Dr. Thomas James Mertz, MD
- Medicare services, 2021
- 1,268
- Part D claims, 2024
- 15
- Industry payments
- $2,990
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 18325 E 10 Mile Rd Suite 200 Suite 200, Roseville, MI 48066-4990
- Practice phone
- Call (586) 773-6300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd)
Surgical practice · Roseville, Michigan
Find Dr. Mertz's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thomas James Mertz is a urologist in Grosse Pointe, Michigan
Dr. Mertz practices at Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd) in Roseville, Michigan.
Dr. Mertz's NPI, 1659337137, was assigned on April 25, 2006. Dr. Mertz graduated from Wayne State University School of Medicine in 1974. Dr. Mertz holds Michigan license 4301035307.
- NPI
- 1659337137NPI Registry (opens in a new tab)
- NPI enumeration date
- April 25, 2006
- NPI status
- Active
- Practice phone
- (586) 773-6300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas James Mertz practices in Roseville and Grosse Pointe
Dr. Mertz's primary practice is Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd), at 18325 E 10 Mile Rd Suite 200 Suite 200, Roseville, MI 48066-4990. The practice phone is (586) 773-6300. The NPI Registry lists Dr. Mertz's practice address as 468 Cadieux Rd, Grosse Pointe, MI 48230.
- Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd)Primary18325 E 10 Mile Rd Suite 200 Suite 200, Roseville, MI 48066-4990Phone(586) 773-6300
- NPI Registry address468 Cadieux Rd, Grosse Pointe, MI 48230 · Wayne CountyPhone(586) 773-6300
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Thomas James Mertz is affiliated with 1 site of care and 1 medical group
Dr. Mertz's primary practice is Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd) in Roseville, Michigan. The medical group on file is Michigan Healthcare Professionals, P.C.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Thomas James Mertz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mertz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd) | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Thomas James Mertz is one of 389 urologists in Michigan
Urology is Dr. Mertz's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Mertz is licensed in Michigan.
Specialties and state licenses
- Urology, MichiganPrimary
Urologists near Dr. Mertz
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas James Mertz billed Medicare for 1,268 services in 2021
CMS data shows 1,268 Medicare services from Dr. Mertz across 21 procedure codes in 2021. Medicare paid $63,075 for them.
Dr. Mertz's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 6932021: 49628%
- Lab and pathology
- 2020: 4082021: 3778%
- Surgery
- 2020: 3502021: 30513%
- Imaging
- 2020: 972021: 6335%
- Other services
- 2020: 262021: 274%
- Drugs given in the office
- 2020: 822021: 0100%
- Tests and treatments
- 2020: 162021: 0100%
Where Dr. Mertz's Medicare services took place, 2021
- In an office1,22597%
- In a facility433%
Dr. Mertz compared with the Michigan median for urologists, 2021
- Dr. Mertz
- Michigan median
- Medicare services
- 1,268vs 6042.1 times
- Part D claims
- 332vs 70153% below
Medians across 380 urologists in Michigan with Dmand AI profiles that report each measure.
Dr. Mertz's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mertz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mertz and other urologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas James Mertz's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Mertz's median patient age at 66, with 23% women.
Dr. Mertz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women23%
- Men77%
Source: Dmand AI Patient Panel Data
Dr. Thomas James Mertz wrote 15 Medicare Part D claims in 2024
In 2024, Dr. Mertz wrote 15 Medicare Part D claims. 100% of them were for generic drugs. They cover 7 drugs, with $22,165 in total drug cost. In 2021, CMS named 1,109 claims across 16 drugs.
Dr. Mertz's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,1092022: 33270%
Drugs named by CMS: 7 in 2022, 16 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Thomas James Mertz received $2,990 in industry payments from 2016 to 2025
CMS Open Payments shows 147 general payments to Dr. Mertz from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Janssen Pharmaceuticals, Inc paid the most, $394.
General payments to Dr. Mertz by program year, 2016 to 2025
General payments to Dr. Mertz by kind, 2016 to 2025
- Food and beverage$2,75792%
- Education$2338%
Companies that paid Dr. Mertz the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas James Mertz graduated from Wayne State University School of Medicine
Dr. Mertz graduated from Wayne State University School of Medicine in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas James Mertz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas James Mertz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thomas James Mertz's NPI number?
Dr. Thomas James Mertz's NPI number is 1659337137. It was assigned on April 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas James Mertz?
Dr. Thomas James Mertz is a urologist in Grosse Pointe, Michigan. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Thomas James Mertz practice?
Dr. Mertz practices at 18325 E 10 Mile Rd Suite 200 Suite 200, Roseville, MI 48066-4990. Dr. Mertz also practices at 468 Cadieux Rd, Grosse Pointe, MI 48230. Dr. Mertz's primary practice is Michigan Healthcare Professionals - Urology & Nephrology - Roseville (E 10 Mile Rd) in Roseville, Michigan.
What is Dr. Thomas James Mertz's office phone number?
The practice phone on file for Dr. Mertz is (586) 773-6300.
What is Dr. Thomas James Mertz's medical license number?
Dr. Mertz holds Michigan license 4301035307.
What medical group is Dr. Thomas James Mertz part of?
Dr. Mertz is linked to Michigan Healthcare Professionals, P.C.
Does Dr. Thomas James Mertz accept Medicare?
Yes. CMS data shows Dr. Mertz billed Medicare for 1,268 services in 2021.
What services does Dr. Thomas James Mertz bill to Medicare?
In 2021, Dr. Mertz's most billed Medicare services were lab and pathology test (81003), office visit, established patient (99214) and surgery: urinary system (51798).
Where did Dr. Thomas James Mertz go to medical school?
Dr. Mertz graduated from Wayne State University School of Medicine in 1974.
What drugs does Dr. Thomas James Mertz prescribe most?
In 2022 Medicare Part D data, Dr. Mertz's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Methenamine Hippurate.
Has Dr. Thomas James Mertz received payments from drug or device companies?
CMS Open Payments shows $2,990 in general payments to Dr. Mertz from 33 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Thomas James Mertz been practicing?
Dr. Mertz graduated from medical school in 1974, 52 years ago.
Selling to urology practices?
See urologists in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card