What is Mackenzie Johnson's NPI number?

Mackenzie Johnson's National Provider Identifier (NPI) is 1942992508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mackenzie Johnson's specialty?

Mackenzie Johnson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Mackenzie Johnson located?

Mackenzie Johnson's practice location on file with NPPES is 1670 E Sherman Blvd Ste 100, Muskegon, MI 49444-1863.

What is Mackenzie Johnson's phone number?

The practice phone number listed in the NPPES registry for Mackenzie Johnson is (231) 672-3600.

Does Mackenzie Johnson accept Medicare?

Mackenzie Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Mackenzie Johnson's NPI active?

Yes — Mackenzie Johnson's NPI (1942992508) is active in the NPPES registry as of the last update on 2023-09-26.

IndividualActiveAccepts Medicare

Mackenzie Johnson, PA-C

NPI 1942992508 · Physician Assistant · Muskegon, MI

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Mackenzie Johnson, PA-C is a Physician Assistant provider in Muskegon, MI (NPI 1942992508).

Provider details

NPI number: 1942992508
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Female
Sole proprietor: No
License: 5315236633 (MI)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 5315236633 (MI)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
3 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
58 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)
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	27	$87
Emergency Department Visit With High Level of Medical Decision Making99285	17	$145
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	14	$73

Typical Medicare-allowed amounts for these services range $73–$145 (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 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Prednisone	34	34
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	27	27
Cephalexin	20	20
Azelastine Hcl	17	17
Azithromycin	15	15
Albuterol Sulfatebrand: Albuterol Sulfate Hfa	12	12
Ondansetronbrand: Ondansetron Odt	11

Practice location

1670 E Sherman Blvd Ste 100

Muskegon, MI 49444-1863

Phone: (231) 672-3600

Fax: (231) 672-3601

Street-level locationGet directions

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Mailing address