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Mark Schiffman, LCSW-R
NPI 1366614026 · Clinical Social Worker · Ossining, NY
Mark Schiffman, LCSW-R is a Clinical Social Worker provider in Ossining, NY (NPI 1366614026).
Provider details
- NPI number
- 1366614026
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-R
- Sex
- Male
- Sole proprietor
- Yes
- License
- 071616 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
100 Executive Blvd
Suite 203
Ossining, NY 10562-2557
Phone: (914) 393-3454
Street-level locationGet directions
Mailing address
43 Lakefront Rd
Putnam Valley, NY 10579-2226
Registry dates
- Enumerated
- 2008-04-01
- Last updated
- 2008-04-01
Frequently asked questions
- What is Mark Schiffman's NPI number?
- Mark Schiffman's National Provider Identifier (NPI) is 1366614026, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Schiffman's specialty?
- Mark Schiffman is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Schiffman located?
- Mark Schiffman's practice location on file with NPPES is 100 Executive Blvd, Ossining, NY 10562-2557.
- What is Mark Schiffman's phone number?
- The practice phone number listed in the NPPES registry for Mark Schiffman is (914) 393-3454.
- Is Mark Schiffman's NPI active?
- Yes — Mark Schiffman's NPI (1366614026) is active in the NPPES registry as of the last update on 2008-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.