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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.

KENNETH CHRISTOPHER KNEESSY M.D.
NPI 1851407274
Plastic Surgery in East Setauket, NY

Active since August 21, 2006PECOS Enrolled
24 RESEARCH WAY, SUITE 100, EAST SETAUKET, NY 11733(631) 751-4400(631) 689-2375 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 23, 2026, Feb 6, 2020 (2 updates tracked since 2020).

About Kenneth Christopher Kneessy M.d. NPPES

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

KENNETH CHRISTOPHER KNEESSY M.D. (NPI 1851407274) is an individual plastic surgery provider in East Setauket, New York, licensed in New York (1957731) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with John T Mather Memorial Hospital Of Port Jefferson, and is a graduate of Other (1992).

NPPES Registry Identity

NPI1851407274
Entity TypeIndividualMale
Primary Taxonomy208200000X
Provider Legal NameKENNETH CHRISTOPHER KNEESSYCredential: M.D.
Location Address24 RESEARCH WAY, SUITE 100East Setauket, NY 11733
Mailing Address24 Research Way, Suite 100East Setauket, NY 11733 · (631) 751-4400 · Fax (631) 689-2375
Phone(631) 751-4400
Fax(631) 689-2375
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateAugust 21, 2006
Last NPPES UpdateSeptember 23, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 6, 2020
✔ NPI 1851407274 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPlastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208200000X
License✔ Licensed in NY · 1957731
Definition
A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.
Also ListedPlastic Surgery · Surgery of the HandTaxonomy 2082S0105X · License 1957731 (NY)
24 RESEARCH WAY, East Setauket, NY 11733
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Other Identifiers 1

Medicaid02117155NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kenneth Christopher Kneessy M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5395814545
PECOS Enrollment IDI20080514000679
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.

Areas of Expertise CMS Part B claims 5

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.
109 services55 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.
49 services38 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
42 services42 patients
Implantation of biologic implant to soft tissue 15777
The procedure involves placing a biological implant into soft tissue to support healing or replace damaged tissue. These implants are made from natural materials and are designed to work with your body's own healing processes. This can aid recovery and improve function.
16 services16 patients
Revision of capsule around breast implant 19370
A revision of the capsule around a breast implant is a procedure to address issues with the tissue layer that forms around the implant. This can become thickened or hardened over time, causing discomfort or altering the appearance. The procedure aims to improve comfort and aesthetics.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

John T Mather Memorial Hospital Of Port Jefferson

Acute Care Hospitals · Port Jefferson, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330185
Location75 North Country RoadPort Jefferson, NY 11777 · Suffolk County
Emergency services

St Charles Hospital

Acute Care Hospitals · Port Jefferson, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330246
Location200 Belle Terre RoadPort Jefferson, NY 11777 · Suffolk County
Birthing friendly

St Catherine Of Siena Hospital Medical Center

Acute Care Hospitals · Smithtown, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330401
Location50 Route 25ASmithtown, NY 11787 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11733 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.

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.

DAVID L PETERS D.O.
Urology
24 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-6270
DR. SAMI U KHAN M.D.
Surgery (Plastic and Reconstructive Surgery)
24 RESEARCH WAY
SETAUKET, NY 11733
Suffolk County (631) 444-9394
MRS. CHRISTINA ALYSSE ROMANO PA-C
Physician Assistant (Surgical)
24 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-6720
COMPREHENSIVE MRI OF NEW YORK, P.C.
Radiology (Diagnostic Radiology)
24 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-5361
CARYLE ANN FRANCIS P.A.
Physician Assistant
24 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-6270
DR. YEFIM SHEYNKIN M.D.
Urology
24 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-6270
RAHULDEV S. BHALLA M.D.
Urology
24 RESEARCH WAY, SUITE 500
SETAUKET, NY 11733
Suffolk County (631) 444-6720
JASON C GANZ MD
Plastic Surgery
24 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-4666

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 Kenneth Kneessy's NPI number?

The NPI number for Kenneth Kneessy is 1851407274. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Kenneth Kneessy located?

Kenneth Kneessy practices at 24 Research Way Suite 100, East Setauket, NY 11733. The listed phone number is (631) 751-4400.

What is Kenneth Kneessy's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

Is Kenneth Kneessy enrolled in Medicare?

Yes. Kenneth Kneessy is registered in the Medicare PECOS enrollment system.

Is Kenneth Kneessy affiliated with any hospitals?

According to CMS data, Kenneth Kneessy is affiliated with John T Mather Memorial Hospital Of Port Jefferson, St Charles Hospital and St Catherine Of Siena Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Kenneth Kneessy 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 39 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.