DR. WILLIAM J SONSTEIN M.D.
NPI 1669495305
Specialist in Rockville Centre, NY

Active since July 25, 2006PECOS EnrolledAccepts Medicare Assignment
100 MERRICK RD, SUITE 128 W, ROCKVILLE CENTRE, NY 11570(516) 255-9031(516) 255-6230 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William J Sonstein M.d. NPPES

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

DR. WILLIAM J SONSTEIN M.D. (NPI 1669495305) is an individual specialist in Rockville Centre, New York, licensed in New York (195202-2) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Temple University School Of Medicine (1991).

NPPES Registry Identity

NPI1669495305
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. WILLIAM J SONSTEINCredential: M.D.
Location Address100 MERRICK RD, SUITE 128 WRockville Centre, NY 11570-4800
Mailing Address100 Merrick Rd, Suite 128 WRockville Centre, NY 11570-4800 · (516) 255-9031 · Fax (516) 255-6230
Fax(516) 255-6230
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 1991
Enumeration DateJuly 25, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1669495305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License Licensed in NY · 195202-2
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
100 MERRICK RD, Rockville Centre, NY 11570

Other Identifiers 3

Medicare UPING69563NY
Medicare ID-Type Unspecified89E881NY
Medicaid01827870NY

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

Dr. William J Sonstein 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 ID5991730574
PECOS Enrollment IDI20070626000763
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 7

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.

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.
70 services70 patients
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.
70 services54 patients
Release of unspecified nerve 64722
A release of an unspecified nerve is a surgical procedure that helps alleviate pressure on a nerve that may be causing pain or discomfort. It involves the careful removal or adjustment of tissues pressing on the nerve, to allow for better nerve function.
62 services17 patients
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment 63048
This procedure involves the partial removal of a bone in your spine to alleviate pressure on your spinal cord or nerves. It may be performed on multiple spine segments depending on your condition. The aim is to improve mobility and reduce pain or discomfort.
29 services15 patients
Fusion of additional segment of spine 22614
Fusion of an additional segment of the spine is a surgical procedure to join two or more vertebrae together. This is done to stabilize the spine and reduce pain or correct a deformity. The procedure involves using bone grafts, rods, or screws to secure the spine.
21 services16 patients
Fusion of spine in lower back 22612
Fusion of the spine in the lower back, also known as lumbar spinal fusion, is a surgery aimed to join, or fuse, two or more vertebrae in your lower back. This procedure can help alleviate pain and improve stability by reducing movement between the vertebrae.
19 services19 patients

Hospital Affiliations CMS Care Compare 2

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

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York County
Emergency services Birthing friendly

Chsli St Joseph Hospital

Acute Care Hospitals · Bethpage, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330332
Location4295 Hempstead TurnpikeBethpage, NY 11714 · Nassau County
Emergency services

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.

Neurological Surgery
100 MERRICK RD, SUITE 200W
ROCKVILLE CENTRE, NY 11570
Specialist
100 MERRICK RD, SUITE 128 W
ROCKVILLE CENTRE, NY 11570
Neurological Surgery
100 MERRICK RD, SUITE 128 W
ROCKVILLE CENTRE, NY 11570
Dentist (General Practice)
100 MERRICK RD, SUITE 106 EAST
ROCKVILLE CENTRE, NY 11570
Physician Assistant
100 MERRICK RD, SUITE 128W
ROCKVILLE CENTRE, NY 11570
Specialist/Technologist, Other
100 MERRICK RD
ROCKVILLE CENTRE, NY 11570
Neurological Surgery
100 MERRICK RD, SUITE 128 WEST
ROCKVILLE CENTRE, NY 11570
Plastic Surgery
100 MERRICK RD, SUITE 128 W
ROCKVILLE CENTRE, NY 11570

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 William Sonstein's NPI number?

The NPI number for William Sonstein is 1669495305. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Where is William Sonstein located?

William Sonstein practices at 100 Merrick Rd Suite 128 W, Rockville Centre, NY 11570. The listed phone number is (516) 255-9031.

What is William Sonstein's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is William Sonstein enrolled in Medicare?

Yes. William Sonstein 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 William Sonstein affiliated with any hospitals?

According to CMS data, William Sonstein is affiliated with Nyu Langone Hospitals and Chsli St Joseph Hospital.

When was this NPI record last updated?

The NPPES record for William Sonstein was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.