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DR. JULIET WILLIAMS PSYD
NPI 1215084231
Psychologist - Clinical in Stony Brook, NY

Active since January 04, 2007Opted out of Medicare · through Dec 26, 2027
2500 NESCONSET HWY., STONY BROOK MEDICAL PARK, BLDG 5D, STONY BROOK, NY 11790(631) 941-3700(631) 754-1642 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Juliet Williams Psyd NPPES

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

DR. JULIET WILLIAMS PSYD (NPI 1215084231) is an individual clinical provider in Stony Brook, New York, licensed in New York (014327) and active in the NPI registry since January 2007. She has opted out of Medicare through December 26, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1215084231
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. JULIET WILLIAMSCredential: PSYD
Location Address2500 NESCONSET HWY., STONY BROOK MEDICAL PARK, BLDG 5DStony Brook, NY 11790
Mailing Address2500 Nesconset Hwy., Stony Brook Medical Park, Bldg 5dStony Brook, NY 11790 · (631) 941-3700 · Fax (631) 754-1642
Phone(631) 941-3700
Fax(631) 754-1642
Sole ProprietorYes
Enumeration DateJanuary 4, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1215084231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in NY · 014327
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
2500 NESCONSET HWY., Stony Brook, NY 11790
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Other Identifiers 1

Medicare ID-Type UnspecifiedVS0541NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Juliet Williams Psyd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from December 26, 2017 through December 26, 2027.

Opt-Out Effective DateDecember 26, 2017
Opt-Out In Effect ThroughDecember 26, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11790 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
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
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 2

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

MARK C MARINO MA, PT
Specialist
2500 NESCONSET HWY., BLDG. 22B
STONY BROOK, NY 11790
Suffolk County (631) 751-7988
NORTH ISLAND PHYSICAL THERAPY, PC
Specialist
2500 NESCONSET HWY., BLDG. 22B
STONY BROOK, NY 11790
Suffolk County (631) 751-7988

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 Juliet Williams's NPI number?

The NPI number for Juliet Williams is 1215084231. It was assigned to this individual provider in the NPPES registry on January 4, 2007.

Where is Juliet Williams located?

Juliet Williams practices at 2500 Nesconset Hwy. Stony Brook Medical Park, Bldg 5D, Stony Brook, NY 11790. The listed phone number is (631) 941-3700.

What is Juliet Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Juliet Williams enrolled in Medicare?

No. Juliet Williams has opted out of Medicare through December 26, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Juliet Williams 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.