Institute for Change

Primary specialty

Registered DietitianTaxonomy code 133V00000X

Legal business name

INSTITUTE FOR CHANGE

Practice address

460 Bloomfield Ave
Montclair, NJ 07042-3582

Phone

(973) 734-0780

NPI assigned

Dec 30, 2006

Organization subpart

No

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

Authorized official

Name

Dr. David Szmak, PSY.D.NPI 1619033842

Title

Director

Phone

(973) 734-0780

Specialties & licenses 3

Addresses

Locations

Practitioners 4

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• David George Szmak, PSY.D.

  • Psychologist
  • Montclair, NJ
  • NPI 1619033842
  NPD (past) Authorized official
• Courtney Lee Gravenese, MS, RD

  • Registered Dietitian
  • Montclair, NJ
  • NPI 1912064239

  Dietitian, Registered

  NPD (past)
• Ron Handelman, PH.D.

  • Psychologist
  • Montclair, NJ
  • NPI 1003973678
  NPD (past)
• Jane Ellen Holzman, LCSW

  • Clinical Social Worker
  • Montclair, NJ
  • NPI 1316092687
  NPD (past)

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

{
    "created_epoch": "1167436800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1982760112",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "460 BLOOMFIELD AVE",
            "city": "MONTCLAIR",
            "state": "NJ",
            "postal_code": "070423582",
            "telephone_number": "973-734-0780"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "460 BLOOMFIELD AVE",
            "city": "MONTCLAIR",
            "state": "NJ",
            "postal_code": "070423582",
            "telephone_number": "973-734-0780"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "INSTITUTE FOR CHANGE",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-12-30",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "SZMAK",
        "authorized_official_first_name": "DAVID",
        "authorized_official_title_or_position": "DIRECTOR",
        "authorized_official_telephone_number": "973-734-0780",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PSY.D."
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychologist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Social Worker",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dietitian, Registered",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Inspire & Elevate PC
• Insyte Psychiatric LLC
• Integrated Healthcare of Montclair, LLC
• Integrated Medical Associates LLC (na)
• Integrative Functional Medicine Associates LLC
• Integrative Spine & Orthopedic Rehabilitation

• Registered Dietitian in Montclair, NJ
• Providers in Montclair, NJ by specialty
• Registered Dietitian in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.