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DR. LESLAW J GREDYSA MD
NPI 1184729998
Surgery - Vascular Surgery in Riverhead, NY

Active since September 14, 2006PECOS Enrolled
91.25/100
CMS Quality Rating
31 MAIN RD, SUITE 2, RIVERHEAD, NY 11901(631) 369-8539(631) 369-5613 Get Directions Write a Review

NPPES record last updated: November 14, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Leslaw J Gredysa Md NPPES

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

DR. LESLAW J GREDYSA MD (NPI 1184729998) is an individual vascular surgery provider in Riverhead, New York, licensed in New York (175169) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184729998
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameDR. LESLAW J GREDYSACredential: MD
Location Address31 MAIN RD, SUITE 2Riverhead, NY 11901
Mailing Address31 Main Rd, Suite 2Riverhead, NY 11901 · (631) 369-8539 · Fax (631) 369-5613
Phone(631) 369-8539
Fax(631) 369-5613
Sole ProprietorNo
Enumeration DateSeptember 14, 2006
Last NPPES UpdateNovember 14, 2007
✔ NPI 1184729998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in NY · 175169
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
31 MAIN RD, Riverhead, NY 11901
Open in Google Maps ↗

Other Identifiers 5

Medicaid01465594NY
Other738310NY · Aetna
Medicare UPIND93284
Other35085NY · Vytra
Medicare ID-Type Unspecified05F751NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Leslaw J Gredysa 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 Leslaw Gredysa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Shore-Lij Medical PC
57 mi
Urology
1010 NORTHERN BLVD STE 110
Great Neck, NY 11021
  • Reassigned Medicare billing, New York enrollment
  • 9,353 clinicians in this Medicare group
NPI 1053688572 (516) 321-7400

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 8

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
304 services201 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
179 services179 patients
Ultrasound study of arm or leg veins with compression and maneuvers 93970
An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.
99 services93 patients
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.
80 services71 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.
53 services51 patients
Ultrasound study of one arm or leg veins with compression and maneuvers 93971
This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.
49 services34 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11901 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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.

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.

91.25/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality74.92
Promoting Interoperability91.67
Improvement Activities40

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…
100%621 patients5/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%2,078 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
91%35 patients4/55-star benchmark: 100%
Falls: Plan of Care
Percentage of patients aged 65 years and older with a history of falls that had a plan of care for falls documented within 12 months
100%79 patients5/55-star benchmark: 100%
Falls: Risk Assessment
Percentage of patients aged 65 years and older with a history of falls that had a risk assessment for falls completed within 12 months
100%79 patients5/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%38 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
98%335 patients4/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
95%938 patients4/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
83%335 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
59%335 patients4/55-star benchmark: 79%
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.

Other Providers at the Same Location NPPES 16

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

MRS. NICOLE MARIE MARKY NP
Nurse Practitioner
31 MAIN RD
RIVERHEAD, NY 11901
Suffolk County (631) 722-4400
TAMARA GORELIK
Family Medicine
31 MAIN RD
RIVERHEAD, NY 11901
Suffolk County (631) 722-4400
KEVIN LOEBER PA-C
Physician Assistant
31 MAIN RD
RIVERHEAD, NY 11901
Suffolk County (631) 727-6308
MARINA HOMECARE AGENCY OF NY, INC.
Home Health
31 MAIN RD, SUITE 9
RIVERHEAD, NY 11901
Suffolk County (631) 369-6080
PETER G SULTAN MD PC
Orthopaedic Surgery
31 MAIN RD, SUITE 3
RIVERHEAD, NY 11901
Suffolk County (631) 727-6308
DR. KAUSHIK SATYANARAYANA MANTHANI D.O.
Family Medicine
31 MAIN RD, SUITE 1
RIVERHEAD, NY 11901
Suffolk County (631) 722-4400
MARC P WAHL PT
Physical Therapist
31 MAIN RD, SUITE 4
RIVERHEAD, NY 11901
Suffolk County (631) 208-2900
MS. MARY KATHLEEN MARTIN ANP
Nurse Practitioner (Adult Health)
31 MAIN RD
RIVERHEAD, NY 11901
Suffolk County (631) 722-4400

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 Leslaw Gredysa's NPI number?

The NPI number for Leslaw Gredysa is 1184729998. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is Leslaw Gredysa located?

Leslaw Gredysa practices at 31 Main Rd Suite 2, Riverhead, NY 11901. The listed phone number is (631) 369-8539.

What is Leslaw Gredysa's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Leslaw Gredysa enrolled in Medicare?

Yes. Leslaw Gredysa is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Leslaw Gredysa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leslaw Gredysa reassigns Medicare benefits to North Shore-Lij Medical PC (Great Neck, NY). 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 Leslaw Gredysa'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 Leslaw Gredysa was last updated on November 14, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.