Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mark Alan Hassinger, OD

Individual provider Optometrist · NPI 1174691513

Dr. Mark Alan Hassinger, OD is an Optometrist in Parma, Ohio. Practices as a sole proprietor and works from 4 locations. Licensed in Ohio and Wisconsin.

Licensed in
OH, WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

5370 Pearl Rd
Parma, OH 44129-1552
Phone: (440) 842-6996
Fax: (440) 842-9380
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 6879b Southland Dr, Middleburg Heights, OH 44130-3608 — (440) 888-3515
  • 1605 State Route 60 Ste 4, Vermilion, OH 44089-9141 — (440) 595-1080
  • 34302 Euclid Ave Unit 3, Willoughby, OH 44094-3334 — (440) 942-3677

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3611 T476 (OH)
Optometrist Taxonomy 152W00000X · Licence 1872 035 (WI)

Record details

NPI number1174691513
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedDecember 2, 2006
Last updated in NPPESMay 27, 2022
Certification dateMay 27, 2022

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $17 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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