NPPES file of Aug 9, 2026

Chee-Yeung Chan, MD

Endocrinology, Diabetes & Metabolism Physician · Mount Kisco, NY

Chee-Yeung Chan, MD is an endocrinology, diabetes & metabolism physician with a practice address in Mount Kisco, New York, and NPI 1306899745, issued on May 18, 2006. Check the license (New York 221735, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1306899745
Name
Chee-Yeung Chan
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
221735 NY
Self-reported in NPPES; status is on the state search
Practice location
90 S Bedford RD, Mount Kisco, NY 10549
Phone
(914) 241-1050
Enumerated
May 18, 2006
Record last updated
Dec 26, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(914) 242-1516
Medicaid ID
02394883 NY
Medicare enrollment
Enrolled (PECOS I20050806000177); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 1998
Telehealth
Offers telehealth (CMS)
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 90 S Bedford RD

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

  1. Teresa Alasio, M.D.Anatomic Pathology Physician1396705422
  2. Barbara Alpert, MDInternal Medicine Physician1194775536
  3. Kristine Arbolino, NPNurse Practitioner1164592812
  4. Alphonse Aversa, MDInternal Medicine Physician1053361378
  5. Lisa Bardack, MDInternal Medicine Physician1669421053
  6. Bohdan Batorfalvy, D.P.M.Podiatrist1386066439

Verify Chee-Yeung Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 221735
    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 New York license search

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3.3 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

8,799 Medicare Part D claims for 989 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Chee-Yeung Chan8,799
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium884 claims
  2. Alendronate Sodium618 claims
  3. Glipizide Er600 claims
  4. Metformin Hcl595 claims
  5. Ozempic570 claims
  6. Synthroid411 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.

Bills Medicare through one group practice

  1. Optum Medical Care PCMount Kisco, NY

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

Chee-Yeung Chan among 970 endocrinology, diabetes & metabolism physician records in New York

Chee-Yeung Chan, MD is one of 970 endocrinology, diabetes & metabolism physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 57% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1998 · median 2004 among the 694 with a school on file
  • Record last updated2019 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in New York

There are 970 endocrinology, diabetes & metabolism physician records in New York.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Dara Cohen, M.D.Mount Kisco, NY 105491881881399
  2. Jeffrey Powell, MDMount Kisco, NY 105491962459974
  3. Seoung Park, MDMount Vernon, NY 105501902948193
  4. Harvey Katzeff, M.D.Mahopac, NY 105411346416187
  5. Rita Landman, M.D.Katonah, NY 105361346261898
  6. Eric Rudin, M.D.Katonah, NY 105361801858196
  7. Edward Socolow, M.D.Katonah, NY 105361225099211
  8. Maryam Bojarian, MDHawthorne, NY 105321568924736

Common questions

What is Chee-Yeung Chan, MD's NPI number?

Chee-Yeung Chan, MD's National Provider Identifier (NPI) is 1306899745, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chee-Yeung Chan, MD located?

The NPPES record lists a practice address at 90 S Bedford RD, Mount Kisco, NY, 10549. Phone: (914) 241-1050. Providers update this record themselves, so call before visiting.

How can I verify Chee-Yeung Chan, MD's license?

NPPES lists New York license number 221735, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chee-Yeung Chan, MD prescribe under Medicare Part D?

In 2024, Chee-Yeung Chan, MD had 8,799 Medicare Part D claims for 989 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.