MICHIGAN MEDICAL DOCTORS PLLC
NPI 1447302971
Internal Medicine in Troy, MI

Active since January 17, 2007
1380 COOLIDGE HWY, SUITE 100, TROY, MI 48084(248) 288-4000(248) 288-3900 Get Directions Write a Review

NPPES record last updated: August 23, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michigan Medical Doctors Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHIGAN MEDICAL DOCTORS PLLC (NPI 1447302971) is a healthcare organization registered as an internal medicine in Troy, Michigan and active in the NPI registry since January 2007. The organization lists James C Mackenzie, Owner, as its authorized official.

NPPES Registry Identity

NPI1447302971
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMICHIGAN MEDICAL DOCTORS PLLC
Location Address1380 COOLIDGE HWY, SUITE 100Troy, MI 48084-7018
Mailing Address1380 Coolidge Hwy, Suite 100Troy, MI 48084-7018 · (248) 288-4000 · Fax (248) 288-3900
Fax(248) 288-3900
Organization SubpartNo
Authorized OfficialJames C MackenzieOwner · (248) 288-4000
Enumeration DateJanuary 17, 2007
Last NPPES UpdateAugust 23, 2013
✔ NPI 1447302971 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1380 COOLIDGE HWY, Troy, MI 48084

Other Identifiers 1

Medicare ID-Type Unspecified0N99970MI · Medicare

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michigan Medical Doctors Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Michigan Medical Doctors PLLC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 7 within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Internal Medicine
NPI 1790187748
1380 COOLIDGE HWY STE 150
Troy, MI 48084
(248) 817-5264
✔ PECOS✔ Accepts MedicareSame address
Endocrinology
NPI 1598053415
1380 COOLIDGE HWY STE 220
Troy, MI 48084
(248) 825-3764
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1548251168
1380 COOLIDGE HWY SUITE 100
Troy, MI 48084
(248) 288-4000
✔ PECOS✔ Accepts MedicareSame address
Registered Dietitian or Nutrition Professional
NPI 1386872299
1380 COOLIDGE HWY STE 200
Troy, MI 48084
(248) 545-2131
✔ Accepts MedicareSame address
Internal Medicine
NPI 1124137203
1777 AXTELL DR #109
Troy, MI 48084
(248) 649-2626
✔ PECOS0.3 mi
Family Practice
NPI 1053578542
2405 E FOURTEEN MILE RD
Sterling Heights, MI 48310
(586) 264-1800
✔ PECOS✔ Accepts Medicare5.4 mi
Neurology
NPI 1053302612
44199 DEQUINDRE RD STE 418
Troy, MI 48085
(248) 828-8520
✔ PECOS✔ Accepts Medicare6.9 mi
Internal Medicine
NPI 1831394873
46857 GARFIELD RD
Macomb, MI 48044
(586) 532-8500
✔ PECOS✔ Accepts Medicare13 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michigan Medical Doctors PLLC's NPI number?

The NPI number for Michigan Medical Doctors PLLC is 1447302971. It was assigned to this organization in the NPPES registry on January 17, 2007.

Where is Michigan Medical Doctors PLLC located?

Michigan Medical Doctors PLLC is located at 1380 Coolidge Hwy Suite 100, Troy, MI 48084. The listed phone number is (248) 288-4000.

What is Michigan Medical Doctors PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michigan Medical Doctors PLLC enrolled in Medicare?

Yes. Michigan Medical Doctors PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Michigan Medical Doctors PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 5 Medicare specialties reassign their Medicare billing to Michigan Medical Doctors PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (4), Endocrinology (1) and Family Practice (1). Of these, 4 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Michigan Medical Doctors PLLC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Michigan Medical Doctors PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michigan Medical Doctors PLLC was last updated on August 23, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.