Doctor profile · Federal record

Dr. Steven Mattes, D.C.

Sports Physician Chiropractor (CMS: Chiropractic) · Newton, IA

  • NPI 1982681375
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
119 1St Ave W
Newton, IA 502083721
(641) 787-0311
fax (641) 792-6396

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
September 26, 2011
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
111NS0005X — NUCC code
State license (1)
Iowa #AO6227
Medicaid
IA #1193185

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1982681375. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
974
Distinct HCPCS
2
Medicare allowed
$32,255
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 592 98 $38
98940 Chiropractic manipulative treatment, 1-2 spinal regions 382 94 $26

In context: peer comparison

Among 1 peers in Newton Sports Physician Chiropractor, average services per provider: 487. This provider delivers 2.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Steven Mattes's medical specialty?
Dr. Steven Mattes practices Sports Physician Chiropractor in Newton, IA.
Where does Dr. Steven Mattes practice?
Dr. Steven Mattes practices at 119 1St Ave W, Newton, IA 502083721. Office phone: 6417870311.
What is Dr. Steven Mattes's NPI?
Dr. Steven Mattes's National Provider Identifier (NPI) is 1982681375, issued by NPPES.
Does Dr. Steven Mattes accept Medicare assignment?
Yes. Dr. Steven Mattes accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Steven Mattes 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.