Individual provider Active NPI

Leslie Mark, MD

  • Psychiatry Physician
  • Middletown, NY
National Provider Identifier
1356979546
Registry record updated Jun 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
328783 Issued in NY
Practice address
707 E Main St
Middletown, NY 10940-2650
Phone
(845) 333-7373
Fax
(845) 333-7342
NPI assigned
Apr 1, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 18, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 328783 NY Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

707 E Main St
Middletown, NY 10940-2650

Mailing address

707 E Main St
Middletown, NY 10940-2650
Phone (845) 333-7373

Other practice location 1

100 Madison Ave
Morristown, NJ 07960-6136
Phone (973) 971-5000

Other practice location 2

99 Beauvoir Ave
Summit, NJ 07901-3533
Phone (908) 522-2000

Electronic endpoints 3

TypeEndpointUseAffiliation
FHIR URL https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/R4/ Health Information Exchange (HIE)
Direct Messaging Address bfj9005@direct.nyp.org Direct
FHIR URL https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
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 1

Enrollment IDStateProvider typePAC IDDetails
I20250624003843 NY Practitioner - Psychiatry 1658883756 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kings Physician Services PCGroup PAC ID 0547579427, 643 clinicians

Practice addresses (Care Compare)

506 6TH St
FL 1
Brooklyn, NY 11215-3609
Phone (718) 780-5215

Hospital & facility affiliations

  • New York-Presbyterian Hospital Hospital, New York, NY, CCN 330101

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Kings Physician Services, PC Current Accepting new patients
Kings Physician Services, PC CurrentSince Aug 1, 2025 Accepting new patients
The New York and Presbyterian Hospital Past Accepting new patients

Locations

506 6th St
Ste B
Brooklyn, NY 11215
Phone (718) 780-3677

506 6th St
Brooklyn, NY 11215
Phone (718) 780-3279

506 6th St
Fl 1
Brooklyn, NY 11215
Phone (718) 780-5215

2649 Strang Blvd
Ste 304
Yorktown Heights, NY 10598
Phone (646) 745-6369

Networks

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

Interoperability endpoints

  • FHIR API: https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/R4/
  • FHIR API: https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/DSTU2/

Organizations & group practices 3

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.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1585699200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750204800000",
    "number": "1356979546",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "707 E MAIN ST",
            "city": "MIDDLETOWN",
            "state": "NY",
            "postal_code": "109402650",
            "telephone_number": "845-333-7373",
            "fax_number": "845-333-7342"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "707 E MAIN ST",
            "city": "MIDDLETOWN",
            "state": "NY",
            "postal_code": "109402650",
            "telephone_number": "845-333-7373",
            "fax_number": "845-333-7342"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Madison Ave",
            "address_purpose": "LOCATION",
            "city": "Morristown",
            "state": "NJ",
            "postal_code": "079606136",
            "country_code": "US",
            "telephone_number": "973-971-5000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "99 Beauvoir Ave",
            "address_purpose": "LOCATION",
            "city": "Summit",
            "state": "NJ",
            "postal_code": "079013533",
            "country_code": "US",
            "telephone_number": "908-522-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARK",
        "first_name": "LESLIE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-04-01",
        "last_updated": "2025-06-18",
        "certification_date": "2025-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NY",
            "license": "328783",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/R4/",
            "affiliation": "N",
            "endpointDescription": "FHIR",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "FHIR",
            "address_1": "506 6th St",
            "city": "Brooklyn",
            "state": "NY",
            "country_code": "US",
            "postal_code": "112153609",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "bfj9005@direct.nyp.org",
            "affiliation": "N",
            "endpointDescription": "Direct Address",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Direct Address",
            "address_1": "506 6th St",
            "city": "Brooklyn",
            "state": "NY",
            "country_code": "US",
            "postal_code": "112153609",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "FHIR",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "FHIR",
            "address_1": "506 6th St",
            "city": "Brooklyn",
            "state": "NY",
            "country_code": "US",
            "postal_code": "112153609",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Middletown, NY

Sources for this page

Verify at the official NPI Registry.