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Mark Serper, PH.D.
NPI 1134714538 · Psychologist · Oceanside, NY
Mark Serper, PH.D. is a Psychologist provider in Oceanside, NY (NPI 1134714538).
Provider details
- NPI number
- 1134714538
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 012107-01 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
1 Gerard Ct
Oceanside, NY 11572-1120
Phone: (516) 286-1373
Street-level locationGet directions
Mailing address
1 Gerard Ct
Oceanside, NY 11572-1120
Additional practice locations (1)
- 283 Commack Rd Ste 110Commack, NY 11725-3400Phone: (516) 286-1373
Registry dates
- Enumerated
- 2021-03-08
- Last updated
- 2021-03-08
- Certified
- 2020-11-12
Frequently asked questions
- What is Mark Serper's NPI number?
- Mark Serper's National Provider Identifier (NPI) is 1134714538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Serper's specialty?
- Mark Serper is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Serper located?
- Mark Serper's practice location on file with NPPES is 1 Gerard Ct, Oceanside, NY 11572-1120.
- What is Mark Serper's phone number?
- The practice phone number listed in the NPPES registry for Mark Serper is (516) 286-1373.
- Is Mark Serper's NPI active?
- Yes — Mark Serper's NPI (1134714538) is active in the NPPES registry as of the last update on 2021-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.