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Ruth Derosa, PH.D.
NPI 1538290531 · Clinical Psychologist · Smithtown, NY
Ruth Derosa, PH.D. is a Clinical Psychologist provider in Smithtown, NY (NPI 1538290531).
Provider details
- NPI number
- 1538290531
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 012978 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 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
39 Landing Ave
Smithtown, NY 11787-2710
Phone: (516) 993-7230
Street-level locationGet directions
Mailing address
311 Devon Ln
Smithtown, NY 11787-4506
Registry dates
- Enumerated
- 2007-03-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ruth Derosa's NPI number?
- Ruth Derosa's National Provider Identifier (NPI) is 1538290531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Derosa's specialty?
- Ruth Derosa is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Ruth Derosa located?
- Ruth Derosa's practice location on file with NPPES is 39 Landing Ave, Smithtown, NY 11787-2710.
- What is Ruth Derosa's phone number?
- The practice phone number listed in the NPPES registry for Ruth Derosa is (516) 993-7230.
- Is Ruth Derosa's NPI active?
- Yes — Ruth Derosa's NPI (1538290531) 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.