NPPES file of Aug 9, 2026

Clara Ngai Kay Kwan, M.D.

Cardiovascular Disease Physician · Billings, MT

Clara Ngai Kay Kwan, M.D. is a cardiovascular disease physician with a practice address in Billings, Montana, and NPI 1801183207, issued on Jul 6, 2011. Check the license (Montana MED-PHYS-LIC-66217, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801183207
Name
Clara Ngai Kay Kwan
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License numbers
MED-PHYS-LIC-66217 MT
66217 MT
Self-reported in NPPES; status is on the state search
Practice location
2800 10TH Ave N, Billings, MT 59101
Phone
(406) 238-2500
Enumerated
Jul 6, 2011
Record last updated
Feb 7, 2022
Medicare enrollment
Enrolled (PECOS I20250610001032); 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.
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Also registered at 2800 10TH Ave N

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

  1. Ellen Absher, FNP-CFamily Nurse Practitioner1609709997
  2. Kimberly Ackerman, FNPAdult Health Nurse Practitioner1922032861
  3. Deborah Agnew, MDPediatrics Physician1134178072
  4. Stefan AlinteCertified Registered Nurse Anesthetist1518899053
  5. Erin Allen, MDPediatrics Physician1801052758
  6. Nathan Allen, M.D.Emergency Medicine Physician1356676878

Verify Clara Ngai Kay Kwan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license MED-PHYS-LIC-66217
    Check 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
Open the Montana 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.

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7% more Medicare Part D claims than the average cardiovascular disease physician in 2024

3,300 Medicare Part D claims for 435 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Clara Kwan3,300
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate345 claims
  2. Atorvastatin Calcium323 claims
  3. Losartan Potassium235 claims
  4. Carvedilol220 claims
  5. Furosemide216 claims
  6. Lisinopril185 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 97.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $23.37

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Clara Kwan$23.37
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Providence Health And Services- WashingtonEverett, WA

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

Clara Ngai Kay Kwan among 64 cardiovascular disease physician records in Montana

Clara Ngai Kay Kwan, M.D. is one of 64 cardiovascular disease physician records with a practice address in Montana. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 81% of them.

  • NPI issued2011 · 81% of these records are older, 14% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2011 · median 2000 among the 47 with a school on file
  • Record last updated2022 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Montana

There are 64 cardiovascular disease physician records in Montana.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Christopher Anzalone, D.O.Billings, MT 591011346604865
  2. Joseph Apostol, M.D.Billings, MT 591011497781512
  3. Fernando Boschini, MDBillings, MT 591011891714770
  4. Joseph Condon, MDBillings, MT 591011831257286
  5. Walter Degnan, MDBillings, MT 591011558384404
  6. Barbara Dudczak, MDBillings, MT 591011821026246
  7. Emily HansonBillings, MT 591011205255494
  8. Benjamin Plank, MDBillings, MT 591011053462200

Common questions

What is Clara Ngai Kay Kwan, M.D.'s NPI number?

Clara Ngai Kay Kwan, M.D.'s National Provider Identifier (NPI) is 1801183207, issued on Jul 6, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Clara Ngai Kay Kwan, M.D. located?

The NPPES record lists a practice address at 2800 10TH Ave N, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.

How can I verify Clara Ngai Kay Kwan, M.D.'s license?

NPPES lists Montana license number MED-PHYS-LIC-66217, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Clara Ngai Kay Kwan, M.D. prescribe under Medicare Part D?

In 2024, Clara Ngai Kay Kwan, M.D. had 3,300 Medicare Part D claims for 435 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is Clara Ngai Kay Kwan, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.