Registry data as of Aug 27, 2026

Mark Canfield, O.D.

Optometrist · Greenville, MI

Mark Canfield, O.D. is an optometrist with a practice address in Greenville, Michigan, and NPI 1336282623, issued on Feb 15, 2007. Check the license (Michigan 4901003564, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1336282623
Name
Mark Canfield
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
4901003564 MI
Self-reported in NPPES; status is on the state search
Practice location
322 S Lafayette St, Greenville, MI 48838
Phone
(616) 754-4696
Enumerated
Feb 15, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 322 S Lafayette St

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

  1. Matthew Alderink, ODOptometrist1770404840

Verify Mark Canfield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4901003564
    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 Michigan 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.

18% more Medicare Part D claims than the average optometrist in 2024

330 Medicare Part D claims for 99 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Mark Canfield330
  2. Specialty average279

Most prescribed

  1. Latanoprost137 claims
  2. Erythromycin43 claims
  3. Timolol Maleate34 claims
  4. Tobramycin-Dexamethasone29 claims
  5. Cyclosporine16 claims
  6. Restasis16 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.

6 optometrist records list a Greenville practice address

They are 6 of the 363 NPPES records with a Greenville practice address, and 1,935 optometrist records in Michigan.

Other optometrist records in Michigan

  1. Brooke Abbaya, ODTroy, MI1962062968
  2. Richard Abbott, O.D.Traverse City, MI1295721520
  3. John Abdella, O.D.Flint, MI1487634929
  4. Hussein AbdulameerAnn Arbor, MI1386340032
  5. Shaina AbrahamAnn Arbor, MI1649845389
  6. Suzanne Acanne, O.D.Detroit, MI1093804692
  7. Thomas Adamczak, O.D.Whitehall, MI1083614911
  8. Brittany Adams, O.D.Southfield, MI1659754505
  9. Daniel Adams, ODImlay City, MI1194861310
  10. James Adams, O.D.Portage, MI1336137397

Common questions

What is Mark Canfield, O.D.'s NPI number?

Mark Canfield, O.D.'s National Provider Identifier (NPI) is 1336282623, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark Canfield, O.D. located?

The NPPES record lists a practice address at 322 S Lafayette St, Greenville, MI, 48838. Phone: (616) 754-4696. Providers update this record themselves, so call before visiting.

How can I verify Mark Canfield, O.D.'s license?

NPPES lists Michigan license number 4901003564, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Canfield, O.D. prescribe under Medicare Part D?

In 2024, Mark Canfield, O.D. had 330 Medicare Part D claims for 99 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.