NPPES file of Aug 9, 2026

Catherine Susan Tan

Physician Assistant · Williston Park, NY

Catherine Susan Tan is a physician assistant with a practice address in Williston Park, New York, and NPI 1275135287, issued on Nov 13, 2020. Check the license with the New York 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275135287
Name
Catherine Susan Tan
Primary taxonomy
Physician Assistant 363A00000X
Practice location
710 Foch Blvd, Williston Park, NY 11596
Phone
(516) 606-9640
Enumerated
Nov 13, 2020
Record last updated
Nov 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211222001303); 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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Verify Catherine Susan Tan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York 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
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40% fewer Medicare Part D claims than the average physician assistant in 2024

496 Medicare Part D claims for 176 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Catherine Tan496
  2. Specialty average830

Most prescribed

  1. Ketoconazole94 claims
  2. Triamcinolone Acetonide69 claims
  3. Hydrocortisone66 claims
  4. Mupirocin34 claims
  5. Clobetasol Propionate31 claims
  6. Betamethasone Dipropionate24 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.

Industry payments in 2024: $2,367.32

120 payments; by number, the most common kind was food and beverage; the largest payer was Dermavant Sciences, Inc. 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. Catherine Tan$2,367.32
  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. Schweiger Dermatology PLLCNew York, NY

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

Catherine Susan Tan among 15,555 physician assistant records in New York

Catherine Susan Tan is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 61% of them.

  • NPI issued2020 · 61% of these records are older, 34% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2020 · median 2018 among the 8,158 with a school on file
  • Record last updated2020 · 48% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 physician assistant records list a practice address in Williston Park

They are 3 of the 262 NPPES records with a practice address in Williston Park, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Carli Alin, PHYSICIAN ASSISTANTWilliston Park, NY 115961245505817
  2. Martin Ronan, PA-CWilliston Park, NY 115961154746071
  3. Yusra AhmedWoodmere, NY 115981538936497
  4. Julia Ben-Jacob, PA-CWoodmere, NY 115981255836433
  5. Leora Bornstein, PA-CWoodmere, NY 115981730726829
  6. Rebecca GanchrowWoodmere, NY 115981376392209
  7. Rebecca Kahn, PA-CWoodmere, NY 115981346800844
  8. Michael Kolb, PA-CWoodmere, NY 115981013418540

Common questions

What is Catherine Susan Tan's NPI number?

Catherine Susan Tan's National Provider Identifier (NPI) is 1275135287, issued on Nov 13, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Susan Tan located?

The NPPES record lists a practice address at 710 Foch Blvd, Williston Park, NY, 11596. Phone: (516) 606-9640. Providers update this record themselves, so call before visiting.

How can I verify Catherine Susan Tan's license?

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

How much does Catherine Susan Tan prescribe under Medicare Part D?

In 2024, Catherine Susan Tan had 496 Medicare Part D claims for 176 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.