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STEPHEN THOMAS ONESTI M.D.
NPI 1114912458
Neurological Surgery in Rockville Centre, NY

Active since September 13, 2005PECOS EnrolledAccepts Medicare Assignment
100 MERRICK RD, SUITE 200W, ROCKVILLE CENTRE, NY 11570(516) 632-7050(516) 632-7074 Get Directions Write a Review

NPPES record last updated: October 2, 2012. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Stephen Thomas Onesti M.d. NPPES

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

STEPHEN THOMAS ONESTI M.D. (NPI 1114912458) is an individual neurological surgery provider in Rockville Centre, New York, licensed in New York (172055-1) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai South Nassau, and is a graduate of Harvard Medical School (1986).

NPPES Registry Identity

NPI1114912458
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameSTEPHEN THOMAS ONESTICredential: M.D.
Location Address100 MERRICK RD, SUITE 200WRockville Centre, NY 11570-4800
Mailing Address100 Merrick Rd, Suite 200wRockville Centre, NY 11570-4800 · (516) 632-7050 · Fax (516) 632-7074
Phone(516) 632-7050
Fax(516) 632-7074
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 1986
Enumeration DateSeptember 13, 2005
Last NPPES UpdateOctober 2, 2012
✔ NPI 1114912458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in NY · 172055-1
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
100 MERRICK RD, Rockville Centre, NY 11570
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Other Identifiers 4

Medicare UPINF53831NY
Medicaid01500807NY
Medicaid3118681NY
Medicare ID-Type Unspecified11J061NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen Thomas Onesti 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 ID2668598475
PECOS Enrollment IDI20100929001453
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 2

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 straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
96 services58 patients
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
40 services40 patients

Hospital Affiliations CMS Care Compare 2

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

Mount Sinai South Nassau

Acute Care Hospitals · Oceanside, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330198
LocationOne Healthy WayOceanside, NY 11572 · Nassau County
Emergency services Birthing friendly

Mercy Medical Center

Acute Care Hospitals · Rockville Centre, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330259
Location1000 North Village AvenueRockville Centre, NY 11570 · Nassau County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11570 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
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.

Reported Quality Measures

Closing the Referral Loop: Receipt of Specialist Report
Percentage of patients with referrals, regardless of age, for which the referring provider receives a report from the provider to whom the patient was referred
6%222 patients1/55-star benchmark: 95%
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%638 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.
98%42 patients4/55-star benchmark: 100%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
68%368 patients3/55-star benchmark: 96%
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%369 patients5/55-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…
1%367 patients1/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 11% · 147 patients
82%147 patients
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…
98%369 patients4/55-star benchmark: 100%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 2% · 164 patients
8%164 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.

Other Providers at the Same Location NPPES 15

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

DR. MICHAEL H BRISMAN M.D.
Specialist
100 MERRICK RD, SUITE 128 W
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 255-9031
NEUROLOGICAL SURGERY PRACTICE OF LONG ISLAND PLLC
Neurological Surgery
100 MERRICK RD, SUITE 128 W
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 255-9031
DR. ANDREW BARRY RUTMAN D.D.S.
Dentist (General Practice)
100 MERRICK RD, SUITE 106 EAST
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 766-5558
MS. CYNTHIA LUANN SPRAGG MSPH, PA-C
Physician Assistant
100 MERRICK RD, SUITE 128W
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 255-9031
KEVIN WONG CNIM
Specialist/Technologist, Other
100 MERRICK RD
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 321-2589
VLADIMIR DADASHEV MD
Neurological Surgery
100 MERRICK RD, SUITE 128 WEST
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 255-9031
NSPC PLASTICS
Plastic Surgery
100 MERRICK RD, SUITE 128 W
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 442-3461
FISS CHIROPRACTIC PC
Chiropractor
100 MERRICK RD
ROCKVILLE CENTRE, NY 11570
Nassau County (516) 586-6063

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 Stephen Onesti's NPI number?

The NPI number for Stephen Onesti is 1114912458. It was assigned to this individual provider in the NPPES registry on September 13, 2005.

Where is Stephen Onesti located?

Stephen Onesti practices at 100 Merrick Rd Suite 200W, Rockville Centre, NY 11570. The listed phone number is (516) 632-7050.

What is Stephen Onesti's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Stephen Onesti enrolled in Medicare?

Yes. Stephen Onesti 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.

Is Stephen Onesti affiliated with any hospitals?

According to CMS data, Stephen Onesti is affiliated with Mount Sinai South Nassau and Mercy Medical Center.

When was this NPI record last updated?

The NPPES record for Stephen Onesti was last updated on October 2, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.