Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Miss. Clara Ngai Kay Kwan, MD

Individual provider Cardiovascular Disease Physician · NPI 1801183207

Miss. Clara Ngai Kay Kwan, MD is registered under Cardiovascular Disease (Cardiology) in Billings, Montana. Qualified in 2011, 15 years ago. Practices with Providence Health and Services- Washington, a 526-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
15
Licensed in
MT
In the registry since
2011
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2800 10th Ave N
Billings, MT 59101-0703
Phone: (406) 238-2500
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4802 10th Ave, Maimonides Medical Center, Brooklyn, NY 11219 — (718) 283-6000

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence MED-PHYS-LIC-66217 (MT)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 66217 (MT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1801183207
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2011
Last updated in NPPESFebruary 7, 2022
Certification dateFebruary 7, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Providence Health And Services- Washington — 526 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,269
Services billed 4,292 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Providence Health and Services- Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 526 clinicians in the practice; 12 are shown here.

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