NPPES file of Aug 9, 2026

Mary C. Lack, OD

Optometrist · Barberton, OH

Mary C. Lack, OD is an optometrist with a practice address in Barberton, Ohio, and NPI 1801882535, issued on Sep 27, 2005. Check the license (Ohio 4364, as entered in NPPES) with the Ohio 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
1801882535
Name
Mary C. Lack
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
4364 OH
Self-reported in NPPES; status is on the state search
Practice location
31 Conservatory Dr, Barberton, OH 44203
Phone
(330) 745-4404
Enumerated
Sep 27, 2005
Record last updated
Apr 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(330) 753-9162
Medicaid ID
0892155 OH
Medicare enrollment
Enrolled (PECOS I20100408000088); accepts Medicare assignment
Medical or professional school
Ohio State University - College Of Optometry, 1992
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 31 Conservatory Dr

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

  1. Chris Calaway, O.D.Optometrist1639165640
  2. Phillip Kades, O.D.Optometrist1649258500
  3. Marvin Leedy, MDOphthalmology Physician1003893124
  4. Alexander Ryan, ODOptometrist1427841212
  5. Jeffrey Starkey, MDOphthalmology Physician1780661942
  6. Robert Stein, ODOptometrist1710974308

Verify Mary C. Lack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license 4364
    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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2.8 times the Medicare Part D claims of the average optometrist in 2024

768 Medicare Part D claims for 231 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Mary Lack768
  2. Specialty average277

Most prescribed

  1. Latanoprost321 claims
  2. Dorzolamide-Timolol83 claims
  3. Timolol Maleate82 claims
  4. Restasis45 claims
  5. Erythromycin37 claims
  6. Brimonidine Tartrate25 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: $674.81

17 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Lack$674.81
  2. Specialty average$769.99

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. Midwest Eye Consultants Ohio, IncAkron, OH

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

6 optometrist records list a practice address in Barberton

They are 6 of the 462 NPPES records with a practice address in Barberton, and 2,443 optometrist records in Ohio.

Other optometrist records in Ohio

  1. Saif AbdulameerBlue Ash, OH1063368496
  2. Nicole Abrashoff, O.D.Chillicothe, OH1588772933
  3. Thomas Abruzzi, O.D.Warren, OH1588669790
  4. Laird Ackerson, O.D.Hilliard, OH1609880624
  5. Kaitlin Ackinclose, ODCincinnati, OH1669231262
  6. Cheryl Adams, O.D.Cincinnati, OH1356361570
  7. Stephany Aeling, ODChillicothe, OH1689508269
  8. Cindy Ahern, ODSpringfield, OH1710040704
  9. Betsy Ahlquist, O.D.Canfield, OH1578540092
  10. Jeffrey Ahrns, O.D.Sidney, OH1659334704

Common questions

What is Mary C. Lack, OD's NPI number?

Mary C. Lack, OD's National Provider Identifier (NPI) is 1801882535, issued on Sep 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mary C. Lack, OD located?

The NPPES record lists a practice address at 31 Conservatory Dr, Barberton, OH, 44203. Phone: (330) 745-4404. Providers update this record themselves, so call before visiting.

How can I verify Mary C. Lack, OD's license?

NPPES lists Ohio license number 4364, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.

How much does Mary C. Lack, OD prescribe under Medicare Part D?

In 2024, Mary C. Lack, OD had 768 Medicare Part D claims for 231 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.