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Marcy Kniffin, LCSW
NPI 1154416832 · Clinical Social Worker · Brewster, NY
Marcy Kniffin, LCSW is a Clinical Social Worker provider in Brewster, NY (NPI 1154416832).
Provider details
- NPI number
- 1154416832
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- R041537-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
1591 Route 22
C/O Wholistic Physical Therapy
Brewster, NY 10509-4026
Phone: (845) 309-4571
Fax: (845) 940-1051
Street-level locationGet directions
Mailing address
18 North St
Patterson, NY 12563-2710
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2008-03-31
Frequently asked questions
- What is Marcy Kniffin's NPI number?
- Marcy Kniffin's National Provider Identifier (NPI) is 1154416832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcy Kniffin's specialty?
- Marcy Kniffin is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marcy Kniffin located?
- Marcy Kniffin's practice location on file with NPPES is 1591 Route 22, Brewster, NY 10509-4026.
- What is Marcy Kniffin's phone number?
- The practice phone number listed in the NPPES registry for Marcy Kniffin is (845) 309-4571.
- Is Marcy Kniffin's NPI active?
- Yes — Marcy Kniffin's NPI (1154416832) is active in the NPPES registry as of the last update on 2008-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.