NPI registry status
Active
2026 NPPES data Endodontics NPI 1750645057 D.M.D.
Verify on CMS → Laurence Leff, D.M.D.
Endodontics in Montclair, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,974 in Endodontics, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Laurence Leff, D.M.D. is an Endodontics in Montclair, New Jersey, listed in the federal CMS National Provider Identifier registry.
- #86
- Endodontics rank among New Jersey specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Laurence Leff, D.M.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1750645057), first enumerated 07/02/2012.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1750645057 · Endodontics
NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1750645057
- ENUM-MID 2012
- TAX-MID 6K Endodontics
- RX-NONE No Part D
- BOOK-THIN 215 in New Jersey
- PHOTO-ENUM VI Ho, DDS,MSD · 2012
What does the federal data show about Laurence Leff, D.M.D.?
Quality data not reportedPrimary specialty
Endodontics
Specialty distribution in New Jersey
How Endodontics compares to other specialties among New Jersey providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Endodontics. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1750645057 |
|---|---|
| Specialty | Endodontics |
| Credentials | D.M.D. |
| Gender | Male |
| NPI Issued | 07/02/2012 |
Endodontics Overview
How Laurence Leff, D.M.D. fits within the Endodontics landscape nationally.
5,974
Endodontics Providers in US
53
States with Endodontics
124
Avg Claims per Provider
Nationwide Endodontics peers with similar MIPS or enrollment year
Two federal-record peer sets for Leff, both outside New Jersey so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Endodontics Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Leff.
One of 215 Endodontics providers enrolled in New Jersey, 5 are shown here.
Dr. Nicholas Addiego
DMD
Ship Bottom, NJ
Dr. Caroline Ahn
DMD
Ridgefield, NJ
Dr. Thomas Allen
D.D.S.
Fort Lee, NJ
Dr. Arthur Alperstein
DDS
Vineland, NJ
Dr. Eileen Andrejczak-Hansen
DMD
Kinnelon, NJ
Compare Endodontics nationally: see state-by-state distribution →
Frequently Asked Questions
What is Laurence Leff, D.M.D.'s specialty? ▼
Laurence Leff, D.M.D. specializes in Endodontics and practices in Montclair, New Jersey. Credentials: D.M.D..
Where is Laurence Leff, D.M.D. located? ▼
Laurence Leff, D.M.D. is located at 460 BLOOMFIELD AVE, Montclair, NJ, 07042. Phone: (973) 783-3535.
What is Laurence Leff, D.M.D.'s NPI number? ▼
Laurence Leff, D.M.D.'s National Provider Identifier (NPI) is 1750645057, issued on 07/02/2012.
How many Endodontics providers are there in the US? ▼
There are 5,974 Endodontics providers across 53 states in the US. The average Endodontics provider writes 124 Medicare Part D claims per year.
Does Laurence Leff, D.M.D. accept Medicare? ▼
Laurence Leff, D.M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Laurence Leff, D.M.D.'s credentials? ▼
Laurence Leff, D.M.D.'s NPI is 1750645057 with credentials D.M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.