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

JOHN ROSS KUCHARCZYK MD
NPI 1740710607
Internal Medicine - Medical Oncology in Mineola, NY

Active since June 14, 2017PECOS Enrolled
84.47/100
CMS Quality Rating
120 MINEOLA BLVD STE 500, MINEOLA, NY 11501(516) 663-9500 Get Directions Write a Review

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

Record update history: Jun 3, 2026, Aug 22, 2022, Aug 12, 2020 and 2 more (5 updates tracked since 2017).

About John Ross Kucharczyk Md NPPES

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

JOHN ROSS KUCHARCZYK MD (NPI 1740710607) is an individual medical oncology provider in Mineola, New York, licensed in New York (306324) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1740710607
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameJOHN ROSS KUCHARCZYKCredential: MD
Location Address120 MINEOLA BLVD STE 500Mineola, NY 11501-4074
Mailing Address120 Mineola Blvd Ste 500Mineola, NY 11501-4074 · (516) 302-7278
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 14, 2017
Last NPPES UpdateOctober 23, 20265 updates tracked since enumeration
NPPES CertifiedOctober 23, 2026
✔ NPI 1740710607 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in NY · 306324
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedHospitalistTaxonomy 208M00000X · License 306324 (NY)
120 MINEOLA BLVD STE 500, Mineola, NY 11501

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

John Ross Kucharczyk Md 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 ID2860819364
PECOS Enrollment IDI20200828002212
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 John Kucharczyk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cardiovascular Disease
3301 QUANTUM BLVD
Boynton Beach, FL 33426
  • Reassigned Medicare billing, New York enrollment
  • 2,450 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 11501 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
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.33
Promoting Interoperability100
Improvement Activities40
Cost54.91

Other Providers at the Same Location NPPES 12

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

Physician Assistant
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Internal Medicine (Hematology & Oncology)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Nurse Practitioner (Family)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Nurse Practitioner (Adult Health)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Internal Medicine (Hematology & Oncology)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Nurse Practitioner (Adult Health)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Nurse Practitioner (Adult Health)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501
Internal Medicine (Hematology & Oncology)
120 MINEOLA BLVD STE 500
MINEOLA, NY 11501

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 John Kucharczyk's NPI number?

The NPI number for John Kucharczyk is 1740710607. It was assigned to this individual provider in the NPPES registry on June 14, 2017.

Where is John Kucharczyk located?

John Kucharczyk practices at 120 Mineola Blvd Ste 500, Mineola, NY 11501. The listed phone number is (516) 663-9500.

What is John Kucharczyk's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is John Kucharczyk enrolled in Medicare?

Yes. John Kucharczyk 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 organization bills Medicare for John Kucharczyk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Kucharczyk reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 John Kucharczyk'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 John Kucharczyk was last updated on October 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.