Ronald Calderwood, PH.D

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

004295-1 Issued in NY

Practice address

40 Park Ave Apt 4B
New York, NY 10016-3456

Phone

(917) 242-5931

NPI assigned

Sep 1, 2009

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Other names 1

• Dr. Ronald Katz Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Ronald Calderwood

  • Mental Health Counselor
  • New York, NY
  • NPI 1023657905
  NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1251763200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741219200000",
    "number": "1124251673",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "40 PARK AVE APT 4B",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100163456",
            "telephone_number": "917-242-5931"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "40 PARK AVE APT 4B",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100163456",
            "telephone_number": "917-242-5931"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALDERWOOD",
        "first_name": "RONALD",
        "name_prefix": "Dr.",
        "credential": "PH.D",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2009-09-01",
        "last_updated": "2025-03-06",
        "certification_date": "2025-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "102L00000X",
            "taxonomy_group": "",
            "desc": "Psychoanalyst",
            "state": "NY",
            "license": "000845-1",
            "primary": false
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "NY",
            "license": "004295-1",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "RONALD",
            "last_name": "KATZ",
            "prefix": "DR.",
            "credential": "PH.D",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Rita L Calderon, LCSW
• Rosa Calderon
• Vanessa Calderon
• Wilmely Calderon
• Michaela Calderwood
• Blake Caldwell, MD, PHD
• Gregory M Caldwell, LCSW
• Horace Caldwell Jr., M.S., S.I., TSHH
• Jennifer A. Caldwell, RN, ANP
• John Reed Caldwell

• Mental Health Counselor in New York, NY
• Providers in New York, NY by specialty
• Mental Health Counselor in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 6, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.