NPPES file of Aug 9, 2026

Mai Chu, O.D.

Optometrist · Southborough, MA

Mai Chu, O.D. is an optometrist with a practice address in Southborough, Massachusetts, and NPI 1063643963, issued on Jul 27, 2009. Check the license (Massachusetts OTP4768, as entered in NPPES) with the Massachusetts 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
1063643963
Name
Mai Chu
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
OTP4768 MA
046011521 IL
Self-reported in NPPES; status is on the state search
Practice location
24 Newton St, Southborough, MA 01772
Phone
(084) 603-1505
Enumerated
Jul 27, 2009
Record last updated
Jan 30, 2025
Fax
(508) 460-3061
Medicare enrollment
Enrolled (PECOS I20101007001280); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2009
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 24 Newton St

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

  1. Christine Abraham, NPFamily Nurse Practitioner1215774658
  2. Namra ArifPsychologist1750865077
  3. Elizabeth Askew, O.D.Optometrist1427078120
  4. Iphigenia Balodimos, M.D.Obstetrics & Gynecology Physician1619900685
  5. Matthew Bean, M.D.Internal Medicine Physician1730107244
  6. Sarah Bechta, M.D.Pediatrics Physician1932124427

Verify Mai Chu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license OTP4768
    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
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78% fewer Medicare Part D claims than the average optometrist in 2024

60 Medicare Part D claims for 35 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Mai Chu60
  2. Specialty average277

Most prescribed

  1. Latanoprost20 claims
  2. Dorzolamide-Timolol11 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): 93.1 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 score80.8
  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).

Bills Medicare through one group practice

  1. Reliant Medical Group IncSouthborough, MA

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

Mai Chu among 1,501 optometrist records in Massachusetts

Mai Chu, O.D. is one of 1,501 optometrist records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 56% of them.

  • NPI issued2009 · 56% of these records are older, 41% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2009 · median 2008 among the 933 with a school on file
  • Record last updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 optometrist records list a practice address in Southborough

They are 6 of the 481 NPPES records with a practice address in Southborough, and 1,501 optometrist records in Massachusetts.

The 8 optometrist records with the nearest ZIP codes

  1. Elizabeth Askew, O.D.Southborough, MA 017721427078120
  2. Qian Ru Cheng, ODSouthborough, MA 017721184141327
  3. Paul Levine, O.D.Southborough, MA 017721013977685
  4. Mary Scott, ODSouthboro, MA 017721689609505
  5. Asha Sherring, ODSouthborough, MA 017721275635112
  6. Samuel White, ODSouthborough, MA 017721760166656
  7. Harold Curtin, O.D.Sudbury, MA 017761346335817
  8. Lorraine Labiento Smith, ODSudbury, MA 017761659497782

Common questions

What is Mai Chu, O.D.'s NPI number?

Mai Chu, O.D.'s National Provider Identifier (NPI) is 1063643963, issued on Jul 27, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Mai Chu, O.D. located?

The NPPES record lists a practice address at 24 Newton St, Southborough, MA, 01772. Phone: (084) 603-1505. Providers update this record themselves, so call before visiting.

How can I verify Mai Chu, O.D.'s license?

NPPES lists Massachusetts license number OTP4768, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Mai Chu, O.D. prescribe under Medicare Part D?

In 2024, Mai Chu, O.D. had 60 Medicare Part D claims for 35 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Mai Chu, O.D.'s MIPS final score?

The 2023 MIPS final score is 93.1 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.