Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

PEDRO CASTELLO DIAZ
NPI 1770496705
Counselor - Addiction (Substance Use Disorder) in Newport Beach, CA

Q: What is Pedro Diaz's NPI number?

The NPI number for Pedro Diaz is 1770496705. It was assigned to this individual provider in the NPPES registry on September 22, 2026.

Q: What is Pedro Diaz's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Pedro Diaz was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since September 22, 2026

1300 QUAIL ST STE 210, NEWPORT BEACH, CA 92660(657) 767-3855 Get Directions Write a Review

NPPES record added: September 22, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

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About Pedro Castello Diaz NPPES

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

PEDRO CASTELLO DIAZ (NPI 1770496705) is an individual addiction (substance use disorder) provider in Newport Beach, California, licensed in California (22929) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1770496705

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NamePEDRO CASTELLO DIAZ

Location Address1300 QUAIL ST STE 210Newport Beach, CA 92660-2710

Mailing Address1300 Quail St Ste 210Newport Beach, CA 92660-2710

Phone(657) 767-3855

Sole ProprietorNo

Enumeration DateSeptember 22, 2026

NPPES CertifiedSeptember 22, 2026

✔ NPI 1770496705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in CA · 22929

1300 QUAIL ST STE 210, Newport Beach, CA 92660

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Other Providers at the Same Location NPPES 4

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

CHAE ANGELO JOHNSON II

Behavior Technician

1300 QUAIL ST STE 210
NEWPORT BEACH, CA 92660

Orange County (949) 889-1368

MR. ROBERT JOHN MASONIS III

Behavior Technician

1300 QUAIL ST STE 210
NEWPORT BEACH, CA 92660

Orange County (949) 889-1368

MASON NICHOLAS HELBERG SUDRC

Counselor (Mental Health)

1300 QUAIL ST STE 210
NEWPORT BEACH, CA 92660

Orange County (951) 834-8808

NEWPORT MENTAL HEALTH CENTER LLC

Clinic/Center (Adult Mental Health)

1300 QUAIL ST STE 210
NEWPORT BEACH, CA 92660

Orange County (323) 670-1111

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 Pedro Diaz's NPI number?

The NPI number for Pedro Diaz is 1770496705. It was assigned to this individual provider in the NPPES registry on September 22, 2026.

Where is Pedro Diaz located?

Pedro Diaz practices at 1300 Quail St Ste 210, Newport Beach, CA 92660. The listed phone number is (657) 767-3855.

What is Pedro Diaz's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Pedro Diaz was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.