William Carl MacKenzie, PA-C
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 20
- MIPS score, 2024
- 80
- Hospital affiliations
- 1
- Industry payments
- $121
- Practice address
- 601 E Rollins St, Orlando, FL 32803
- Practice phone
- Call (407) 303-1976
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find William MacKenzie'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.
William Carl MacKenzie is a physician assistant in Orlando, Florida
William MacKenzie practices at AdventHealth Orlando in Orlando, Florida, part of AdventHealth.
William MacKenzie's NPI, 1508427337, was assigned on June 24, 2019. William MacKenzie holds Florida license 9112545.
- NPI
- 1508427337NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557793494
- NPI enumeration date
- June 24, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (407) 303-1976
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Carl MacKenzie practices at AdventHealth Orlando in Orlando, Florida
William MacKenzie's primary practice is AdventHealth Orlando, at 601 E Rollins St, Orlando, FL 32803 in Orange County. The practice phone is (407) 303-1976.
- AdventHealth Orlando601 E Rollins St, Orlando, FL 32803 · Orange CountyPhone(407) 303-1976
Source: Dmand AI Affiliation Data
William Carl MacKenzie is affiliated with 3 sites of care and 5 medical groups
William MacKenzie's primary practice is AdventHealth Orlando in Orlando, Florida, part of AdventHealth. The medical group on file is AdventHealth Medical Group. Dmand AI also links William MacKenzie to 4 more medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Carl MacKenzie's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William MacKenzie practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AdventHealth Orlando | Available with a free account |
| +2 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across AdventHealth and 6.2K+ hospitals, with verified contacts in the same login.
William Carl MacKenzie is one of 7,899 physician assistants in Florida
Physician assistant is William MacKenzie's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William MacKenzie is licensed in Florida.
Specialties and state licenses
- Physician assistant, FloridaPrimary
Physician assistants near William MacKenzie
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
William Carl MacKenzie treated 15 Medicare patients in 2024, average age 81
CMS counts 15 Medicare patients who saw William MacKenzie in 2024. The largest group is under 65, with 0 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.04, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts William MacKenzie's median patient age at 69, with 52% women.
William MacKenzie's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among William MacKenzie's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
William MacKenzie's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William Carl MacKenzie wrote 20 Medicare Part D claims in 2024
In 2024, William MacKenzie wrote 20 Medicare Part D claims for 14 patients. 95% of them were for generic drugs.
William MacKenzie's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
William Carl MacKenzie scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for William MacKenzie for performance year 2024, reported as part of a group. William MacKenzie accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists William MacKenzie as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
William MacKenzie's MIPS scores, performance year 2024
- 80of 100Final score
- 61.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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William Carl MacKenzie received $121 in industry payments in 2025
CMS Open Payments shows 2 general payments to William MacKenzie from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $121.
Companies that paid William MacKenzie the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for William Carl MacKenzie'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 William Carl MacKenzie
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Carl MacKenzie's NPI number?
William Carl MacKenzie's NPI number is 1508427337. It was assigned on June 24, 2019, and it is active in the NPI Registry.
What does William Carl MacKenzie specialize in?
William Carl MacKenzie is a physician assistant in Orlando, Florida. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does William Carl MacKenzie practice?
William MacKenzie practices at 601 E Rollins St, Orlando, FL 32803. William MacKenzie's primary practice is AdventHealth Orlando in Orlando, Florida, part of AdventHealth. Dmand AI also links William MacKenzie to 4 medical groups and 2 group practices and clinics.
What is William Carl MacKenzie's office phone number?
The practice phone on file for William MacKenzie is (407) 303-1976.
What is William Carl MacKenzie's medical license number?
William MacKenzie holds Florida license 9112545.
Which hospitals is William Carl MacKenzie affiliated with?
William MacKenzie practices at AdventHealth Orlando in Orlando, Florida.
What medical group is William Carl MacKenzie part of?
William MacKenzie is linked to AdventHealth Medical Group. Dmand AI links William MacKenzie to 4 more medical groups.
Does William Carl MacKenzie accept Medicare?
Yes. CMS lists William MacKenzie as accepting Medicare assignment.
Does William Carl MacKenzie offer telehealth?
Yes. The CMS Doctors and Clinicians file lists William MacKenzie as offering telehealth services.
What is William Carl MacKenzie's MIPS score?
William MacKenzie's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
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How many Medicare patients does William Carl MacKenzie see?
CMS counts 15 Medicare patients who saw William MacKenzie in 2024, with an average age of 81.
Has William Carl MacKenzie received payments from drug or device companies?
CMS Open Payments shows $121 in general payments to William MacKenzie from 1 company from 2025 to 2025. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has William Carl MacKenzie been practicing?
William MacKenzie graduated from medical school in 2019, 7 years ago.
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