Quick answers
- Does Kathryn Stewart accept Medicare assignment?
- Medicare's clinician data says Kathryn Stewart may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Kathryn Stewart see?
- In 2024, CMS data shows 83 Original Medicare patients and 194 services for Kathryn Stewart. This counts Original Medicare only and measures volume, not quality.
- What is Kathryn Stewart's NPI number?
- 1720787450. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Kathryn Stewart, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 83 |
|---|---|
| Services billed to Medicare | 194 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)48 services
- Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus (87637)18 services
- X-ray of chest, 2 views (71046)15 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)14 services
- Automated urinalysis test (81003)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure72%
- High cholesterol63%
- Arthritis46%
- Diabetes33%
- Ischemic heart disease29%
- Anxiety22%
Practice locations
Addresses where Kathryn Stewart is enrolled with Medicare (CMS data updated October 2, 2026).
- 1100 New Jersey Ave SE, Suite 500Washington, DC 20003
Specialties
- Nurse Practitionerprimary
Find other clinicians: Nurse Practitioner, District of Columbia →
Other nurse practitioners in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1720787450 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians