Individual provider Active NPI

Katherine Eleanor Dertz, M.D.

  • Obstetrics & Gynecology Physician
  • Washington, DC
National Provider Identifier
1104276021
Registry record updated Mar 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
MD600003438 Issued in DC
Practice address
2120 L St NW Ste 700
Washington, DC 20037-1543
Phone
(202) 331-9293
NPI assigned
Jun 22, 2016
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 3, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X 4301109765 MI
Obstetrics & Gynecology Physician 207V00000X MD600003438 DC Primary

Addresses

Primary practice location

2120 L St NW Ste 700
Washington, DC 20037-1543

Mailing address

5801 Postal Rd Unit 81310
Cleveland, OH 44181-2112
Phone (301) 340-8339

Other practice location 1

945 Ottawa Ave NW
Grand Rapids, MI 49503-1431
Phone (616) 391-1929

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, DC2 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
I20211118000318 MA Practitioner - Obstetrics/Gynecology 7113200825 Reassigns benefits to 1 organization
I20250313000100 DC Practitioner - Obstetrics/Gynecology 7113200825 Reassigns benefits to 1 organization

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Afa Midwifery, Obstetrics & Gynecology Obstetrics & Gynecology CurrentSince Nov 15, 2021 Accepting new patients
Capital Women's Care, L.L.C. Obstetrics & Gynecology CurrentSince Mar 1, 2025 Accepting new patients
Emerson Hospital Past Accepting new patients

Locations

131 Ornac
Ste 830
Concord, MA 01742
Phone (978) 369-7772

9711 Medical Center Dr
Ste 109
Rockville, MD 20850
Phone (301) 762-5501

Interoperability endpoints

  • Direct secure messaging: katherine.dertz.p1@direct.cwcare.nextgenshare.com

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.

NPI Registry JSON

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

{
    "created_epoch": "1466553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1740960000000",
    "number": "1104276021",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5801 POSTAL RD UNIT 81310",
            "city": "CLEVELAND",
            "state": "OH",
            "postal_code": "441812112",
            "telephone_number": "301-340-8339"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2120 L ST NW STE 700",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200371543",
            "telephone_number": "202-331-9293"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "945 Ottawa Ave NW",
            "address_purpose": "LOCATION",
            "city": "Grand Rapids",
            "state": "MI",
            "postal_code": "495031431",
            "country_code": "US",
            "telephone_number": "616-391-1929",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DERTZ",
        "first_name": "KATHERINE",
        "middle_name": "ELEANOR",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-06-22",
        "last_updated": "2025-03-03",
        "certification_date": "2025-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "MI",
            "license": "4301109765",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "DC",
            "license": "MD600003438",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.