Leonard Korn, M.D.
NPI 1851464333 · Forensic Psychiatry Physician · Portsmouth, NH
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Korn, M.D. is a Forensic Psychiatry Physician provider in Portsmouth, NH (NPI 1851464333).
Provider details
- NPI number
- 1851464333
- Entity type
- Individual
- Primary specialty
- Forensic Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5152 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lorazepam | 62 | 16 |
| Clonazepam | 56 | — |
| Escitalopram Oxalate | 45 | 13 |
| Alprazolam | 43 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 37 | — |
| Trazodone Hcl | 36 | — |
| Fluoxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2025-09-11
Frequently asked questions
- What is Leonard Korn's NPI number?
- Leonard Korn's National Provider Identifier (NPI) is 1851464333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Korn's specialty?
- Leonard Korn is listed in the NPPES registry with a primary specialty of Forensic Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Korn located?
- Leonard Korn's practice location on file with NPPES is 330 Borthwick Ave, Portsmouth, NH 03801-4174.
- What is Leonard Korn's phone number?
- The practice phone number listed in the NPPES registry for Leonard Korn is (603) 431-5350.
- Does Leonard Korn accept Medicare?
- Leonard Korn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Korn's NPI active?
- Yes — Leonard Korn's NPI (1851464333) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.