Leonard J. Lyon, PA
Cardiovascular Disease Physician · Westwood, NJ
Leonard J. Lyon, PA is a cardiovascular disease physician with a practice address in Westwood, New Jersey, and NPI 1780602052, issued on Jul 17, 2006. Check the license (New Jersey MA21990, 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.
- Name
- Leonard J. Lyon
- Credential
- PA
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- MA21990 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 400 Old Hook RD, Westwood, NJ 07675
- Phone
- (201) 391-1078
- Enumerated
- Jul 17, 2006
- Record last updated
- Jun 24, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (201) 391-5388
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,102 in New Jersey → Look up another NPI →
Also registered at 400 Old Hook RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leonard J. Lyon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MA21990Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Leonard J. Lyon among 1,102 cardiovascular disease physician records in New Jersey
Leonard J. Lyon, PA is one of 1,102 cardiovascular disease physician records with a practice address in New Jersey. 87% 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 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 40% newer
- In a Medicare fileNo · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2008 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 cardiovascular disease physician records list a practice address in Westwood
They are 11 of the 382 NPPES records with a practice address in Westwood, and 1,102 cardiovascular disease physician records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,102 in New Jersey → Every provider in Westwood → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Michael AnshelevichWestwood, NJ 076751851396444
- Stuart BarrWestwood, NJ 076751992700579
- Ernest Chang, M.D. PH.D.Westwood, NJ 076751861927956
- Thomas CockeWestwood, NJ 076751972508554
- Sheldon EisenbergWestwood, NJ 076751144225723
- Arieh Greenbaum, MDWestwood, NJ 076751972921856
- Joel LandzbergWestwood, NJ 076751730184318
- Elliott LichtsteinWestwood, NJ 076751760487342
Common questions
What is Leonard J. Lyon, PA's NPI number?
Leonard J. Lyon, PA's National Provider Identifier (NPI) is 1780602052, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonard J. Lyon, PA located?
The NPPES record lists a practice address at 400 Old Hook RD, Westwood, NJ, 07675. Phone: (201) 391-1078. Providers update this record themselves, so call before visiting.
How can I verify Leonard J. Lyon, PA's license?
NPPES lists New Jersey license number MA21990, 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.
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.