Doctor profile · Federal record

Dr. Gregory Macik, OD

Optometrist (CMS: Optometry) · Willmar, MN

  • NPI 1922004514
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
101 Willmar Ave Sw, Affiliated Community Medical Centers
Willmar, MN 56201
(320) 231-5000
fax (220) 231-5067

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
March 28, 2023
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Minnesota #MN2973
Medicaid
MN #650127300

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1922004514. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
938
Distinct HCPCS
7
Medicare allowed
$83,658
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 359 356 $126
99213 Established patient office or other outpatient visit, 20-29 minutes 153 111 $88
92133 Imaging of optic nerve 143 141 $35
92134 Imaging of retina 130 120 $40
92083 Exam of visual field with extended testing 86 84 $62
92004 New patient complete exam of visual system 45 45 $149
99214 Established patient office or other outpatient visit, 30-39 minutes 22 20 $125

In context: peer comparison

Among 4 peers in Willmar Optometrist, average services per provider: 163. This provider delivers 5.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
674
Patients
271
Total drug cost
$53,312
Drug Type Claims Patients Total cost
Latanoprost Generic 312 116 $9,867
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 101 35 $3,060
Timolol Maleate Generic 46 23 $900
Erythromycin (Erythromycin Base) Brand 36 24 $416
Prednisolone Acetate Generic 29 23 $1,712
Lumigan (Bimatoprost) Brand 25 0 $12,290
Brimonidine Tartrate Generic 22 0 $3,705
Tobramycin-Dexamethasone (Tobramycin/Dexamethasone) Brand 21 21 $1,597
Dorzolamide Hcl Generic 20 0 $393
Fluorometholone Generic 18 15 $2,037

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Macik's medical specialty?
Dr. Gregory Macik practices Optometrist in Willmar, MN.
Where does Dr. Gregory Macik practice?
Dr. Gregory Macik practices at 101 Willmar Ave Sw, Willmar, MN 56201. Office phone: 3202315000.
What is Dr. Gregory Macik's NPI?
Dr. Gregory Macik's National Provider Identifier (NPI) is 1922004514, issued by NPPES.
Does Dr. Gregory Macik accept Medicare assignment?
Yes. Dr. Gregory Macik accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Macik commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213); Imaging of optic nerve (HCPCS 92133). Source: CMS Medicare Physician & Other Practitioners file.