Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ROBERT L LEFF D.M.D., P.C.
NPI 1407813280
Dentist - Orthodontics and Dentofacial Orthopedics in Springfield, MA

Active since April 27, 2006
1795 MAIN ST, SPRINGFIELD, MA 01103(413) 734-4443(413) 781-4338 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Robert L Leff D.m.d., P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROBERT L LEFF D.M.D., P.C. (NPI 1407813280) is an individual orthodontics and dentofacial orthopedics provider in Springfield, Massachusetts, licensed in Massachusetts (10652) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1407813280
Entity TypeIndividualMale
Primary Taxonomy1223X0400X
Provider Legal NameDR. ROBERT L LEFFCredential: D.M.D., P.C.
Location Address1795 MAIN STSpringfield, MA 01103-1077
Mailing Address1795 Main StSpringfield, MA 01103-1077 · (413) 734-4443 · Fax (413) 781-4338
Fax(413) 781-4338
Sole ProprietorNo
Enumeration DateApril 27, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1407813280 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · Orthodontics and Dentofacial OrthopedicsDental Providers
Taxonomy Code1223X0400X
License Licensed in MA · 10652
Definition

That area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex. Major responsibilities of orthodontic practice include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.

1795 MAIN ST, Springfield, MA 01103

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dentist (Periodontics)
1795 MAIN ST, SUITE 202
SPRINGFIELD, MA 01103
Dentist (Periodontics)
1795 MAIN ST, SUITE 202
SPRINGFIELD, MA 01103
Dentist
1795 MAIN ST, SUITE 101
SPRINGFIELD, MA 01103
Dentist
1795 MAIN ST
SPRINGFIELD, MA 01103
Dentist (General Practice)
1795 MAIN ST, STE. 202
SPRINGFIELD, MA 01103
Dentist (General Practice)
1795 MAIN ST
SPRINGFIELD, MA 01103
Dentist
1795 MAIN ST, SUITE 101
SPRINGFIELD, MA 01103
Dentist (Orthodontics and Dentofacial Orthopedics)
1795 MAIN ST, #109
SPRINGFIELD, MA 01103

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Leff's NPI number?

The NPI number for Robert Leff is 1407813280. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Where is Robert Leff located?

Robert Leff practices at 1795 Main St, Springfield, MA 01103. The listed phone number is (413) 734-4443.

What is Robert Leff's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Orthodontics and Dentofacial Orthopedics, with taxonomy code 1223X0400X.

When was this NPI record last updated?

The NPPES record for Robert Leff was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.