Individual provider Active NPI

Marlene Sadloo, A-GACNP

  • Gastroenterology Physician
  • Yonkers, NY
National Provider Identifier
1861085334
Registry record updated Sep 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
431938 Issued in NY
Practice address
967 N Broadway
Yonkers, NY 10701-1301
Phone
(914) 964-4444
NPI assigned
Feb 16, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 1, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X 431938 NY
Gastroenterology Physician 207RG0100X 431938 NY Primary
Nurse Practitioner 363L00000X 431938 NY
Adult Health Nurse Practitioner 363LA2200X 431938 NY

Addresses

Primary practice location

967 N Broadway
Yonkers, NY 10701-1301

Mailing address

506 N High St
Mount Vernon, NY 10552-3105
Phone (914) 513-1281

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210405001080 NY Practitioner - Nurse Practitioner 4789091091 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
SJR Medical, PCGroup PAC ID 5991608440, 43 clinicians

Practice addresses (Care Compare)

1088 N Broadway
Yonkers, NY 10701-1107
Phone (914) 966-9296

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
431938NYMDAdult Health Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
SJR Medical, PC Gastroenterology CurrentSince May 1, 2021 Accepting new patients

Locations

128 Ashford Ave
Dobbs Ferry, NY 10522
Phone (914) 245-8936

128 Ashford Ave
Fl 2
Dobbs Ferry, NY 10522
Phone (914) 693-6500

141 S Central Ave
Ste 301
Hartsdale, NY 10530
Phone (914) 713-3228

1088 N Broadway
Yonkers, NY 10701
Phone (914) 964-4965

967 N Broadway
Yonkers, NY 10701
Phone (914) 798-8956

1088 N Broadway
#2
Yonkers, NY 10701
Phone (914) 636-4466

Networks

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

Interoperability endpoints

  • Direct secure messaging: marlened@stjohnsmedicalpc.directmedgenehr.com

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1613433600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1861085334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "506 N HIGH ST",
            "city": "MOUNT VERNON",
            "state": "NY",
            "postal_code": "105523105",
            "telephone_number": "914-513-1281"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "967 N BROADWAY",
            "city": "YONKERS",
            "state": "NY",
            "postal_code": "107011301",
            "telephone_number": "914-964-4444"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SADLOO",
        "first_name": "MARLENE",
        "credential": "A-GACNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-02-16",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "NY",
            "license": "431938",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NY",
            "license": "431938",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "NY",
            "license": "431938",
            "primary": false
        },
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "NY",
            "license": "431938",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Yonkers, NY

Sources for this page

Verify at the official NPI Registry.