Dr. Colin B. MacKenzie, MD
- Part D claims, 2024
- 39
- Hospital affiliations
- 2
- Industry payments
- $1,226
- Medical group
- 1
- State license
- 1
- Practice address
- 4001 J St, Sacramento, CA 95819
- Practice phone
- Call (916) 453-4453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. MacKenzie's professional email, personal email and mobile number
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Dr. Colin B. MacKenzie is an internist in Sacramento, California
Dr. MacKenzie practices at Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health.
Dr. MacKenzie's NPI, 1992476683, was assigned on September 23, 2021. Dr. MacKenzie holds Utah license 13510375-1205.
- NPI
- 1992476683NPI Registry (opens in a new tab)
- NPI enumeration date
- September 23, 2021
- NPI status
- Active
- Practice phone
- (916) 453-4453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Colin B. MacKenzie practices at Dignity Health - Mercy General Hospital in Sacramento, California
Dr. MacKenzie's primary practice is Dignity Health - Mercy General Hospital, at 4001 J St, Sacramento, CA 95819 in Sacramento County. The practice phone is (916) 453-4453.
- Dignity Health - Mercy General Hospital4001 J St, Sacramento, CA 95819 · Sacramento CountyPhone(916) 453-4453
Source: Dmand AI Affiliation Data
Dr. Colin B. MacKenzie is affiliated with 2 sites of care and 1 medical group
Dr. MacKenzie's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. MacKenzie to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Colin B. MacKenzie's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. MacKenzie practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy General Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Colin B. MacKenzie is one of 16,751 internists in California
Internal medicine is Dr. MacKenzie's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. MacKenzie is licensed in Utah.
Specialties and state licenses
- Internal medicine, UtahPrimary
Internists near Dr. MacKenzie
Counts of internists 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
Dr. Colin B. MacKenzie's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. MacKenzie's median patient age at 69, with 50% women.
Dr. 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
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Colin B. MacKenzie wrote 39 Medicare Part D claims in 2024
In 2024, Dr. MacKenzie wrote 39 Medicare Part D claims. 74% of them were for generic drugs.
Dr. MacKenzie's Part D claims by kind of drug, 2024
- Generic29 claims74%
- Brand-name and other10 claims26%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Colin B. MacKenzie received $1,226 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. MacKenzie from 3 drug and device companies from 2024 to 2025. Travel and lodging make up the largest share, 56% of the total. Stryker Corporation paid the most, $1,140.
General payments to Dr. MacKenzie by program year, 2024 to 2025
General payments to Dr. MacKenzie by kind, 2024 to 2025
- Travel and lodging$69056%
- Grants$45037%
- Food and beverage$867%
Companies that paid Dr. MacKenzie the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Colin B. 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Dr. Colin B. 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 Dr. Colin B. MacKenzie's NPI number?
Dr. Colin B. MacKenzie's NPI number is 1992476683. It was assigned on September 23, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Colin B. MacKenzie?
Dr. Colin B. MacKenzie is an internist in Sacramento, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Colin B. MacKenzie practice?
Dr. MacKenzie practices at 4001 J St, Sacramento, CA 95819. Dr. MacKenzie's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dmand AI also links Dr. MacKenzie to 1 hospital.
What is Dr. Colin B. MacKenzie's office phone number?
The practice phone on file for Dr. MacKenzie is (916) 453-4453.
What is Dr. Colin B. MacKenzie's medical license number?
Dr. MacKenzie holds Utah license 13510375-1205.
Which hospitals is Dr. Colin B. MacKenzie affiliated with?
Dr. MacKenzie practices at Dignity Health - Mercy General Hospital in Sacramento, California. Dmand AI links Dr. MacKenzie to 1 more hospital.
What medical group is Dr. Colin B. MacKenzie part of?
Dr. MacKenzie is linked to UC Davis Medical Group.
Has Dr. Colin B. MacKenzie received payments from drug or device companies?
CMS Open Payments shows $1,226 in general payments to Dr. MacKenzie from 3 companies from 2024 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Colin B. MacKenzie been practicing?
Dr. MacKenzie's NPI was assigned in 2021.
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