NPPES file of Aug 9, 2026

Sarah Sau-Ai Keung, RN

Critical Care Medicine Registered Nurse · Washington, DC

Sarah Sau-Ai Keung, RN is a critical care medicine registered nurse with a practice address in Washington, District of Columbia, and NPI 1609506450, issued on Jun 14, 2022. Check the license with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609506450
Name
Sarah Sau-Ai Keung
Credential
RN
Primary taxonomy
Critical Care Medicine Registered Nurse 163WC0200X
License numbers
95199485 CA
APN.1001067-CRNA CO
Self-reported in NPPES; status is on the state search
Practice location
3700 Reservoir RD NW, Washington, DC 20007
Phone
(202) 687-9087
Enumerated
Jun 14, 2022
Record last updated
Aug 12, 2025
Medicare enrollment
Enrolled (PECOS I20250826002263); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 3700 Reservoir RD NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Taylor AmbroseAmbulatory Women's Health Care Registered Nurse1942135181
  2. Catherine AngiersRegistered Nurse1003741471
  3. Emma Antall, MDStudent in an Organized Health Care Education/Training Program1821926254
  4. Genevieve ArdilaStudent in an Organized Health Care Education/Training Program1043137300
  5. Caroline BaptistaFamily Nurse Practitioner1720843121
  6. Kelsey BarnesWomen's Health Nurse Practitioner1164166732

Verify Sarah Sau-Ai Keung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich District of Columbia board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. US Anesthesia Partners OF Colorado IncEnglewood, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sarah Sau-Ai Keung among 27 critical care medicine registered nurse records in District of Columbia

Sarah Sau-Ai Keung, RN is one of 27 critical care medicine registered nurse records with a practice address in District of Columbia. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 15% of them.

  • NPI issued2022 · 15% of these records are older, 70% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 7% of these records are
  • Record last updated2025 · 15% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WC0200X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine Registered Nurse providers in District of Columbia

There are 27 critical care medicine registered nurse records in District of Columbia.

The 8 critical care medicine registered nurse records with the nearest ZIP codes

  1. Samuel Bieg, RNWashington, DC 200071174253363
  2. Ping Hu, RNWashington, DC 200071639091499
  3. Madison HudspethWashington, DC 200071174380216
  4. Judith KoWashington, DC 200071275468795
  5. Jessica KochWashington, DC 200071831024306
  6. Kathryn PatrickWashington, DC 200071265290431
  7. Kim RabiiWashington, DC 200071972437770
  8. Jennifer WallachWashington, DC 200071528994050

Common questions

What is Sarah Sau-Ai Keung, RN's NPI number?

Sarah Sau-Ai Keung, RN's National Provider Identifier (NPI) is 1609506450, issued on Jun 14, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Sau-Ai Keung, RN located?

The NPPES record lists a practice address at 3700 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 687-9087. Providers update this record themselves, so call before visiting.

How can I verify Sarah Sau-Ai Keung, RN's license?

Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.