Mackenzie Blair Johnson, PA-C
- Medicare patients, 2024
- 385
- Part D claims, 2024
- 127
- Hospital affiliations
- 3
- Industry payments
- $83
- Medical group
- 1
- Practice address
- 1910 Blanding St, Columbia, SC 29201
- Practice phone
- Call (803) 256-4107
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Midlands Orthopaedics and Neurosurgery, PA
Columbia, South Carolina
Find Mackenzie Johnson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mackenzie Blair Johnson is a physician assistant in Columbia, South Carolina
Mackenzie Johnson practices at Midlands Orthopaedics and Neurosurgery, PA in Columbia, South Carolina.
Mackenzie Johnson's NPI, 1386383032, was assigned on June 1, 2022. Mackenzie Johnson graduated from University of South Carolina School of Medicine in 2022. Mackenzie Johnson holds South Carolina license 4443.
- NPI
- 1386383032NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456731256
- NPI enumeration date
- June 1, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 256-4107
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mackenzie Blair Johnson practices at Midlands Orthopaedics and Neurosurgery, PA in Columbia, South Carolina
Mackenzie Johnson's primary practice is Midlands Orthopaedics and Neurosurgery, PA, at 1910 Blanding St, Columbia, SC 29201 in Richland County. The practice phone is (803) 256-4107.
- Midlands Orthopaedics and Neurosurgery, PA1910 Blanding St, Columbia, SC 29201 · Richland CountyPhone(803) 256-4107
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mackenzie Blair Johnson is affiliated with 7 sites of care and 1 medical group
Mackenzie Johnson's primary practice is Midlands Orthopaedics and Neurosurgery, PA in Columbia, South Carolina. Mackenzie Johnson is also affiliated with MUSC Health Columbia Medical Center Downtown. The medical group on file is Midlands Orthopaedics & Neurosurgery. Dmand AI also links Mackenzie Johnson to 2 more hospitals, 2 home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mackenzie Blair Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mackenzie Johnson practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Midlands Orthopaedics and Neurosurgery, PA | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Mackenzie Blair Johnson is one of 1,888 physician assistants in South Carolina
Physician assistant is Mackenzie Johnson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Mackenzie Johnson is licensed in South Carolina.
Specialties and state licenses
- Physician assistant, South CarolinaPrimary
Physician assistants near Mackenzie Johnson
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mackenzie Blair Johnson treated 385 Medicare patients in 2024, average age 74
CMS counts 385 Medicare patients who saw Mackenzie Johnson in 2024. The largest group is 65 to 74, with 204 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mackenzie Johnson's median patient age at 66, with 69% women.
Mackenzie Johnson's Medicare patients by age, 2024
Mackenzie Johnson's Medicare patients by sex, 2024
- Women24564%
- Men14036%
Chronic conditions among Mackenzie Johnson's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes35%
- Ischemic heart disease32%
- Anxiety28%
- Mood disorders28%
- Chronic kidney disease26%
Share of Medicare patients with each condition. A patient can have several.
Mackenzie Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mackenzie Blair Johnson wrote 127 Medicare Part D claims in 2024
In 2024, Mackenzie Johnson wrote 127 Medicare Part D claims for 76 patients. 93% of them were for generic drugs.
Mackenzie Johnson's Part D claims by kind of drug, 2024
- Generic118 claims93%
- Brand-name and other9 claims7%
Drug classes CMS tracks in Mackenzie Johnson's Part D claims, 2024
- Opioids27%34 of 127 claims
- Antibiotics28%36 of 127 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mackenzie Blair Johnson takes part in Medicare
Mackenzie Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Mackenzie Blair Johnson received $83 in industry payments in 2025
CMS Open Payments shows 2 general payments to Mackenzie Johnson from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Peerless Surgical Inc. paid the most, $47.
Companies that paid Mackenzie Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mackenzie Blair Johnson graduated from University of South Carolina School of Medicine
Mackenzie Johnson graduated from University of South Carolina School of Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mackenzie Blair Johnson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mackenzie Blair Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mackenzie Blair Johnson's NPI number?
Mackenzie Blair Johnson's NPI number is 1386383032. It was assigned on June 1, 2022, and it is active in the NPI Registry.
What does Mackenzie Blair Johnson specialize in?
Mackenzie Blair Johnson is a physician assistant in Columbia, South Carolina. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mackenzie Blair Johnson practice?
Mackenzie Johnson practices at 1910 Blanding St, Columbia, SC 29201. Mackenzie Johnson's primary practice is Midlands Orthopaedics and Neurosurgery, PA in Columbia, South Carolina. Dmand AI also links Mackenzie Johnson to 2 hospitals, 2 home health agencies and 1 group practice or clinic.
What is Mackenzie Blair Johnson's office phone number?
The practice phone on file for Mackenzie Johnson is (803) 256-4107.
What is Mackenzie Blair Johnson's medical license number?
Mackenzie Johnson holds South Carolina license 4443.
Which hospitals is Mackenzie Blair Johnson affiliated with?
Mackenzie Johnson is affiliated with MUSC Health Columbia Medical Center Downtown. Dmand AI links Mackenzie Johnson to 2 more hospitals.
What medical group is Mackenzie Blair Johnson part of?
Mackenzie Johnson is linked to Midlands Orthopaedics & Neurosurgery.
Does Mackenzie Blair Johnson accept Medicare?
Yes. CMS lists Mackenzie Johnson as accepting Medicare assignment.
How many Medicare patients does Mackenzie Blair Johnson see?
CMS counts 385 Medicare patients who saw Mackenzie Johnson in 2024, with an average age of 74.
Where did Mackenzie Blair Johnson go to medical school?
Mackenzie Johnson graduated from University of South Carolina School of Medicine in 2022.
Has Mackenzie Blair Johnson received payments from drug or device companies?
CMS Open Payments shows $83 in general payments to Mackenzie Johnson from 2 companies from 2025 to 2025. The largest total came from Peerless Surgical Inc.
How long has Mackenzie Blair Johnson been practicing?
Mackenzie Johnson graduated from medical school in 2022, 4 years ago.
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