Thomas James Mertz, MD
Urology Physician · Roseville, MI
Thomas James Mertz, MD is a urology physician with a practice address in Roseville, Michigan, and NPI 1659337137, issued on Apr 25, 2006. Check the license (Michigan 4301035307, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Thomas James Mertz
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 4301035307 MI
Self-reported in NPPES; status is on the state search - Practice location
- 18325 E 10 Mile RD, Roseville, MI 48066
- Phone
- (586) 773-6300
- Enumerated
- Apr 25, 2006
- Record last updated
- Nov 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (586) 773-6266
- Entity
- Type 1 · individual
Also registered at 18325 E 10 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Todd Campbell, MDUrology Physician1184680662
- Valerie Efros, MDFamily Medicine Physician1336631282
- Melinda Karam, M.D.Pediatrics Physician1558300699
- Norma Lowery, NPNurse Practitioner1740246156
- Andrew Moore, DOFamily Medicine Physician1275224065
- Vesna Roi, D.O.Pediatrics Physician1588601975
Verify Thomas James Mertz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301035307Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average urology physician in 2024
15 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $159.92
2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Urology Physician providers in Michigan
There are 446 urology physician records in Michigan.
Other urology physician records in Michigan
- Mazen Abdelhady, M.D.Detroit, MI1669771507
- Firas Abdollah, M.D.Detroit, MI1932591898
- John Addington, PA-CRochester Hills, MI1306942784
- Anthony Adeleye, MDWarren, MI1275552655
- Muzammil Ahmed, M.D.Westland, MI1689649873
- Abdulrahman AlruwailyAnn Arbor, MI1154787604
- Nitin Ambani, M.D.Ann Arbor, MI1417966060
- Sapan Ambani, M.D.Ann Arbor, MI1063640175
- Barrett Anderson, D.O.Detroit, MI1972735587
- John Anema, M.D.Grand Rapids, MI1053411215
Common questions
What is Thomas James Mertz, MD's NPI number?
Thomas James Mertz, MD's National Provider Identifier (NPI) is 1659337137, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas James Mertz, MD located?
The NPPES record lists a practice address at 18325 E 10 Mile RD, Roseville, MI, 48066. Phone: (586) 773-6300. Providers update this record themselves, so call before visiting.
How can I verify Thomas James Mertz, MD's license?
NPPES lists Michigan license number 4301035307, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas James Mertz, MD prescribe under Medicare Part D?
In 2024, Thomas James Mertz, MD had 15 Medicare Part D claims; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.