NPPES file of Aug 9, 2026

Leslie D. Schlessinger, M.D.

Internal Medicine Physician · Basking Ridge, NJ

Leslie D. Schlessinger, M.D. is an internal medicine physician with a practice address in Basking Ridge, New Jersey, and NPI 1780683912, issued on Jul 19, 2005. Check the license (New Jersey 25MA02928400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780683912
Name
Leslie D. Schlessinger
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
25MA02928400 NJ
Self-reported in NPPES; status is on the state search
Practice location
45 Baileys Mill RD, Basking Ridge, NJ 07920
Phone
(908) 303-1374
Enumerated
Jul 19, 2005
Record last updated
Sep 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →

Verify Leslie D. Schlessinger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA02928400    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

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Leslie D. Schlessinger among 4,632 internal medicine physician records in New Jersey

Leslie D. Schlessinger, M.D. is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileNo · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2014 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 internal medicine physician records list a practice address in Basking Ridge

They are 7 of the 444 NPPES records with a practice address in Basking Ridge, and 4,632 internal medicine physician records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,632 in New Jersey → Every provider in Basking Ridge → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Thomas Angelo, MDBasking Ridge, NJ 079201760458251
  2. Catherine Galdun, M.D.Basking Ridge, NJ 079201275951840
  3. Joseph Lutz, M.D.Basking Ridge, NJ 079201245370352
  4. Darren Weissman, M.D.Basking Ridge, NJ 079201760624514
  5. Patricia White, M.D.Basking Ridge, NJ 079201710206271
  6. Paul WorochBasking Ridge, NJ 079201083081392
  7. Lisa Bonaventura, M.D.Bedminster, NJ 079211497850895
  8. Arthur Campbell, MDBedminster, NJ 079211023004389

Common questions

What is Leslie D. Schlessinger, M.D.'s NPI number?

Leslie D. Schlessinger, M.D.'s National Provider Identifier (NPI) is 1780683912, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Leslie D. Schlessinger, M.D. located?

The NPPES record lists a practice address at 45 Baileys Mill RD, Basking Ridge, NJ, 07920. Phone: (908) 303-1374. Providers update this record themselves, so call before visiting.

How can I verify Leslie D. Schlessinger, M.D.'s license?

NPPES lists New Jersey license number 25MA02928400, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.