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

DR. LEON VICTOR KATZ M.D.
NPI 1205890977
Preventive Medicine - Obesity Medicine in New York, NY

Active since April 12, 2006PECOS Enrolled
600 3RD AVE FL 2, NEW YORK, NY 10016(617) 505-1520(617) 928-8401 Get Directions Write a Review

NPPES record last updated: October 28, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 28, 2026, Dec 27, 2024, Feb 5, 2021 and 1 more (4 updates tracked since 2016).

About Dr. Leon Victor Katz M.d. NPPES

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

DR. LEON VICTOR KATZ M.D. (NPI 1205890977) is an individual obesity medicine provider in New York, New York, licensed in New York (224351) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1996).

NPPES Registry Identity

NPI1205890977
Entity TypeIndividualMale
Primary Taxonomy2083B0002X
Provider Legal NameDR. LEON VICTOR KATZCredential: M.D.
Location Address600 3RD AVE FL 2New York, NY 10016-1919
Mailing Address109 State St Ste 5Boston, MA 02109-2906 · (617) 505-1520 · Fax (617) 928-8401
Fax(617) 928-8401
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateApril 12, 2006
Last NPPES UpdateOctober 28, 20264 updates tracked since enumeration
NPPES CertifiedOctober 28, 2026
✔ NPI 1205890977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPreventive Medicine · Obesity MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083B0002X
Licenses✔ Licensed in NY · 224351✔ Licensed in PA · MD428907
Definition
A physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.
Also ListedSurgeryTaxonomy 208600000X · License 224351 (NY)
600 3RD AVE FL 2, New York, NY 10016

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. Leon Victor Katz 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 ID9436046174
PECOS Enrollment IDI20040228000041
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

3

Medicare enrollment records show Leon Katz reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Specialist
125 MINEOLA AVE, SUITE 200
Roslyn Heights, NY 11577
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Long Island Minimally Invasive Surgery PC
  • 37 clinicians in this Medicare group
Surgery
430 SHORE RD SUITE B7D
Long Beach, NY 11561
  • Reassigned Medicare billing, New York enrollment
Transplant Surgery
8835 GERMANTOWN AVE
Philadelphia, PA 19118
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,473 clinicians in this Medicare group

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 10016 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
55%29 patients3/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier11 claims11 services$37.89 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Psychologist (Clinical)
600 3RD AVE FL 2
NEW YORK, NY 10016
Psychologist
600 3RD AVE FL 2
NEW YORK, NY 10016
Emergency Medicine
600 3RD AVE FL 2
NEW YORK, NY 10016
Nurse Practitioner (Adult Health)
600 3RD AVE FL 2
NEW YORK, NY 10016
Psychologist (Clinical)
600 3RD AVE FL 2
NEW YORK, NY 10016
Physician Assistant
600 3RD AVE FL 2
NEW YORK, NY 10016
Psychologist
600 3RD AVE FL 2
NEW YORK, NY 10016
Nurse Practitioner (Family)
600 3RD AVE FL 2
NEW YORK, NY 10016

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 Leon Katz's NPI number?

The NPI number for Leon Katz is 1205890977. It was assigned to this individual provider in the NPPES registry on April 12, 2006.

Where is Leon Katz located?

Leon Katz practices at 600 3rd Ave Fl 2, New York, NY 10016. The listed phone number is (617) 505-1520.

What is Leon Katz's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Obesity Medicine, with taxonomy code 2083B0002X.

Is Leon Katz enrolled in Medicare?

Yes. Leon Katz 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 Leon Katz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leon Katz reassigns Medicare benefits to 3 organizations: Long Island Minimally Invasive Surgery, P.C. (Roslyn Heights, NY), Dr. Leon Katz Obesity, PLLC (Long Beach, NY) and Tower Health Medical Group (Philadelphia, PA). 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 Leon Katz'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 Leon Katz was last updated on October 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.