Mark Lessard, PH.D.
NPI 1679533673 · Clinical Psychologist · Fort Drum, NY
Mark Lessard, PH.D. is a Clinical Psychologist provider in Fort Drum, NY (NPI 1679533673).
Provider details
- NPI number
- 1679533673
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2104-057 (WI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
20 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
- 2006-03-24
- Last updated
- 2025-10-20
- Certified
- 2025-10-20
Frequently asked questions
- What is Mark Lessard's NPI number?
- Mark Lessard's National Provider Identifier (NPI) is 1679533673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lessard's specialty?
- Mark Lessard is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Lessard located?
- Mark Lessard's practice location on file with NPPES is Ebh02, Fort Drum, NY 13602.
- What is Mark Lessard's phone number?
- The practice phone number listed in the NPPES registry for Mark Lessard is (315) 772-6703.
- Is Mark Lessard's NPI active?
- Yes — Mark Lessard's NPI (1679533673) is active in the NPPES registry as of the last update on 2025-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.