Individual provider Active NPI

Leonid Lev Topper, MD

  • Neurology with Special Qualifications in Child Neurology Physician
  • Warren, NJ
National Provider Identifier
1851487193
Registry record updated Oct 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology with Special Qualifications in Child Neurology PhysicianTaxonomy code 2084N0402X
License
25MA07962300 Issued in NJ
Practice address
34 Mountain Blvd Ste B
Warren, NJ 07059-2640
Phone
(908) 769-2574
NPI assigned
Oct 5, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 2, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology with Special Qualifications in Child Neurology Physician 2084N0402X 25MA07962300 NJ Primary

Addresses

Primary practice location

34 Mountain Blvd Ste B
Warren, NJ 07059-2640

Mailing address

34 Mountain Blvd Ste B
Warren, NJ 07059-2640
Phone (908) 769-2574

Other practice location 1

1601 NW 12th Ave
Miami, FL 33136-1005
Phone (305) 243-3100

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, NJ2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20031107000239 NY Practitioner - NeurologyPractitioner - Pediatric Medicine 6507779469 Reassigns benefits to 3 organizations
I20090515000209 NJ Practitioner - NeurologyPractitioner - Pediatric Medicine 6507779469 Reassigns benefits to 2 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
001729NYMDMarriage & Family Therapist
25MA07962300NJMDNeurology with Special Qualifications in Child Neurology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Physician Affiliate Group of New York PC CurrentSince Aug 3, 2025 Accepting new patients
Advocare , LLC CurrentSince Apr 1, 2009 Accepting new patients
Downtown Bronx Medical Associates PC CurrentSince Apr 1, 2007 Accepting new patients
Summit Medical Group PA CurrentSince Sep 12, 2016 Accepting new patients
Harlem Medical Associates PC CurrentSince Sep 5, 2011 Accepting new patients
Advocare, LLC CurrentSince Apr 1, 2009 Accepting new patients
Summit Medical Group PA CurrentSince Sep 12, 2016 Accepting new patients
Summit Medical Group, Inc Past Accepting new patients
North Shore-Lij Medical PC Past Accepting new patients

Locations

1 Diamond Hill Rd
Berkeley Heights, NJ 07922
Phone (908) 277-8868

132 Grove St
Ste A
Haddonfield, NJ 08033
Phone (856) 354-2211

402 Lippincott Dr
Marlton, NJ 08053
Phone (410) 763-8787

25 Lindsley Dr
Ste 205
Morristown, NJ 07960
Phone (973) 993-8777

150 Floral Ave
New Providence, NJ 07974
Phone (908) 588-3890

34 Mountain Blvd
Ste B
Warren, NJ 07059
Phone (908) 561-8600

234 Eugenio Maria de Hosto Blvd
Bronx, NY 10451
Phone (718) 579-5874

2601 Ocean Pkwy
Brooklyn, NY 11235
Phone (718) 616-5354

506 Malcolm X Blvd
New York, NY 10037
Phone (212) 939-1000

45 Research Way
Ste 206
Setauket, NY 11733
Phone (631) 575-9300

Networks

  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H9678

Interoperability endpoints

  • Direct secure messaging: leonid.topper.1@2983.direct.athenahealth.com

Organizations & group practices 9

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.

NPI Registry JSON

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

{
    "created_epoch": "1160006400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759363200000",
    "number": "1851487193",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "34 MOUNTAIN BLVD STE B",
            "city": "WARREN",
            "state": "NJ",
            "postal_code": "070592640",
            "telephone_number": "908-769-2574"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "34 MOUNTAIN BLVD STE B",
            "city": "WARREN",
            "state": "NJ",
            "postal_code": "070592640",
            "telephone_number": "908-769-2574"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1601 NW 12th Ave",
            "address_purpose": "LOCATION",
            "city": "Miami",
            "state": "FL",
            "postal_code": "331361005",
            "country_code": "US",
            "telephone_number": "305-243-3100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TOPPER",
        "first_name": "LEONID",
        "middle_name": "LEV",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-05",
        "last_updated": "2025-10-02",
        "certification_date": "2025-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0402X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology",
            "state": "NJ",
            "license": "25MA07962300",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Warren, NJ

Sources for this page

Verify at the official NPI Registry.