SOUTHEAST INTERNAL MEDICINE PLLC
NPI 1326046418
Internal Medicine in Brownstown, MI
About Southeast Internal Medicine Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUTHEAST INTERNAL MEDICINE PLLC (NPI 1326046418) is a healthcare organization registered as an internal medicine in Brownstown, Michigan and active in the NPI registry since July 2005. The organization holds a CLIA Microscopy certificate valid through November 24, 2027 and lists Margaret Mcquiston, Owner Physician, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Group Practice 1
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)
Southeast Internal Medicine Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Southeast Internal Medicine PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 23D0936610
Southeast Internal Medicine C/O Margaret A Mc Quiston, Do · Brownstown, MIFrequently 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 Southeast Internal Medicine PLLC's NPI number?
The NPI number for Southeast Internal Medicine PLLC is 1326046418. It was assigned to this organization in the NPPES registry on July 12, 2005.
Where is Southeast Internal Medicine PLLC located?
Southeast Internal Medicine PLLC is located at 29159 Helman Blvd, Brownstown, MI 48183. The listed phone number is (734) 671-5100.
What is Southeast Internal Medicine PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Southeast Internal Medicine PLLC enrolled in Medicare?
Yes. Southeast Internal Medicine PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Southeast Internal Medicine PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Southeast Internal Medicine 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Southeast Internal Medicine PLLC hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 23D0936610) is associated with this NPI, valid through November 24, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Southeast Internal Medicine PLLC accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Southeast Internal Medicine 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 Southeast Internal Medicine PLLC was last updated on October 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Southeast Internal Medicine Pllc · NPI 1326046418
Internal Medicine organization in Brownstown, Michigan. Organization record, active in the CMS NPPES registry since July 12, 2005.
## Identity
- **NPI:** 1326046418 (Entity type: Organization)
- **Enumerated:** July 12, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Margaret Mcquiston, OWNER PHYSICIAN
## Practice location
- **Address:** 29159 HELMAN BLVD, Brownstown, MI 48183
- **Phone:** (734) 671-5100 · **Fax:** (734) 671-7664
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians (Internal Medicine) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 16, 2007
- **Other identifiers:** Medicaid 4439990 (MI); Medicaid 4323064 (MI); Medicare PIN 0N33780 (MI)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1326046418) · Data from the CMS NPPES public registry.