Doctor profile · Federal record

Dr. Michael Messmer, D.O.

Sports Medicine (Family Medicine) Physician (CMS: Family Practice) · Sports Medicine (Family Medicine) Physician · Godfrey, IL

  • NPI 1538300561
  • Accepts Medicare
  • 19 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5213 Godfrey RD Ste 110
Godfrey, IL 620352510
(618) 619-3330
fax (618) 463-7601
Mailing address
660 Mason Ridge Center Dr Ste 300
Saint Louis, MO 631418512

Credentials & registration

NPPES · NUCC
NPI registered
March 2009 — 17 yrs on file
Profile last updated
September 19, 2025
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207QS0010X — NUCC code
State licenses (2)
Illinois #036169796 · Indiana #02004856A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538300561. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$14
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Elite Orthopedics, Llc 1 $14.10

By nature of payment

Food and Beverage
$14

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Messmer's medical specialty?
Dr. Michael Messmer practices Sports Medicine (Family Medicine) Physician in Godfrey, IL.
Where does Dr. Michael Messmer practice?
Dr. Michael Messmer practices at 5213 Godfrey RD Ste 110, Godfrey, IL 620352510. Office phone: 6186193330.
What is Dr. Michael Messmer's NPI?
Dr. Michael Messmer's National Provider Identifier (NPI) is 1538300561, issued by NPPES.
Does Dr. Michael Messmer accept Medicare assignment?
Yes. Dr. Michael Messmer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.