NPPES file of Aug 9, 2026

Steven Sw Yau, PA

Physician Assistant · Stamford, CT

Steven Sw Yau, PA is a physician assistant with a practice address in Stamford, Connecticut, and NPI 1275651762, issued on Mar 26, 2007. Check the license with the Connecticut board that licenses this profession; 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
1275651762
Name
Steven Sw Yau
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
008277 NY
Self-reported in NPPES; status is on the state search
Practice location
1 Hospital Plz, Stamford, CT 06902
Phone
(203) 276-4400
Enumerated
Mar 26, 2007
Record last updated
Sep 30, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(203) 276-4401
Medicare enrollment
Enrolled (PECOS I20090908000538); 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 1 Hospital Plz

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

  1. Seun Adeyemi-Jones, M.D.Internal Medicine Physician1811335821
  2. Mathias Aihiokhai, PA-CPhysician Assistant1003270497
  3. Kiana AkhundzadehStudent in an Organized Health Care Education/Training Program1558115584
  4. Rachael AldermanStudent in an Organized Health Care Education/Training Program1912891318
  5. Kelsey AllenMedical Physician Assistant1326774282
  6. Micah Ambrose, DOEmergency Medicine Physician1962999482

Verify Steven Sw Yau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut 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 Connecticut 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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96% fewer Medicare Part D claims than the average physician assistant in 2024

33 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Steven Yau33
  2. Specialty average830

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 practice group's MIPS final score for 2023 (Medicare payment program): 79.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score73.2
  2. Costout of 100 · 30%57.9
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $54.19

2 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Steven Yau$54.19
  2. Specialty average$841.65

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. Stamford Health Medical Group IncStamford, CT

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

Steven Sw Yau among 2,047 physician assistant records in Connecticut

Steven Sw Yau, PA is one of 2,047 physician assistant records with a practice address in Connecticut. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 77% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2001 · median 2018 among the 1,338 with a school on file
  • Record last updated2019 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

82 physician assistant records list a practice address in Stamford

They are 82 of the 2,774 NPPES records with a practice address in Stamford, and 2,047 physician assistant records in Connecticut.

The 8 physician assistant records with the nearest ZIP codes

  1. Justina Antonio, PAStamford, CT 069021881733103
  2. Amanda Bradford, PA-CStamford, CT 069021467544122
  3. Richard Byrns, PA/CStamford, CT 069021821264656
  4. Debbie Clarke, PAStamford, CT 069021598007858
  5. Ebtisam Faddoul, PA-CStamford, CT 069021114294055
  6. Sarah Feigenbaum, PAStamford, CT 069021043590110
  7. David Fernandez, PAStamford, CT 069021558409417
  8. Anthony Giannuzzi, PA-CStamford, CT 069021649518978

Common questions

What is Steven Sw Yau, PA's NPI number?

Steven Sw Yau, PA's National Provider Identifier (NPI) is 1275651762, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Steven Sw Yau, PA located?

The NPPES record lists a practice address at 1 Hospital Plz, Stamford, CT, 06902. Phone: (203) 276-4400. Providers update this record themselves, so call before visiting.

How can I verify Steven Sw Yau, PA's license?

Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Steven Sw Yau, PA prescribe under Medicare Part D?

In 2024, Steven Sw Yau, PA had 33 Medicare Part D claims; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Steven Sw Yau, PA's MIPS final score?

The 2023 MIPS final score is 79.1 of 100, reported for the practice group. 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.