Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GIANNINA MIXCO PENNISI
NPI 1053947424
Psychologist - Clinical Child & Adolescent in New York, NY

Q: What is Giannina Mixco Pennisi's NPI number?

The NPI number for Giannina Mixco Pennisi is 1053947424. It was assigned to this individual provider in the NPPES registry on March 18, 2020. The provider is also known as Giannina Mixco.

Q: What is Giannina Mixco Pennisi's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Active since March 18, 2020

ONE PARK AVENUE, NEW YORK, NY 10016(646) 754-5000(646) 754-9538 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 14, 2026, Mar 18, 2020 (2 updates tracked since 2020).

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About Giannina Mixco Pennisi NPPES

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

GIANNINA MIXCO PENNISI (NPI 1053947424) is an individual clinical child & adolescent provider in New York, New York and active in the NPI registry since March 2020.

NPPES Registry Identity

NPI1053947424

Entity TypeIndividualFemale

Primary Taxonomy103TC2200X

Provider Legal NameGIANNINA MIXCO PENNISI

Location AddressONE PARK AVENUENew York, NY 10016

Mailing AddressOne Park AvenueNew York, NY 10016 · (646) 754-5000 · Fax (646) 754-9538

Phone(646) 754-5000

Fax(646) 754-9538

Sole ProprietorNo

Enumeration DateMarch 18, 2020

Last NPPES UpdateJuly 14, 20262 updates tracked since enumeration

NPPES CertifiedJuly 14, 2026

✔ NPI 1053947424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers

Taxonomy Code103TC2200X

Definition

A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.

ONE PARK AVENUE, New York, NY 10016

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Other Names 1

Former Name (1)Giannina Mixco

Other Providers at the Same Location NPPES 6

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

MS. TAYLOR LAYNE WASYLYSHYN MSC

Student in an Organized Health Care Education/Training Program

ONE PARK AVENUE, 7TH FLOOR (NYU CHILD STUDY CENTER )
NEW YORK, NY 10016

New York County (646) 754-5000

DAVID ALEJANDRO LOPEZ MOLINA M.PHIL

Psychologist (Clinical Child & Adolescent)

ONE PARK AVENUE
NEW YORK, NY 10016

New York County (646) 754-5000

DR. LUCY ANGHARAD HUTNER MD

Psychiatry & Neurology (Psychosomatic Medicine)

ONE PARK AVENUE, 8TH FLOOR
NEW YORK, NY 10016

New York County (646) 754-4833

DR. MELISSA BROOKS MAHONEY PH.D.

Psychologist

ONE PARK AVENUE, 8TH FLOOR
NEW YORK, NY 10016

New York County (267) 483-7620

ERZULIE COQUILLON

Psychologist (Clinical)

ONE PARK AVENUE, 8TH FLOOR
NEW YORK, NY 10016

New York County (929) 573-1298

ERIC WHITNEY MD

Psychiatry & Neurology (Psychiatry)

ONE PARK AVENUE, EIGHTH FLOOR
NEW YORK, NY 10016

New York County (212) 263-7419

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 Giannina Mixco Pennisi's NPI number?

The NPI number for Giannina Mixco Pennisi is 1053947424. It was assigned to this individual provider in the NPPES registry on March 18, 2020. The provider is also known as Giannina Mixco.

Where is Giannina Mixco Pennisi located?

Giannina Mixco Pennisi practices at One Park Avenue, New York, NY 10016. The listed phone number is (646) 754-5000.

What is Giannina Mixco Pennisi's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

When was this NPI record last updated?

The NPPES record for Giannina Mixco Pennisi was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.