NPPES file of Aug 9, 2026

Michael Ayer

Optometrist · Chelmsford, MA

Michael Ayer is an optometrist with a practice address in Chelmsford, Massachusetts, and NPI 1770649584, issued on Dec 28, 2006. Check the license (Massachusetts 3485, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770649584
Name
Michael Ayer
Primary taxonomy
Optometrist 152W00000X
License number
3485 MA
Self-reported in NPPES; status is on the state search
Practice location
228 Billerica RD, Chelmsford, MA 01824
Phone
(978) 250-6170
Enumerated
Dec 28, 2006
Record last updated
Nov 17, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(978) 250-6170
Medicaid ID
0313742 MA
Medicare enrollment
Enrolled (PECOS I20060417000221); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 1989
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 228 Billerica RD

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

  1. Katherine AeschlimanAdvanced Practice Midwife1295755858
  2. Susan Albee, RPHPharmacist1932194560
  3. Sonia Almeida, PAPhysician Assistant1063560357
  4. Alina Bahlavouni, DOPediatrics Physician1508361064
  5. Caroline Bevona, M.D.Dermatology Physician1245225044
  6. Cheryl Brackbill, PA-CPhysician Assistant1073713087

Verify Michael Ayer 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 3485
    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
Find 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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42% fewer Medicare Part D claims than the average optometrist in 2024

161 Medicare Part D claims for 72 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Michael Ayer161
  2. Specialty average277

Most prescribed

  1. Latanoprost36 claims
  2. Cyclosporine32 claims
  3. Erythromycin25 claims
  4. Restasis16 claims
  5. Neomycin-Polymyxin-Dexameth15 claims
  6. Tobramycin-Dexamethasone12 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. Atrius Health IncBoston, MA

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

Michael Ayer among 1,501 optometrist records in Massachusetts

Michael Ayer 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 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 56% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1989 · median 2008 among the 933 with a school on file
  • Record last updated2020 · 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).

13 optometrist records list a practice address in Chelmsford

They are 13 of the 937 NPPES records with a practice address in Chelmsford, and 1,501 optometrist records in Massachusetts.

The 8 optometrist records with the nearest ZIP codes

  1. Stephen Adelstein, ODChelmsford, MA 018241790770980
  2. Florence Bahtiarian, O.D.Chelmsford, MA 018241427080191
  3. Henry Boroyan, ODChelmsford, MA 018241407920424
  4. Bruce Bunker, O.D.Chelmsford, MA 018241750386835
  5. Melissa Donald, O.D.Chelmsford, MA 018241750674958
  6. Hannah Donovan, ODChelmsford, MA 018241750066320
  7. Heidi Frank, ODChelmsford, MA 018241992726251
  8. Vivienne Kong, ODChelmsford, MA 018241366434441

Common questions

What is Michael Ayer's NPI number?

Michael Ayer's National Provider Identifier (NPI) is 1770649584, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Ayer located?

The NPPES record lists a practice address at 228 Billerica RD, Chelmsford, MA, 01824. Phone: (978) 250-6170. Providers update this record themselves, so call before visiting.

How can I verify Michael Ayer's license?

NPPES lists Massachusetts license number 3485, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Michael Ayer prescribe under Medicare Part D?

In 2024, Michael Ayer had 161 Medicare Part D claims for 72 beneficiaries; the average among optometrist prescribers was 277. 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.