Individual provider Active NPI

Mehrnaz Momenian Millwater, M.D.

  • Internal Medicine Physician
  • Washington, DC
National Provider Identifier
1902122476
Registry record updated Jun 2, 2016
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MD041592 Issued in DC
Practice address
110 Irving St NW
Washington, DC 20010-3017
Phone
(202) 877-7227
NPI assigned
Apr 8, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 2, 2016

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD041592 DC Primary

Addresses

Primary practice location

110 Irving St NW
Washington, DC 20010-3017

Mailing address

4911 Tilden St NW
Washington, DC 20016-2331
Phone (703) 593-2301

Other names 1

  • Dr. Mehrnaz Haji-Momenian Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC
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 1

Enrollment IDStateProvider typePAC IDDetails
I20140311001254 DC Practitioner - Internal Medicine 5698905743 Reassigns benefits to 3 organizations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Medstar Medical Group II LLC CurrentSince May 1, 2025 Accepting new patients
WHC Emerg Phys CurrentSince Sep 1, 2013 Accepting new patients
Medstar Medical Group II LLC CurrentSince Aug 21, 2017 Accepting new patients
WHC Physician Group LLC CurrentSince Sep 1, 2013 Accepting new patients
MGMC, LLC CurrentSince Aug 21, 2017 Accepting new patients
Medstar Medical Group II LLC CurrentSince May 1, 2025 Accepting new patients

Locations

1145 19th St NW
Ste 311
Washington, DC 20036
Phone (202) 429-2401

110 Irving St NW
Washington, DC 20010
Phone (202) 877-2000

3800 Reservoir Rd NW
Washington, DC 20007
Phone (202) 687-2203

Organizations & group practices 6

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": "1270684800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1464825600000",
    "number": "1902122476",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4911 TILDEN ST NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200162331",
            "telephone_number": "703-593-2301"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "110 IRVING ST NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200103017",
            "telephone_number": "202-877-7227"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MILLWATER",
        "first_name": "MEHRNAZ",
        "middle_name": "MOMENIAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-04-08",
        "last_updated": "2016-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DC",
            "license": "MD041592",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MEHRNAZ",
            "last_name": "HAJI-MOMENIAN",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.