NPPES file of Aug 9, 2026

Kailenn Tsao, MD

Ophthalmology Physician · Winchester, MA

Kailenn Tsao, MD is an ophthalmology physician with a practice address in Winchester, Massachusetts, and NPI 1912961335, issued on Apr 13, 2006. Check the license (Massachusetts 159572, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1912961335
Name
Kailenn Tsao
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
159572 MA
Self-reported in NPPES; status is on the state search
Practice location
955 Main St, Winchester, MA 01890
Phone
(781) 729-7401
Enumerated
Apr 13, 2006
Record last updated
Sep 27, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(781) 729-5160
Medicaid ID
110061298A MA
Medicare enrollment
Enrolled (PECOS I20060118000900); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1994
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 955 Main St

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

  1. Andrew Abela, DDSOral and Maxillofacial Surgery (Dentist)1154464808
  2. William Antonelli, PTPhysical Therapist1487772281
  3. Christina Bouboulis, FNP-BCFamily Nurse Practitioner1053116970
  4. Patrick Brophy, MDSurgical Oncology Physician1851351159
  5. Vincent Buscemi, PTPhysical Therapist1790803518
  6. Marilyn Capek, M.D.Dermatology Physician1992848469

Verify Kailenn Tsao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 159572
    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 Massachusetts 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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64% fewer Medicare Part D claims than the average ophthalmology physician in 2024

550 Medicare Part D claims for 136 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Kailenn Tsao550
  2. Specialty average1,518

Most prescribed

  1. Latanoprost155 claims
  2. Ketorolac Tromethamine71 claims
  3. Erythromycin67 claims
  4. Timolol Maleate43 claims
  5. Tobramycin-Dexamethasone38 claims
  6. Prednisolone Acetate25 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): 96.2 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 score92.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Kailenn Tsao among 791 ophthalmology physician records in Massachusetts

Kailenn Tsao, MD is one of 791 ophthalmology physician records with a practice address in Massachusetts. 76% 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 23% of them.

  • NPI issued2006 · 23% of these records are older, 48% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1994 · median 2002 among the 518 with a school on file
  • Record last updated2013 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Massachusetts

There are 791 ophthalmology physician records in Massachusetts.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Richard Dallow, MDWinchester, MA 018901083612360
  2. Edward Ryan, MDWinchester, MA 018901083613186
  3. Paul Vernaglia, M.D.Winchester, MA 018901750432365
  4. Connor Baharozian, MDWestford, MA 018861477116275
  5. C. Douglas Evans, MDWakefield, MA 018801982655643
  6. Edward McCarthy Jr., MDWakefield, MA 018801275681132
  7. Kimberly Mooney-McNulty, MDWakefield, MA 018801588616775
  8. Neil Gross, M.D.Lynn, MA 019011457401572

Common questions

What is Kailenn Tsao, MD's NPI number?

Kailenn Tsao, MD's National Provider Identifier (NPI) is 1912961335, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kailenn Tsao, MD located?

The NPPES record lists a practice address at 955 Main St, Winchester, MA, 01890. Phone: (781) 729-7401. Providers update this record themselves, so call before visiting.

How can I verify Kailenn Tsao, MD's license?

NPPES lists Massachusetts license number 159572, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kailenn Tsao, MD prescribe under Medicare Part D?

In 2024, Kailenn Tsao, MD had 550 Medicare Part D claims for 136 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Kailenn Tsao, MD's MIPS final score?

The 2023 MIPS final score is 96.2 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.