Gregory Macik, OD
NPI 1922004514 · Optometrist · Willmar, MN
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Macik, OD is a Optometrist provider in Willmar, MN (NPI 1922004514).
Provider details
- NPI number
- 1922004514
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- MN2973 (MN)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,260 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 482 | $125 |
| Imaging of Optic Nerve92133 | 235 | $35 |
| Imaging of Retina92134 | 164 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 158 | $88 |
| Exam of Visual Field With Extended Testing92083 | 120 | $63 |
| New Patient Complete Exam of Visual System92004 | 73 | $147 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 552 | 190 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 186 | 68 |
| Timolol Maleate | 98 | 43 |
| Bimatoprostbrand: Lumigan | 50 | 17 |
| Prednisolone Acetate | 34 | 18 |
| Dorzolamide Hcl | 31 | 13 |
| Fluorometholone | 21 | 18 |
| Neomycin/Polymyxin B/Dexametha |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-28
- Last updated
- 2023-03-28
- Certified
- 2023-03-28
Frequently asked questions
- What is Gregory Macik's NPI number?
- Gregory Macik's National Provider Identifier (NPI) is 1922004514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Macik's specialty?
- Gregory Macik is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Macik located?
- Gregory Macik's practice location on file with NPPES is 101 Willmar Ave Sw, Willmar, MN 56201.
- What is Gregory Macik's phone number?
- The practice phone number listed in the NPPES registry for Gregory Macik is (320) 231-5000.
- Does Gregory Macik accept Medicare?
- Gregory Macik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Macik's NPI active?
- Yes — Gregory Macik's NPI (1922004514) is active in the NPPES registry as of the last update on 2023-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.