Individual provider Active NPI

Tomasz Obrzut, M.D.

  • Emergency Medicine Physician
  • New Haven, CT
National Provider Identifier
1275761819
Registry record updated Sep 5, 2013
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
D0075939 Issued in MD
Practice address
20 York St # T-209
Yale-New Haven Hospital
New Haven, CT 06510-3220
Phone
(203) 688-2259
Fax
(203) 688-5599
NPI assigned
Jun 22, 2009
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 5, 2013

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 D0075939 MD Primary

Addresses

Primary practice location

20 York St # T-209
Yale-New Haven Hospital
New Haven, CT 06510-3220

Mailing address

123 York St
Apt 20J
New Haven, CT 06511-5614
Phone (202) 247-7541

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, MD2 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
I20130823000280 DC Practitioner - Emergency Medicine 2264675271 Reassigns benefits to 3 organizations
I20250703003846 MD Practitioner - Emergency Medicine 2264675271 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
George Washington University School of Medicine, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Emergency Physicians SPPSGroup PAC ID 0648594036, 18 clinicians

Practice addresses (Care Compare)

301 Saint Paul PL
Baltimore, MD 21202-2147
Phone (410) 332-9000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
D0075939MDMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America LLC Emergency Medicine CurrentSince Sep 14, 2025 Accepting new patients
Emergency Medicine Associates, PA Emergency Medicine CurrentSince May 15, 2024 Accepting new patients
Cep America LLC Emergency Medicine CurrentSince Sep 14, 2025 Accepting new patients
University of Maryland Emergency Medicine Associates, PA Emergency Medicine CurrentSince May 15, 2025 Accepting new patients
Emergency Physicians SPPS Emergency Medicine CurrentSince Jun 12, 2025 Accepting new patients
Emergency Medicine Associates P.a., P.C. Emergency Medicine Current Accepting new patients
Bethesda Emergency Associates LLC Emergency Medicine CurrentSince Apr 1, 2019 Accepting new patients
Upper Chesapeake Emergency Medicine Physicians, LLC Emergency Medicine CurrentSince Dec 1, 2020 Accepting new patients
Cep America LLC Emergency Medicine Current Accepting new patients
Emergency Medicine Associates P.a., P.C. CurrentSince May 15, 2024 Accepting new patients
Memn Hospitalists, LLC Emergency Medicine Past Accepting new patients

Locations

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 350-2663

2041 Georgia Ave NW
Washington, DC 20060
Phone (202) 865-3785

821 N Eutaw St
Baltimore, MD 21201
Phone (410) 225-9185

22 S Greene St
Baltimore, MD 21201
Phone (410) 328-5793

8600 Old Georgetown Rd
Bethesda, MD 20814
Phone (301) 896-2578

15001 Health Center Dr
Bowie, MD 20716
Phone (301) 262-5511

3001 Hospital Dr
Hyattsville, MD 20785
Phone (301) 618-2000

7300 Van Dusen Rd
Laurel, MD 20707
Phone (301) 725-4300

1701 N George Mason Dr
Arlington, VA 22205
Phone (703) 558-5000

Interoperability endpoints

  • Direct secure messaging: tobrzut512010@direct.hopkinsmedicine.org

Organizations & group practices 11

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.

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": "1245628800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1378339200000",
    "number": "1275761819",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "123 YORK ST",
            "address_2": "APT 20J",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065115614",
            "telephone_number": "202-247-7541"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK ST # T-209",
            "address_2": "YALE-NEW HAVEN HOSPITAL",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-2259",
            "fax_number": "203-688-5599"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OBRZUT",
        "first_name": "TOMASZ",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2009-06-22",
        "last_updated": "2013-09-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MD",
            "license": "D0075939",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Haven, CT

Sources for this page

Verify at the official NPI Registry.