DR. RONALD CALDERWOOD PH.D
NPI 1124251673
Counselor - Mental Health in New York, NY

Q: What is Ronald Calderwood's NPI number?

The NPI number for Ronald Calderwood is 1124251673. It was assigned to this individual provider in the NPPES registry on September 1, 2009. The provider is also known as Dr. Ronald Katz Ph.D.

Q: What is Ronald Calderwood's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Calderwood was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since September 01, 2009

40 PARK AVE APT 4B, NEW YORK, NY 10016(917) 242-5931 Get Directions Write a Review

NPPES record last updated: March 6, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Ronald Calderwood Ph.d NPPES

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

DR. RONALD CALDERWOOD PH.D (NPI 1124251673) is an individual mental health provider in New York, New York, licensed in New York (004295-1) and active in the NPI registry since September 2009.

NPPES Registry Identity

NPI1124251673

Entity TypeIndividualMale

Primary Taxonomy101YM0800X

Provider Legal NameDR. RONALD CALDERWOODCredential: PH.D

Location Address40 PARK AVE APT 4BNew York, NY 10016-3456

Mailing Address40 Park Ave Apt 4bNew York, NY 10016-3456 · (917) 242-5931

Phone(917) 242-5931

Sole ProprietorYes

Enumeration DateSeptember 1, 2009

Last NPPES UpdateMarch 6, 2025

NPPES CertifiedMarch 6, 2025

✔ NPI 1124251673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in NY · 004295-1

Also ListedPsychoanalystTaxonomy 102L00000X · License 000845-1 (NY)

40 PARK AVE APT 4B, New York, NY 10016

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Other Names 1

Former Name (1)Dr. Ronald Katz Ph.d

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 Ronald Calderwood's NPI number?

The NPI number for Ronald Calderwood is 1124251673. It was assigned to this individual provider in the NPPES registry on September 1, 2009. The provider is also known as Dr. Ronald Katz Ph.D.

Where is Ronald Calderwood located?

Ronald Calderwood practices at 40 Park Ave Apt 4B, New York, NY 10016. The listed phone number is (917) 242-5931.

What is Ronald Calderwood's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Ronald Calderwood was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.