Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. David Ryan Harkema, OD

Individual provider Optometrist · NPI 1457310203

Dr. David Ryan Harkema, OD is an Optometry in Sparta, Michigan. Graduated from Ferris State College - College of Optometry in 1992, 34 years ago. Accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
34
Trained at
Ferris State College - College of Optometry
Licensed in
MI
In the registry since
2006
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Practice location Address checks out

38 N Union St
Sparta, MI 49345-1138
Phone: (616) 887-8811
Fax: (616) 887-8789
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 49010003629 (MI)

Record details

NPI number1457310203
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedMarch 21, 2006
Last updated in NPPESMay 31, 2023
Certification dateMay 31, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolFERRIS STATE COLLEGE - COLLEGE OF OPTOMETRY
Graduated 1992 (34 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Sparta