Individual provider Active NPI

Mia Waliszewski, MD

  • Obstetrics & Gynecology Physician
  • Washington, DC
National Provider Identifier
1629693718
Registry record updated Jul 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
MD60004299 Issued in DC
Practice address
2121 L St NW Ste 700
Washington, DC 20037-1524
Phone
(202) 331-9293
Fax
(410) 584-1739
NPI assigned
Jun 15, 2020
Last updated
Jul 21, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 21, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X MD60004299 DC Primary
Surgery Physician 208600000X LL84448 SC

Addresses

Primary practice location

2121 L St NW Ste 700
Washington, DC 20037-1524

Mailing address

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

Other practice location 1

169 Ashley Ave.
Room 202 Main Hospital MSC333
Charleston, SC 29425
Phone (843) 792-3072

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address waliszew@musc.edu Medical University of South Carolina

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
I20250826000824 DC Practitioner - Obstetrics/Gynecology 3173942125 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Virginia School of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Capital Womens Care LLCGroup PAC ID 4880582741, 281 clinicians

Practice addresses (Care Compare)

15225 Shady Grove Rd
Suite 306
Rockville, MD 20850-3275
Phone (301) 869-7644

2141 K St NW
Suite 808
Washington, DC 20037-1810
Phone (202) 331-9293

2301 Research Blvd
Suite 210
Rockville, MD 20850-3293
Phone (301) 569-6301

2301 Research Blvd
Suite 215
Rockville, MD 20850-3204
Phone (301) 424-3444

2440 M St NW
Suite 416
Washington, DC 20037-1449
Phone (202) 223-3006

9420 Key W Ave
Suite 415
Rockville, MD 20850-3334
Phone (301) 279-9400

9711 Medical Ctr Dr
Suite 109
Rockville, MD 20850-3381
Phone (301) 762-5501

9711 Medical Ctr Dr
Suite 320
Rockville, MD 20850-3386
Phone (301) 330-5401

9715 Medical Ctr Dr
Suite 415
Rockville, MD 20850-6312
Phone (301) 424-1696

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD60004299DCMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Capital Women's Care, L.L.C. Obstetrics & Gynecology CurrentSince Jul 28, 2025 Accepting new patients

Locations

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

Interoperability endpoints

  • Direct secure messaging: mia.waliszewski.p1@direct.cwcare.nextgenshare.com
  • Direct secure messaging: mwaliszewski186459@cityofhope.direct-ci.com

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1592179200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753056000000",
    "number": "1629693718",
    "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": "2121 L ST NW STE 700",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200371524",
            "telephone_number": "202-331-9293",
            "fax_number": "410-584-1739"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "169 Ashley Ave.",
            "address_2": "Room 202 Main Hospital MSC333",
            "address_purpose": "LOCATION",
            "city": "Charleston",
            "state": "SC",
            "postal_code": "29425",
            "country_code": "US",
            "telephone_number": "843-792-3072",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WALISZEWSKI",
        "first_name": "MIA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-06-15",
        "last_updated": "2025-07-21",
        "certification_date": "2025-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "DC",
            "license": "MD60004299",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "SC",
            "license": "LL84448",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "waliszew@musc.edu",
            "affiliation": "Y",
            "affiliationName": "Medical University of South Carolina",
            "address_1": "60 Barre St",
            "city": "Charleston",
            "state": "SC",
            "country_code": "US",
            "postal_code": "294011106",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.