Doctor profile · Federal record

Dr. Gregory McDonald, D.C.

Chiropractor (CMS: Chiropractic) · Neurology Chiropractor · Sports Physician Chiropractor · Orthopedic Chiropractor · Iowa City, IA

  • NPI 1285694521
  • Accepts Medicare
  • 46 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
943 S Gilbert St, Suite 1
Iowa City, IA 522404742
(319) 338-2273
fax (319) 338-1225

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
February 3, 2010
Year of graduation
1980 — 46 yrs since
Specialty taxonomy
111N00000X — NUCC code
State licenses (4)
Iowa #04746 · Iowa #124 · Iowa #3036 · Iowa #2388
Medicaid
IA #1185496

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285694521. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
652
Distinct HCPCS
2
Medicare allowed
$23,554
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 556 152 $38
98940 Chiropractic manipulative treatment, 1-2 spinal regions 96 46 $26

In context: peer comparison

Among 2 peers in Iowa City Chiropractor, average services per provider: 280. This provider delivers 2.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory McDonald's medical specialty?
Dr. Gregory McDonald practices Chiropractor in Iowa City, IA.
Where does Dr. Gregory McDonald practice?
Dr. Gregory McDonald practices at 943 S Gilbert St, Iowa City, IA 522404742. Office phone: 3193382273.
What is Dr. Gregory McDonald's NPI?
Dr. Gregory McDonald's National Provider Identifier (NPI) is 1285694521, issued by NPPES.
Does Dr. Gregory McDonald accept Medicare assignment?
Yes. Dr. Gregory McDonald accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory McDonald 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.