialty?
- David Merrifield is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Merrifield located?
- David Merrifield's practice location on file with NPPES is 121 W Main St, Port Washington, WI 53074-1813.
- What is David Merrifield's phone number?
- The practice phone number listed in the NPPES registry for David Merrifield is (262) 284-8130.
- Is David Merrifield's NPI active?
- Yes — David Merrifield's NPI (1437140829) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.