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

Dr. John Mark Deboer, OD

Individual provider Optometrist · NPI 1770566556

Dr. John Mark Deboer, OD is an Optometry in Demotte, Indiana. Graduated from Illinois College of Optometry at Chicago in 1990, 36 years ago. Practices with Aeg Indiana Professional PC, a 31-clinician group and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
36
Trained at
Illinois College of Optometry at Chicago
Licensed in
IL, IN
In the registry since
2005
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

609 N Halleck St
Demotte, IN 46310-9545
Phone: (219) 987-3673
Fax: (219) 987-3905
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 18002449 (IN)
Optometrist Taxonomy 152W00000X · Licence 046-008335 (IL)

Record details

NPI number1770566556
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedNovember 25, 2005
Last updated in NPPESSeptember 2, 2010
Mailing addressPo Box 849, Demotte, IN 46310-0849

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1990 (36 years in practice)
Group practice Aeg Indiana Professional Pc — 31 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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