Mackenzie Guigar, PA-C
NPI 1528773033 · Physician Assistant · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mackenzie Guigar, PA-C is a Physician Assistant provider in Grand Rapids, MI (NPI 1528773033).
Provider details
- NPI number
- 1528773033
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 5601011585 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
103 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 57 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $54 |
Typical Medicare-allowed amounts for these services range $54–$78 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Prednisone | 37 | 35 |
| Fluticasone Propionate | 27 | 24 |
| Gabapentin | 27 | 18 |
| Furosemide | 26 | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 25 | 16 |
| Atorvastatin Calcium | 21 | 15 |
| Amlodipine Besylate | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-01-18
- Last updated
- 2025-11-10
- Certified
- 2025-11-10
Frequently asked questions
- What is Mackenzie Guigar's NPI number?
- Mackenzie Guigar's National Provider Identifier (NPI) is 1528773033, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenzie Guigar's specialty?
- Mackenzie Guigar is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mackenzie Guigar located?
- Mackenzie Guigar's practice location on file with NPPES is 426 Michigan St Ne, Grand Rapids, MI 49503-5609.
- What is Mackenzie Guigar's phone number?
- The practice phone number listed in the NPPES registry for Mackenzie Guigar is (616) 267-8338.
- Does Mackenzie Guigar accept Medicare?
- Mackenzie Guigar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mackenzie Guigar's NPI active?
- Yes — Mackenzie Guigar's NPI (1528773033) is active in the NPPES registry as of the last update on 2025-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.