Leonard Korn, M.D.
Forensic Psychiatry Physician · Portsmouth, NH
Leonard Korn, M.D. is a forensic psychiatry physician with a practice address in Portsmouth, New Hampshire, and NPI 1851464333, issued on Nov 15, 2006. Check the license (New Hampshire 5152, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Leonard Korn
- Credential
- M.D.
- Primary taxonomy
- Forensic Psychiatry Physician 2084F0202X
- License number
- 5152 NH
Self-reported in NPPES; status is on the state search - Practice location
- 330 Borthwick Ave, Portsmouth, NH 03801
- Phone
- (603) 431-5350
- Enumerated
- Nov 15, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (603) 431-3691
- Entity
- Type 1 · individual
Also registered at 330 Borthwick Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kulli Barrett, M.D.Nephrology Physician1437140209
- Lisa Benton, D.O.Pediatrics Physician1437367471
- Andrew Breen, M.D.Pediatrics Physician1861583106
- Brigette Brock, PA-CMedical Physician Assistant1871621185
- Daniel Brown, M.D.Pediatrics Physician1487742912
- Jaclyn Carter, PAPhysician Assistant1760041784
Verify Leonard Korn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 5152Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average forensic psychiatry physician in 2024
630 Medicare Part D claims for 57 beneficiaries, against an average of 803 among the 199 providers of this specialty who prescribed in Part D.
Most prescribed
- Lorazepam62 claims
- Clonazepam56 claims
- Escitalopram Oxalate45 claims
- Alprazolam43 claims
- Venlafaxine Hcl Er37 claims
- Trazodone Hcl36 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Forensic Psychiatry Physician providers in New Hampshire
There are 2 forensic psychiatry physician records in New Hampshire.
Other forensic psychiatry physician records in New Hampshire
- Aisha Sabir, M.D.Concord, NH1609970631
Common questions
What is Leonard Korn, M.D.'s NPI number?
Leonard Korn, M.D.'s National Provider Identifier (NPI) is 1851464333, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Korn, M.D. located?
The NPPES record lists a practice address at 330 Borthwick Ave, Portsmouth, NH, 03801. Phone: (603) 431-5350. Providers update this record themselves, so call before visiting.
How can I verify Leonard Korn, M.D.'s license?
NPPES lists New Hampshire license number 5152, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leonard Korn, M.D. prescribe under Medicare Part D?
In 2024, Leonard Korn, M.D. had 630 Medicare Part D claims for 57 beneficiaries; the average among forensic psychiatry physician prescribers was 803. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.