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

Dr. Mark D Hahn, OD

Individual provider Optometrist · NPI 1528055969

Dr. Mark D Hahn, OD is an Optometry in Washington, Illinois. Graduated from Illinois College of Optometry at Chicago in 2000, 26 years ago. Practices with J a K Enterprises Inc, a 24-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
26
Trained at
Illinois College of Optometry at Chicago
Licensed in
IL
In the registry since
2005
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

8 Cherry Tree Ctr
Washington, IL 61571-2170
Phone: (309) 444-2277
Fax: (309) 444-2498
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 04600009257 (IL)

Record details

NPI number1528055969
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedSeptember 30, 2005
Last updated in NPPESJanuary 4, 2014
Mailing address8309 N Knoxville Ave, Peoria, IL 61615-2170

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 2000 (26 years in practice)
Group practice J A K Enterprises Inc — 24 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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