Leon Waller, M.D.
Internal Medicine Physician · Verona, NJ
Leon Waller, M.D. is an internal medicine physician with a practice address in Verona, New Jersey, and NPI 1497847131, issued on Sep 29, 2006. Check the license (New Jersey MB340004, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Leon Waller
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MB340004 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 50 Pompton Ave, Verona, NJ 07044
- Phone
- (201) 896-0900
- Enumerated
- Sep 29, 2006
- Record last updated
- Apr 27, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (201) 896-2627
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 50 Pompton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- George Ambrosio, M.D.Internal Medicine Physician1669564431
- Bianca Ayubi, MHS, PA-CPhysician Assistant1871033217
- Katherine Decourcelle, PA-CPhysician Assistant1730470162
- Danielle Desantis, PACPhysician Assistant1619227832
- Carol Lipsitch, M.D.Internal Medicine Physician1891887592
- Danielle Madurski, APRNFamily Nurse Practitioner1386116051
Verify Leon Waller 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 MB340004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
68 Medicare Part D claims for 12 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium12 claims
- Ibuprofen11 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.
Leon Waller among 4,632 internal medicine physician records in New Jersey
Leon Waller, 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. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2017 · 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).
14 internal medicine physician records list a practice address in Verona
They are 14 of the 331 NPPES records with a practice address in Verona, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Verona → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- George Ambrosio, M.D.Verona, NJ 070441669564431
- Roger Diruggiero, MDVerona, NJ 070441457301699
- Patrick Duggan, MDVerona, NJ 070441588302293
- Mitchell Karmel, M.D.Verona, NJ 070441992700058
- Franciska Kashanian, MDVerona, NJ 070441154524866
- Carol Lipsitch, M.D.Verona, NJ 070441891887592
- Marcarious Mariyampillai, MDVerona, NJ 070441790770279
- Joan Of Arc Mariyampillai, M.D.Verona, NJ 070441417916727
Common questions
What is Leon Waller, M.D.'s NPI number?
Leon Waller, M.D.'s National Provider Identifier (NPI) is 1497847131, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leon Waller, M.D. located?
The NPPES record lists a practice address at 50 Pompton Ave, Verona, NJ, 07044. Phone: (201) 896-0900. Providers update this record themselves, so call before visiting.
How can I verify Leon Waller, M.D.'s license?
NPPES lists New Jersey license number MB340004, 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.
How much does Leon Waller, M.D. prescribe under Medicare Part D?
In 2024, Leon Waller, M.D. had 68 Medicare Part D claims for 12 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.