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UNASOURCE COMPREHENSIVE WEIGHT LOSS CENTER
NPI 1356450589
Internal Medicine in Troy, MI

Active since August 30, 2006CLIA 23D1070198 · Waiver
4600 INVESTMENT DR, STE# 300, TROY, MI 48098(248) 267-5000(248) 267-5001 Get Directions Write a Review

NPPES record last updated: February 12, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Unasource Comprehensive Weight Loss Center NPPES

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

UNASOURCE COMPREHENSIVE WEIGHT LOSS CENTER (NPI 1356450589) is a healthcare organization registered as an internal medicine in Troy, Michigan and active in the NPI registry since August 2006. The organization holds a CLIA Waiver certificate valid through June 21, 2027 and lists James G Henderson, President, as its authorized official.

NPPES Registry Identity

NPI1356450589
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameTROY INTERNAL MEDICINE, PC
Location Address4600 INVESTMENT DR, STE# 300Troy, MI 48098-6365
Mailing Address4600 Investment Dr, Ste# 300Troy, MI 48098-6365 · (248) 267-5000 · Fax (248) 267-5001
Phone(248) 267-5000
Fax(248) 267-5001
Organization SubpartNo
Authorized OfficialJames G HendersonPresident · (248) 267-5000
Enumeration DateAugust 30, 2006
Last NPPES UpdateFebruary 12, 2008
✔ NPI 1356450589 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.
4600 INVESTMENT DR, Troy, MI 48098
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Other Names 1

Other NameUnasource Comprehensive Weight Loss Center

Other Identifiers 1

Medicare ID-Type Unspecified0M07130

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 ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Unasource Comprehensive Weight Loss Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

78

Medicare enrollment records show 78 clinicians reassign Medicare billing to Unasource Comprehensive Weight Loss Center, which bills Medicare for the services they deliver. Of these, 22 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 3

Diagnostic Radiology75
Interventional Radiology2
Cardiovascular Disease (Cardiology)1

Nearest to this location (20)

See all 78
Zaid Mahdi, M.D.
Diagnostic Radiology
NPI 1376995225
508 FOX HILLS DR N APARTMENT 1
Bloomfield Hills, MI 48304
(313) 414-3392
✔ PECOS✔ Accepts Medicare4.1 mi
Brian Berger
Diagnostic Radiology
NPI 1114996782
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
David Blinkhorn
Diagnostic Radiology
NPI 1922077395
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
Marc Flemming, MD
Diagnostic Radiology
NPI 1639139835
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5000
✔ PECOS✔ Accepts Medicare4.4 mi
Paul Gryzenia, MD
Interventional Radiology
NPI 1255325262
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5000
✔ PECOS✔ Accepts Medicare4.4 mi
Tarun Gupta, MD
Diagnostic Radiology
NPI 1124034624
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5000
✔ PECOS✔ Accepts Medicare4.4 mi
Paul Harris
Diagnostic Radiology
NPI 1730149527
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS4.4 mi
Bakul Lather, M.D.
Diagnostic Radiology
NPI 1992019814
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
Stephan Loginsky
Diagnostic Radiology
NPI 1710947072
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
Margaret Pierce
Diagnostic Radiology
NPI 1508827619
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
Rohit Singla, MD
Diagnostic Radiology
NPI 1821189382
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5000
✔ PECOS✔ Accepts Medicare4.4 mi
Gregg Warren, DO
Diagnostic Radiology
NPI 1184651366
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
Robert Weinfeld, MD
Diagnostic Radiology
NPI 1699735696
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.4 mi
Steven Schultz, MD
Diagnostic Radiology
NPI 1699736975
44201 DEQUINDRE RD
Troy, MI 48085
(248) 964-5190
✔ PECOS4.4 mi
Jason Crile, M.D.
Cardiovascular Disease (Cardiology)
NPI 1114167988
1701 SOUTH BLVD E STE 390
Rochester Hills, MI 48307
(248) 293-0055
✔ PECOS✔ Accepts Medicare4.5 mi
Magdy Nassif
Diagnostic Radiology
NPI 1184685372
44250 DEQUINDRE RD
Sterling Heights, MI 48314
(248) 964-5190
✔ PECOS✔ Accepts Medicare4.6 mi
Martin Gross
Diagnostic Radiology
NPI 1497715585
3601 W 13 MILE RD
Royal Oak, MI 48073
(248) 898-5000
✔ PECOS✔ Accepts Medicare5.3 mi
David Lin, MD
Diagnostic Radiology
NPI 1265850739
3601 W 13 MILE RD
Royal Oak, MI 48073
(248) 898-6509
✔ PECOS✔ Accepts Medicare5.3 mi
Kevin Ohora
Diagnostic Radiology
NPI 1376504571
3601 W 13 MILE RD
Royal Oak, MI 48073
(248) 898-9175
✔ PECOS✔ Accepts Medicare5.3 mi
John Ebersole, MD
Interventional Radiology
NPI 1023185287
3601 W 13 MILE RD
Royal Oak, MI 48073
(248) 898-6064
✔ PECOS✔ Accepts Medicare5.3 mi
See all 78 clinicians

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 of Waiver 23D1070198

Troy Internal Medicine Research · Troy, MI
Active · expires Jun 21, 2027
CLIA Number23D1070198
Laboratory TypeOther
Certificate Effective DateJune 22, 2025
Certificate Expiration DateJune 21, 2027
Laboratory DirectorNeil J. Fraser
Laboratory Phone(248) 312-0025
Laboratory LocationTroy Internal Medicine Research4967 Crooks Road Suite 130, Troy, MI 48098
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

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 Troy Internal Medicine, PC's NPI number?

The NPI number for Troy Internal Medicine, PC is 1356450589. It was assigned to this organization in the NPPES registry on August 30, 2006. The provider is also known as Unasource Comprehensive Weight Loss Center.

Where is Troy Internal Medicine, PC located?

Troy Internal Medicine, PC is located at 4600 Investment Dr Ste# 300, Troy, MI 48098. The listed phone number is (248) 267-5000.

What is Troy Internal Medicine, PC's specialty?

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

Is Troy Internal Medicine, PC enrolled in Medicare?

Yes. Troy Internal Medicine, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Troy Internal Medicine, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 78 clinicians in 3 Medicare specialties reassign their Medicare billing to Troy Internal Medicine, PC. 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 Diagnostic Radiology (75), Interventional Radiology (2) and Cardiovascular Disease (Cardiology) (1). Of these, 22 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Troy Internal Medicine, PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 23D1070198) is associated with this NPI, valid through June 21, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Troy Internal Medicine, PC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Troy Internal Medicine, PC 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 Troy Internal Medicine, PC was last updated on February 12, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.