Nicholas Apostoleris, PHD
NPI 1508887142 · Clinical Psychologist · Fitchburg, MA
Nicholas Apostoleris, PHD is a Clinical Psychologist provider in Fitchburg, MA (NPI 1508887142).
Provider details
- NPI number
- 1508887142
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 7958 (MA)
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
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
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2014-08-27
Frequently asked questions
- What is Nicholas Apostoleris's NPI number?
- Nicholas Apostoleris's National Provider Identifier (NPI) is 1508887142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Apostoleris's specialty?
- Nicholas Apostoleris is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Nicholas Apostoleris located?
- Nicholas Apostoleris's practice location on file with NPPES is 326 Nichols Rd, Fitchburg, MA 01420-1914.
- What is Nicholas Apostoleris's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Apostoleris is (978) 343-5270.
- Is Nicholas Apostoleris's NPI active?
- Yes — Nicholas Apostoleris's NPI (1508887142) is active in the NPPES registry as of the last update on 2014-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.