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Leland Petersen, CP
NPI 1790902229 · Clinical Psychologist · Glen Head, NY
Leland Petersen, CP is a Clinical Psychologist provider in Glen Head, NY (NPI 1790902229).
Provider details
- NPI number
- 1790902229
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- CP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 05430 (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
11 Beechwood Dr
Glen Head, NY 11545-1101
Phone: (516) 671-7509
Street-level locationGet directions
Mailing address
11 Beechwood Dr
Glen Head, NY 11545-1101
Registry dates
- Enumerated
- 2007-04-19
- Last updated
- 2007-10-31
Frequently asked questions
- What is Leland Petersen's NPI number?
- Leland Petersen's National Provider Identifier (NPI) is 1790902229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leland Petersen's specialty?
- Leland Petersen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Leland Petersen located?
- Leland Petersen's practice location on file with NPPES is 11 Beechwood Dr, Glen Head, NY 11545-1101.
- What is Leland Petersen's phone number?
- The practice phone number listed in the NPPES registry for Leland Petersen is (516) 671-7509.
- Is Leland Petersen's NPI active?
- Yes — Leland Petersen's NPI (1790902229) is active in the NPPES registry as of the last update on 2007-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.