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DR. ROBERT I LEVENTHAL MD
NPI 1275506214
Internal Medicine - Gastroenterology in Waterbury, CT

Active since February 09, 2006PECOS Enrolled
1312 W MAIN ST, STE 101, WATERBURY, CT 06708(203) 756-6422(203) 756-2448 Get Directions Write a Review

NPPES record last updated: April 27, 2018. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Robert I Leventhal Md NPPES

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

DR. ROBERT I LEVENTHAL MD (NPI 1275506214) is an individual gastroenterology provider in Waterbury, Connecticut, licensed in Connecticut (029930) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275506214
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ROBERT I LEVENTHALCredential: MD
Location Address1312 W MAIN ST, STE 101Waterbury, CT 06708
Mailing Address166 Waterbury Rd, Ste 104Prospect, CT 06712-1246 · (203) 756-6422 · Fax (203) 756-2448
Phone(203) 756-6422
Fax(203) 756-2448
Sole ProprietorNo
Enumeration DateFebruary 9, 2006
Last NPPES UpdateApril 27, 2018
✔ NPI 1275506214 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CT · 029930
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1312 W MAIN ST, Waterbury, CT 06708
Open in Google Maps ↗

Other Identifiers 1

Medicaid001299305CT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert I Leventhal Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Robert Leventhal reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Naugatuck Valley Endoscopy Center, LLC
Same address
Ambulatory Surgical
1312 WEST MAIN ST
Waterbury, CT 06708
  • Reassigned Medicare billing, Connecticut enrollment
  • 3 clinicians in this Medicare group
NPI 1043283906 (203) 756-6422

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06708 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

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

KATIE MITCHELL CRNA
Nurse Anesthetist, Certified Registered
1312 W MAIN ST
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 756-6422
PAOLO MAPELLI MD LLC
Internal Medicine (Gastroenterology)
1312 W MAIN ST, SUITE 101
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 756-6422
SOMNIA PAIN MANAGEMENT OF CT, P.C.
Anesthesiology (Pain Medicine)
1312 W MAIN ST
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 756-6422
NAUGATUCK VALLEY GASTROENTEROLOGY CONSULTANTS LLC
Internal Medicine (Gastroenterology)
1312 W MAIN ST, SUITE 101
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 756-6422
JOSE SOUSA CRNA
Nurse Anesthetist, Certified Registered
1312 W MAIN ST
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 756-6422
MS. ANA MARISIA SILVA APRN
Nurse Practitioner (Occupational Health)
1312 W MAIN ST
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 709-3740
DR. JOHN C. MANLEY M.D.
Anesthesiology
1312 W MAIN ST
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 756-6422
TRINITY HEALTH OF NEW ENGLAND URGENT CARE PLLC
Clinic/Center (Urgent Care)
1312 W MAIN ST
WATERBURY, CT 06708
Naugatuck Valley Planning Region (203) 709-4030

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 Leventhal's NPI number?

The NPI number for Robert Leventhal is 1275506214. It was assigned to this individual provider in the NPPES registry on February 9, 2006.

Where is Robert Leventhal located?

Robert Leventhal practices at 1312 W Main St Ste 101, Waterbury, CT 06708. The listed phone number is (203) 756-6422.

What is Robert Leventhal's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Robert Leventhal enrolled in Medicare?

Yes. Robert Leventhal is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Leventhal's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Leventhal reassigns Medicare benefits to Naugatuck Valley Endoscopy Center, LLC (Waterbury, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Leventhal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Robert Leventhal was last updated on April 27, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.