LYNN O'NEILL
NPI 1356575609
Anesthesiology in Huntington, NY

Q: What is Lynn O'neill's NPI number?

The NPI number for Lynn O'neill is 1356575609. It was assigned to this individual provider in the NPPES registry on May 14, 2009.

Q: What is Lynn O'neill's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Lynn O'neill was last updated on July 14, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since May 14, 2009PECOS EnrolledAccepts Medicare Assignment

270 PARK AVE, DEPT OF ANESTHESIOLOGY, HUNTINGTON, NY 11743(631) 351-2785 Get Directions Write a Review

NPPES record last updated: July 14, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Lynn O'neill NPPES

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

LYNN O'NEILL (NPI 1356575609) is an individual anesthesiology provider in Huntington, New York, licensed in New York (246919) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with John T Mather Memorial Hospital Of Port Jefferson, and is a graduate of New York University School Of Medicine (2006).

NPPES Registry Identity

NPI1356575609

Entity TypeIndividualFemale

Primary Taxonomy207L00000X

Provider Legal NameLYNN O'NEILL

Location Address270 PARK AVE, DEPT OF ANESTHESIOLOGYHuntington, NY 11743-2787

Mailing Address68 S Service Rd, Suite 350Melville, NY 11747-2354 · (516) 945-3000

Phone(631) 351-2785

Sole ProprietorYes

Medical School CMSNew York University School Of MedicineGraduated 2006

Enumeration DateMay 14, 2009

Last NPPES UpdateJuly 14, 2010

✔ NPI 1356575609 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in NY · 246919

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

270 PARK AVE, Huntington, NY 11743

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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

Lynn O'neill 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 ID7214068378

PECOS Enrollment IDI20100706000616

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

Medicare enrollment records show Lynn O'neill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Endoscopy Center Of Long Island LLC

14 mi

Endoscopy

711 STEWART AVE, SUITE 114
Garden City, NY 11530

Reassigned Medicare billing, New York enrollment
65 clinicians in this Medicare group

NPI 1770718009 (516) 227-3254

North Shore - Lij Anesthesiology, PC

27 mi

Anesthesiology

480 BEDFORD RD BLDG B
Chappaqua, NY 10514

Reassigned Medicare billing, New York enrollment
1,406 clinicians in this Medicare group

NPI 1417401266 (914) 666-8866

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 6

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.

Anesthesia for lens surgery 00142

Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.

100 services99 patients

Anesthesia for exam of colon using an endoscope 00812

Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.

39 services39 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

17 services17 patients

Anesthesia for other procedure on eye 00140

Anesthesia for an eye procedure involves administering medication to numb your eye and surrounding area, ensuring you feel no pain during the operation. It can be local (only the eye area) or general (whole body). It's safe and helps make the procedure comfortable.

15 services15 patients

Anesthesia for retinal surgery 00145

Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).

13 services13 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

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.

MS. CARA ANGELA CHARTIER PA

Physician Assistant (Surgical)