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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THEORIA MEDICAL
NPI 1164186946
Internal Medicine in Brighton, MI

Active since October 27, 2021
6247 GRAND RIVER RD STE 400, BRIGHTON, MI 48114(810) 215-7177(313) 217-3334 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Theoria Medical NPPES

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

THEORIA MEDICAL (NPI 1164186946), doing business as Theoria Primary Care, is a healthcare organization registered as an internal medicine in Brighton, Michigan and active in the NPI registry since October 2021. The organization lists Justin Di Rezze, Ceo, as its authorized official.

NPPES Registry Identity

NPI1164186946
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameTHEORIA MEDICAL
Location Address6247 GRAND RIVER RD STE 400Brighton, MI 48114-5326
Mailing Address41800 W 11 Mile Rd Ste 109Novi, MI 48375-1818
Phone(810) 215-7177
Fax(313) 217-3334
Organization SubpartNo
Authorized OfficialJustin Di RezzeCeo · (313) 610-8402
Enumeration DateOctober 27, 2021
Last NPPES UpdateJune 26, 2026
NPPES CertifiedJune 26, 2026
✔ NPI 1164186946 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ 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.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
6247 GRAND RIVER RD STE 400, Brighton, MI 48114
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Other Names 1

Doing Business AsTheoria Primary Care

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

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MADISON WALKER
Nurse Practitioner (Family)
6247 GRAND RIVER RD STE 400
BRIGHTON, MI 48114
Livingston County (810) 215-7177

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 Theoria Medical's NPI number?

The NPI number for Theoria Medical is 1164186946. It was assigned to this organization in the NPPES registry on October 27, 2021. The provider is doing business as Theoria Primary Care.

Where is Theoria Medical located?

Theoria Medical is located at 6247 Grand River Rd Ste 400, Brighton, MI 48114. The listed phone number is (810) 215-7177.

What is Theoria Medical's specialty?

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

What insurance does Theoria Medical accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Theoria Medical 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 Theoria Medical was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days 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.