Dr. Clifford Issacoff Clinical Psychologist, P.C.
NPI 1871907451 · Clinical Psychologist · East Islip, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dr. Clifford Issacoff Clinical Psychologist, P.C. is a Clinical Psychologist organization in East Islip, NY (NPI 1871907451).
Provider details
- NPI number
- 1871907451
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Clifford Issacoff, Owner(631) 277-8367
- License
- 009286 (NY)
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
12 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
- 2014-06-11
- Last updated
- 2014-06-11
Frequently asked questions
- What is Dr. Clifford Issacoff Clinical Psychologist, P.C.'s NPI number?
- Dr. Clifford Issacoff Clinical Psychologist, P.C.'s National Provider Identifier (NPI) is 1871907451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr. Clifford Issacoff Clinical Psychologist, P.C.?
- Dr. Clifford Issacoff Clinical Psychologist, P.C. is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Dr. Clifford Issacoff Clinical Psychologist, P.C. located?
- Dr. Clifford Issacoff Clinical Psychologist, P.C.'s practice location on file with NPPES is 126 E Main St, East Islip, NY 11730-2600.
- What is Dr. Clifford Issacoff Clinical Psychologist, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Dr. Clifford Issacoff Clinical Psychologist, P.C. is (631) 277-8367.
- Does Dr. Clifford Issacoff Clinical Psychologist, P.C. accept Medicare?
- Dr. Clifford Issacoff Clinical Psychologist, P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Dr. Clifford Issacoff Clinical Psychologist, P.C.?
- The authorized official listed on Dr. Clifford Issacoff Clinical Psychologist, P.C.'s NPPES record is Clifford Issacoff, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr. Clifford Issacoff Clinical Psychologist, P.C.'s NPI active?
- Yes — Dr. Clifford Issacoff Clinical Psychologist, P.C.'s NPI (1871907451) is active in the NPPES registry as of the last update on 2014-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.