BILL PAPAGIANNOPOULOS MD
NPI 1750776738
Psychiatry & Neurology - Child & Adolescent Psychiatry in New York, NY

Q: What is Bill Papagiannopoulos's NPI number?

The NPI number for Bill Papagiannopoulos is 1750776738. It was assigned to this individual provider in the NPPES registry on April 6, 2015.

Q: What is Bill Papagiannopoulos's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Q: Is Bill Papagiannopoulos enrolled in Medicare?

No. Bill Papagiannopoulos has opted out of Medicare through December 20, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Active since April 06, 2015Opted out of Medicare · through Dec 20, 2026

31 WASHINGTON SQ W STE 6B, NEW YORK, NY 10011(646) 801-2951 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Bill Papagiannopoulos Md NPPES

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

BILL PAPAGIANNOPOULOS MD (NPI 1750776738) is an individual child & adolescent psychiatry provider in New York, New York, licensed in New York (3477321) and active in the NPI registry since April 2015. He has opted out of Medicare through December 20, 2026.

NPPES Registry Identity

NPI1750776738

Entity TypeIndividualMale

Primary Taxonomy2084P0804X

Provider Legal NameBILL PAPAGIANNOPOULOSCredential: MD

Location Address31 WASHINGTON SQ W STE 6BNew York, NY 10011-9126

Mailing Address31 Washington Sq W Ste 6bNew York, NY 10011-9126 · (646) 801-2951

Phone(646) 801-2951

Sole ProprietorNo

Enumeration DateApril 6, 2015

Last NPPES UpdateApril 28, 2026

NPPES CertifiedApril 28, 2026

✔ NPI 1750776738 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0804X

License✔ Licensed in NY · 3477321

Definition

Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 3477321 (NY)

31 WASHINGTON SQ W STE 6B, New York, NY 10011

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Bill Papagiannopoulos Md 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 20, 2022 through December 20, 2026.

Opt-Out Effective DateDecember 20, 2022

Opt-Out In Effect ThroughDecember 20, 2026Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES

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

BRENNAN PEDERSEN

Psychologist (Psychoanalysis)

31 WASHINGTON SQ W STE 6B
NEW YORK, NY 10011

New York County (206) 890-7816

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 Bill Papagiannopoulos's NPI number?

The NPI number for Bill Papagiannopoulos is 1750776738. It was assigned to this individual provider in the NPPES registry on April 6, 2015.

Where is Bill Papagiannopoulos located?

Bill Papagiannopoulos practices at 31 Washington Sq W Ste 6B, New York, NY 10011. The listed phone number is (646) 801-2951.

What is Bill Papagiannopoulos's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Bill Papagiannopoulos enrolled in Medicare?

No. Bill Papagiannopoulos has opted out of Medicare through December 20, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Bill Papagiannopoulos was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.