Active NPI
Mia Waliszewski, MD
- Obstetrics & Gynecology Physician
- Washington, DC
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- MD60004299
- 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, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
Enrollment records 1
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
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
| License | State | Type | Specialty |
|---|---|---|---|
| MD60004299 | DC | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Capital Women's Care, L.L.C. | Obstetrics & Gynecology | Current | Accepting new patients |
Locations
9711 Medical Center Dr
Ste 109
Rockville, MD 20850
Phone (301) 762-5501
Interoperability endpoints
- mia.waliszewski.p1@direct.cwcare.nextgenshare.com
- 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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.