MIA WALISZEWSKI MD
NPI 1629693718
Obstetrics & Gynecology in Washington, DC
About Mia Waliszewski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MIA WALISZEWSKI MD (NPI 1629693718) is an individual obstetrics & gynecology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD60004299) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Charleston, and is a graduate of University Of Virginia School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mia Waliszewski Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mia Waliszewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fulton, MD 20759
- Reassigned Medicare billing, District of Columbia enrollment
- Medicare enrollment name: Capital Womens Care LLC
- 186 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20037 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mia Waliszewski's NPI number?
The NPI number for Mia Waliszewski is 1629693718. It was assigned to this individual provider in the NPPES registry on June 15, 2020.
Where is Mia Waliszewski located?
Mia Waliszewski practices at 2121 L St NW Ste 700, Washington, DC 20037. The listed phone number is (202) 331-9293.
What is Mia Waliszewski's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Mia Waliszewski enrolled in Medicare?
Yes. Mia Waliszewski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mia Waliszewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mia Waliszewski reassigns Medicare benefits to Capital Women's Care, L.L.C. (Fulton, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mia Waliszewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mia Waliszewski was last updated on July 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mia Waliszewski, MD · NPI 1629693718
Obstetrics & Gynecology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since June 15, 2020.
## Identity
- **NPI:** 1629693718 (Entity type: Individual)
- **Enumerated:** June 15, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD60004299 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 2121 L ST NW STE 700, Washington, DC 20037-1524
- **Phone:** (202) 331-9293 · **Fax:** (410) 584-1739
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Capital Women's Care, L.L.C. (NPI 1679534069, Fulton, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Virginia School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** July 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1629693718) · Data from the CMS NPPES public registry.