NPIMap

Individual provider Active NPI

Mark Fenig, M.D., MPH

  • Emergency Medicine Physician
  • New York, NY
National Provider Identifier
1114101169
Registry record updated Apr 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
267120 Issued in NY
Practice address
1275 York Ave
New York, NY 10065-6007
Phone
(212) 639-2000
NPI assigned
Dec 27, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 27, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 267120 NY Primary

Addresses

Primary practice location

1275 York Ave
New York, NY 10065-6007

Mailing address

201 Manor PL
Greenport, NY 11944-1222
Phone (631) 477-1000

Other practice location 1

201 Manor Pl
Greenport, NY 11944-1222
Phone (631) 477-1000

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100921000542 NY Practitioner - Emergency Medicine 4486779931 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Memorial Urgent Care GroupGroup PAC ID 6507878675, 46 clinicians
Malina Medical Services PCGroup PAC ID 3779943600, 33 clinicians

Practice addresses (Care Compare)

1275 York Ave
New York, NY 10065-6007
Phone (212) 639-7203

7 W 96TH St
Apt 1H
New York, NY 10025-6514
Phone (201) 483-3760

Hospital & facility affiliations

  • Suny/Stony Brook University Hospital Hospital, Stony Brook, NY, CCN 330393
  • Memorial Hospital for Cancer and Allied Diseases Hospital, New York, NY, CCN 330154

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
003553NYMDAcupuncturist
267120NYMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Downtown Bronx Medical Associates PC CurrentSince Aug 30, 2015 Accepting new patients
Montefiore Medical Center CurrentSince Dec 4, 2017 Accepting new patients
Malina Medical Services PC Emergency Medicine CurrentSince Sep 16, 2024 Accepting new patients
Montefiore Medical Center Emergency Medicine CurrentSince Dec 4, 2017 Accepting new patients
Stony Brook Emergency Physicians, University Faculty Practice Corporat Emergency Medicine CurrentSince Mar 1, 2022 Accepting new patients
Medical Health Services PC Emergency Medicine PastSince Nov 9, 2025 Accepting new patients

Locations

111 E 210th St
Bronx, NY 10467

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

201 Manor Pl
Greenport, NY 11944
Phone (631) 477-1000

7 W 96th St
Apt 1H
New York, NY 10025
Phone (201) 483-3760

6 E 39th St
Ste 600
New York, NY 10016
Phone (201) 483-3760

1 Heroes Way
Riverhead, NY 11901
Phone (631) 548-6000

Organizations & group practices 7

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 11

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": "1198713600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777248000000",
    "number": "1114101169",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "201 MANOR PL",
            "city": "GREENPORT",
            "state": "NY",
            "postal_code": "119441222",
            "telephone_number": "631-477-1000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "212-639-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "201 Manor Pl",
            "address_purpose": "LOCATION",
            "city": "Greenport",
            "state": "NY",
            "postal_code": "119441222",
            "country_code": "US",
            "telephone_number": "631-477-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FENIG",
        "first_name": "MARK",
        "name_prefix": "Dr.",
        "credential": "M.D., MPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-12-27",
        "last_updated": "2026-04-27",
        "certification_date": "2026-04-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "267120",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.