Physician Profile
James C Mackenzie, MD
Unclaimed ProfileAbout Dr. Mackenzie
James C Mackenzie, MD practices internal medicine in Troy, MI. James is a 1971 graduate of Northwestern University Feinberg Medical School. According to Medicare claims data, James cared for 563 Medicare patients across 756 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (248) 288-4000
- Email not available
Practice Locations
1380 COOLIDGE HWY SUITE 100
Troy, MI 48084
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
756 services · 563 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
287 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
155 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
147 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
83 |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
43 |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
41 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other internal medicines in Troy 8
Same specialty, same city.
Trained at Northwestern University Feinberg Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1971 at Northwestern University Feinberg Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Mackenzie?
Dr. Mackenzie is an internal medicine in Troy, MI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
What is Dr. Mackenzie's address?
Dr. Mackenzie is listed at 1380 COOLIDGE HWY SUITE 100, Troy, MI 48084. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Mackenzie?
The number on file is (248) 288-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mackenzie's NPI number?
Dr. Mackenzie's National Provider Identifier is 1548251168. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mackenzie train?
Dr. Mackenzie attended Northwestern University Feinberg Medical School, graduating in 1971. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mackenzie been practicing?
Dr. Mackenzie has 55 years experience. Calculated from a graduation year of 1971, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Mackenzie perform?
According to Medicare billing data, Dr. Mackenzie the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mackenzie confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mackenzie. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.