Doctor profile · Federal record

Dr. Matthew Kolkman, DDS

Dentist · Grabill, IN

  • NPI 1255693396
  • 14 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
13307 Witmer RD
Grabill, IN 467419636
(260) 627-1121
Mailing address
10321 Garman RD
Leo, IN 467659798

Credentials & registration

NPPES · NUCC
NPI registered
June 2012 — 14 yrs on file
Specialty taxonomy
122300000X — NUCC code
State license (1)
Indiana #12011830A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255693396. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$24
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Solventum Corporation 1 $13.45
Align Technology, INC. 1 $11.03

By nature of payment

Food and Beverage
$24

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
41
Patients
33
Total drug cost
$137
Drug Type Claims Patients Total cost
Amoxicillin Generic 30 22 $84
Azithromycin Generic 11 11 $53

Frequently asked questions

Auto-generated from federal data
What is Dr. Matthew Kolkman's medical specialty?
Dr. Matthew Kolkman practices Dentist in Grabill, IN.
Where does Dr. Matthew Kolkman practice?
Dr. Matthew Kolkman practices at 13307 Witmer RD, Grabill, IN 467419636. Office phone: 2606271121.
What is Dr. Matthew Kolkman's NPI?
Dr. Matthew Kolkman's National Provider Identifier (NPI) is 1255693396, issued by NPPES.