Individual provider Active NPI

Mark Kreimer, DO

  • Emergency Medicine Physician
  • Brooklyn, NY
National Provider Identifier
1255735221
Registry record updated Oct 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
288572 Issued in NY
Practice address
Nyp: Brooklyn Methodist Hospital Department of Em
506 6TH Street
Brooklyn, NY 11215
Phone
(718) 780-5040
NPI assigned
Oct 20, 2014
Last updated
Oct 28, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 28, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 288572 NY Primary
Emergency Medicine Physician 207P00000X OS17564 FL

Addresses

Primary practice location

Nyp: Brooklyn Methodist Hospital Department of Em
506 6TH Street
Brooklyn, NY 11215

Mailing address

506 6TH Street
New York Presbyterian Brooklyn Methodist Hospital
Brooklyn, NY 11215
Phone (718) 780-5040

Other names 1

  • Dr. Mark Kreimer Professional name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, NJ, FL3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20170814000659 NY Practitioner - Emergency Medicine 4789955568 Reassigns benefits to 6 organizations
I20181115000272 NJ Practitioner - Emergency Medicine 4789955568 Reassigns benefits to 3 organizations
I20220509002235 FL Practitioner - Emergency Medicine 4789955568 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
New York College of Osteo Medicine of New York Institute of Technology, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Dobbs Ferry Emergency Medicine, PCGroup PAC ID 8022908268, 39 clinicians
Paragon Contracting Services LLCGroup PAC ID 3971417825, 404 clinicians
North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians
Emed LLPGroup PAC ID 1557259975, 28 clinicians

Practice addresses (Care Compare)

128 Ashford Ave
Dobbs Ferry, NY 10522-1924
Phone (914) 964-4370

2001 W 66TH St
Hialeah, FL 33016-1801
Phone (305) 364-2100

255 Lafayette Ave
Suffern, NY 10901-4812
Phone (845) 368-5000

401 E 55TH St
New York, NY 10022-4103
Phone (212) 593-9800

800 Meadows Rd
Boca Raton, FL 33486-2304
Phone (561) 395-7100

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
93.07 of 100Reported as apm
Quality
79.77
Promoting interoperability
88.77
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
OS17564FLMDEmergency Medicine Physician
288572NYMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Symphony Medical PC CurrentSince Feb 1, 2020 Accepting new patients
E-Med LLP CurrentSince Dec 1, 2025 Accepting new patients
Symphony Medical PC CurrentSince Feb 1, 2020 Accepting new patients
North Shore-Lij Medical PC Emergency Medicine CurrentSince Sep 1, 2023 Accepting new patients
Physicians Medical Associates New York PC Emergency Medicine Current Accepting new patients
Kings Physician Services, PC CurrentSince Mar 12, 2021 Accepting new patients
Paragon Contracting Services LLC Emergency Medicine CurrentSince Feb 1, 2026 Accepting new patients
Halifax Healthcare Systems Inc Emergency Medicine CurrentSince May 4, 2022 Accepting new patients
Josef Schenker MD PC CurrentSince May 1, 2022 Accepting new patients
Kings Physician Services, PC Emergency Medicine CurrentSince Mar 12, 2021 Accepting new patients
Dobbs Ferry Emergency Medicine, PC Emergency Medicine CurrentSince Feb 17, 2020 Accepting new patients
Physicians Medical Associates New York PC Emergency Medicine CurrentSince Sep 12, 2024 Accepting new patients
Symphony Medical PC Current Accepting new patients
Rwjbh Observation Associates LLC Emergency Medicine CurrentSince Aug 9, 2022 Accepting new patients
Emergency Physicians of Englewood, PC Emergency Medicine CurrentSince Nov 1, 2018 Accepting new patients
Rwjbh Emergency Medicine Associates, LLC Emergency Medicine CurrentSince Apr 1, 2023 Accepting new patients

Locations

2100 Powell St
Ste 400
Emeryville, CA 94608
Phone (510) 350-2638

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

10125 Glades Rd
Boca Raton, FL 33498
Phone (561) 309-7815

800 Meadows Rd
Boca Raton, FL 33486
Phone (561) 395-7100

303 N Clyde Morris Blvd
Daytona Beach, FL 32114
Phone (386) 425-2285

651 E 25th St
Hialeah, FL 33013
Phone (305) 835-4370

2001 W 68th St
Miami Lakes, FL 33016
Phone (305) 364-2151

225 Williamson St
Elizabeth, NJ 07202
Phone (908) 994-5204

350 Engle St
Englewood, NJ 07631
Phone (201) 871-6073

600 River Ave
Lakewood, NJ 08701
Phone (732) 363-1900

94 Old Short Hills Rd
Livingston, NJ 07039
Phone (973) 322-5400

110 Rehill Ave
Somerville, NJ 08876
Phone (908) 429-5833

1 Hamilton Health Pl
Trenton, NJ 08690
Phone (609) 584-6763

4426 18th Ave
Brooklyn, NY 11204
Phone (718) 635-9700

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

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

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

300 Community Dr
Manhasset, NY 11030

6122 Fresh Pond Rd
Middle Vlg, NY 11379
Phone (718) 502-3000

100 E 77th St
New York, NY 10075
Phone (212) 434-2606

401 E 55th St
New York, NY 10022
Phone (212) 390-1020

241 North Rd
Poughkeepsie, NY 12601
Phone (845) 431-8889

1 Edgewater St
Fl 6
Staten Island, NY 10305
Phone (718) 226-1047

255 Lafayette Ave
Suffern, NY 10901
Phone (845) 357-7830

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

Networks

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

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/23390/brand/1/csg/1/fhir/r4
  • Direct secure messaging: mkreimer65203@northwell.direct-ci.com

Organizations & group practices 16

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.

View all 16

Hospital & facility affiliations 4

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": "1413763200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761609600000",
    "number": "1255735221",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "506 6TH STREET",
            "address_2": "NEW YORK PRESBYTERIAN BROOKLYN METHODIST HOSPITAL",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11215",
            "telephone_number": "718-780-5040"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "NYP: BROOKLYN METHODIST HOSPITAL DEPARTMENT OF EM",
            "address_2": "506 6TH STREET",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11215",
            "telephone_number": "718-780-5040"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KREIMER",
        "first_name": "MARK",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-10-20",
        "last_updated": "2025-10-28",
        "certification_date": "2025-10-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "288572",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "FL",
            "license": "OS17564",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARK",
            "last_name": "KREIMER",
            "prefix": "DR.",
            "credential": "D.O.",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

Other providers in Brooklyn, NY

Sources for this page

Verify at the official NPI Registry.