Doctor profile · Federal record

Dr. David Thayer, DC

Chiropractor (CMS: Chiropractic) · Edwardsville, IL

  • NPI 1689642951
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
340 S Fillmore St
Edwardsville, IL 620252115
(618) 692-6700
fax (618) 692-9772
Mailing address
Po Box 997
Edwardsville, IL 620250997

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
May 11, 2015
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
Illinois #038009512

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689642951. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,049
Distinct HCPCS
2
Medicare allowed
$35,911
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 714 101 $38
98940 Chiropractic manipulative treatment, 1-2 spinal regions 335 53 $27

In context: peer comparison

Among 5 peers in this city , average services per provider: 312. This provider delivers 3.4× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. David Thayer's medical specialty?
Dr. David Thayer practices Chiropractor in Edwardsville, IL.
Where does Dr. David Thayer practice?
Dr. David Thayer practices at 340 S Fillmore St, Edwardsville, IL 620252115. Office phone: 6186926700.
What is Dr. David Thayer's NPI?
Dr. David Thayer's National Provider Identifier (NPI) is 1689642951, issued by NPPES.
Does Dr. David Thayer accept Medicare assignment?
Yes. Dr. David Thayer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Thayer commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941); Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.