THOMAS JAMES MERTZ MD
NPI 1659337137
Urology in Roseville, MI

Q: What is Thomas Mertz's NPI number?

The NPI number for Thomas Mertz is 1659337137. It was assigned to this individual provider in the NPPES registry on April 25, 2006.

Q: What is Thomas Mertz's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Mertz was last updated on November 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since April 25, 2006PECOS Enrolled

18325 E 10 MILE RD, SUITE 200, ROSEVILLE, MI 48066(586) 773-6300(586) 773-6266 Get Directions Write a Review

NPPES record last updated: November 5, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Thomas James Mertz Md NPPES

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

THOMAS JAMES MERTZ MD (NPI 1659337137) is an individual urology provider in Roseville, Michigan, licensed in Michigan (4301035307) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659337137

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameTHOMAS JAMES MERTZCredential: MD

Location Address18325 E 10 MILE RD, SUITE 200Roseville, MI 48066-4990

Mailing Address18325 E 10 Mile Rd, Suite 200Roseville, MI 48066-4990 · (586) 773-6300 · Fax (586) 773-6266

Phone(586) 773-6300

Fax(586) 773-6266

Sole ProprietorNo

Enumeration DateApril 25, 2006

Last NPPES UpdateNovember 5, 2018

✔ NPI 1659337137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in MI · 4301035307

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

18325 E 10 MILE RD, Roseville, MI 48066

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Thomas James Mertz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Thomas Mertz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Michigan Healthcare Professionals, P.C.

7.8 mi

Urgent Care

27650 DEQUINDRE RD STE 1200
Warren, MI 48092

Reassigned Medicare billing, Michigan enrollment
Medicare enrollment name: Michigan Healthcare Professionals PC
741 clinicians in this Medicare group

NPI 1568285872 (248) 544-9050

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48066 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$134.28 typical visit price

range $58.04 – $177.36

Typical copayment $33.57 (range $14.51 – $44.34)

Most-billed visit code 99204

Established Patient

$72.38 typical visit price

range $18.32 – $143.49

Typical copayment $18.09 (range $4.58 – $35.87)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Intermittent urinary catheter, with insertion supplies A4353

DME-Orthotic Devices · category DF008N

1 supplier12 claims660 services$6.76 avg. paid by Medicare

Skin barrier; solid, 4 x 4 or equivalent; each A4362

DME-Orthotic Devices · category DF010N

1 supplier12 claims240 services$2.65 avg. paid by Medicare

Ostomy pouch, urinary, with extended wear barrier attached (1 piece), each A4391

DME-Orthotic Devices · category DF010N

1 supplier12 claims140 services$5.93 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 12

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

TODD GARRISON CAMPBELL MD

Urology

18325 E 10 MILE RD, SUITE 200
ROSEVILLE, MI 48066

Macomb County (586) 773-6300

GROSS POINTE UROLOGIC SURGEONS

Non-Pharmacy Dispensing Site

18325 E 10 MILE RD, STE 200
ROSEVILLE, MI 48066

Macomb County (586) 773-6300

EASTLAKE PEDIATRICS PC

Pediatrics

18325 E 10 MILE RD, SUITE 100
ROSEVILLE, MI 48066

Macomb County (586) 776-1010

DR. ANDREW WILLIAM JAMES MOORE DO

Family Medicine

18325 E 10 MILE RD
ROSEVILLE, MI 48066

Macomb County (586) 447-4000

NARAYANAN VIKRAMAN MD

Internal Medicine (Cardiovascular Disease)

18325 E 10 MILE RD, SUITE 400
ROSEVILLE, MI 48066

Macomb County (586) 775-4594

DR. VALERIE ANN EFROS MD

Family Medicine

18325 E 10 MILE RD
ROSEVILLE, MI 48066

Macomb County (586) 447-4000

DR. MELINDA ELIZABETH KARAM M.D.

Pediatrics

18325 E 10 MILE RD, SUITE 100
ROSEVILLE, MI 48066

Macomb County (586) 776-1010

DR. VESNA LUCIYA ROI D.O.

Pediatrics

18325 E 10 MILE RD, STE. 100
ROSEVILLE, MI 48066

Macomb County (586) 776-1010

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 Thomas Mertz's NPI number?

The NPI number for Thomas Mertz is 1659337137. It was assigned to this individual provider in the NPPES registry on April 25, 2006.

Where is Thomas Mertz located?

Thomas Mertz practices at 18325 E 10 Mile Rd Suite 200, Roseville, MI 48066. The listed phone number is (586) 773-6300.

What is Thomas Mertz's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Thomas Mertz enrolled in Medicare?

Yes. Thomas Mertz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Thomas Mertz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Mertz reassigns Medicare benefits to Michigan Healthcare Professionals, P.C. (Warren, MI). The 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 Thomas Mertz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thomas Mertz was last updated on November 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.