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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROBERT JOHN LEON M.D.
NPI 1063428902
Internal Medicine - Cardiovascular Disease in Hoboken, NJ

Active since July 31, 2006PECOS EnrolledAccepts Medicare Assignment
129 WASHINGTON ST STE 401, HOBOKEN, NJ 07030(201) 610-1535(201) 610-1578 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Robert John Leon M.d. NPPES

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

DR. ROBERT JOHN LEON M.D. (NPI 1063428902) is an individual cardiovascular disease provider in Hoboken, New Jersey, licensed in New Jersey (65906) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Aurelia Osborn Fox Memorial Hospital, and maintains a secondary practice location in Cooperstown.

NPPES Registry Identity

NPI1063428902
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. ROBERT JOHN LEONCredential: M.D.
Location Address129 WASHINGTON ST STE 401Hoboken, NJ 07030-4650
Mailing Address1 Atwell RdCooperstown, NY 13326-1301
Phone(201) 610-1535
Fax(201) 610-1578
Sole ProprietorYes
Medical School CMSOtherGraduated 1990
Enumeration DateJuly 31, 2006
Last NPPES UpdateSeptember 23, 2026
NPPES CertifiedSeptember 23, 2026
✔ NPI 1063428902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Licenses✔ Licensed in NJ · 65906✔ Licensed in NY · 192918
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
129 WASHINGTON ST STE 401, Hoboken, NJ 07030
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Secondary Practice Location 1

Location 11 Atwell RdCooperstown, NY 13326-1301 · Phone (607) 547-3180

Other Identifiers 1

Medicaid7596600NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Robert John Leon M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5991728354
PECOS Enrollment IDI20060111000865, I20260708002694
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 Reassignments

4

Medicare enrollment records show Robert Leon reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Garden State Healthcare Associates, LLC
6.5 mi
Emergency Medicine
29 E 29TH ST
Bayonne, NJ 07002
  • Reassigned Medicare billing, New Jersey enrollment
  • 637 clinicians in this Medicare group
NPI 1700014545 (844) 242-7436
The Heart Center Of The Oranges
10 mi
Cardiovascular Disease
60 EVERGREEN PLACE, SUITE 400
East Orange, NJ 07018
  • Reassigned Medicare billing, New Jersey enrollment
  • 45 clinicians in this Medicare group
NPI 1477532588 (973) 395-1550
St. Luke's Physician Group, Inc.
61 mi
Internal Medicine
125 SMITHFIELD LN
East Stroudsburg, PA 18301
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Medicare enrollment name: St Lukes Physician Group Inc
  • 2,851 clinicians in this Medicare group
NPI 1952662272 (272) 212-3872
Mary Imogene Bassett Hospital
143 mi
Multi-Specialty
1 ATWELL RD
Cooperstown, NY 13326
  • Reassigned Medicare billing, New York enrollment
  • 1,052 clinicians in this Medicare group
NPI 1083664221 (607) 547-6858

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

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
118 services68 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
46 services45 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
23 services23 patients
Ultrasound of both sides of head and neck blood flow 93880
An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.
23 services23 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Aurelia Osborn Fox Memorial Hospital

Acute Care Hospitals · Oneonta, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330085
LocationOne Norton AvenueOneonta, NY 13820 · Otsego County
Emergency services

Bassett Healthcare

Acute Care Hospitals · Cooperstown, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330136
LocationOne Atwell RoadCooperstown, NY 13326 · Otsego County
Emergency services Birthing friendly

O'connor Hospital

Critical Access Hospitals · Delhi, NY
OwnershipVoluntary non-profit - Private
CMS Certification Number331305
Location460 Andes RoadDelhi, NY 13753 · Delaware County
Emergency services

Little Falls Hospital

Critical Access Hospitals · Little Falls, NY
OwnershipVoluntary non-profit - Private
CMS Certification Number331311
Location140 Burwell StreetLittle Falls, NY 13365 · Herkimer County
Emergency services

Cobleskill Regional Hospital

Critical Access Hospitals · Cobleskill, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number331320
Location178 Grandview DriveCobleskill, NY 12043 · Schoharie County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07030 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$79.09 typical visit price
range $20.97 – $155.92
Typical copayment $19.77 (range $5.24 – $38.98)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Leon's NPI number?

The NPI number for Robert Leon is 1063428902. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Robert Leon located?

Robert Leon practices at 129 Washington St Ste 401, Hoboken, NJ 07030. The listed phone number is (201) 610-1535.

What is Robert Leon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Robert Leon enrolled in Medicare?

Yes. Robert Leon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Robert Leon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Leon reassigns Medicare benefits to 4 organizations: Garden State Healthcare Associates, LLC (Bayonne, NJ), The Heart Center Of The Oranges (East Orange, NJ), St. Luke's Physician Group, Inc. (East Stroudsburg, PA) and Mary Imogene Bassett Hospital (Cooperstown, NY). Each 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 Leon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Leon accept?

Health plans from Oscar Health list Robert Leon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Robert Leon affiliated with any hospitals?

According to CMS data, Robert Leon is affiliated with Aurelia Osborn Fox Memorial Hospital, Bassett Healthcare, O'connor Hospital, Little Falls Hospital and Cobleskill Regional Hospital.

When was this NPI record last updated?

The NPPES record for Robert Leon was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.