Dr. Timothy G. Timmerman, MD
- Medicare services, 2024
- 4,003
- Medicare patients, 2024
- 1,441
- Hospital affiliations
- 5
- Industry payments
- $89
- Medical groups
- 2
- Practice address
- 250 Mercy Drive, Dubuque, IA 52001
- Practice phone
- Call (563) 589-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Timmerman'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. Timothy G. Timmerman is a pathologist in Dubuque, Iowa
Dr. Timmerman practices at MercyOne Dubuque Medical Center in Dubuque, Iowa, part of Trinity Health.
Dr. Timmerman's NPI, 1265405781, was assigned on February 8, 2006. Dr. Timmerman graduated from University of Iowa, RJ & L Carver College of Medicine in 1992. Dr. Timmerman holds Iowa license 31521.
- NPI
- 1265405781NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729098157
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (563) 589-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy G. Timmerman practices at MercyOne Dubuque Medical Center in Dubuque, Iowa
Dr. Timmerman's primary practice is MercyOne Dubuque Medical Center, at 250 Mercy Drive, Dubuque, IA 52001 in Dubuque County. The practice phone is (563) 589-8000.
- MercyOne Dubuque Medical Center250 Mercy Drive, Dubuque, IA 52001 · Dubuque CountyPhone(563) 589-8000
Source: Dmand AI Affiliation Data
Dr. Timothy G. Timmerman is affiliated with 5 sites of care and 2 medical groups
Dr. Timmerman's primary practice is MercyOne Dubuque Medical Center in Dubuque, Iowa, part of Trinity Health. Dr. Timmerman is also affiliated with UnityPoint Health - Finley Hospital. The medical group on file is MercyOne Dubuque Medical Center. Dmand AI also links Dr. Timmerman to 3 more hospitals and 1 medical group, each named with a free account. Dr. Timmerman's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy G. Timmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Timmerman practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MercyOne Dubuque Medical Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy G. Timmerman is one of 86 pathologists in Iowa
Anatomic pathology and clinical pathology is Dr. Timmerman's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Timmerman is licensed in Iowa.
Specialties and state licenses
- Anatomic pathology and clinical pathology, IowaPrimary
Pathologists near Dr. Timmerman
Counts of pathologists 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. Timothy G. Timmerman billed Medicare for 4,003 services in 2024
CMS data shows 4,003 Medicare services from Dr. Timmerman across 20 procedure codes in 2024, for 1,441 Medicare patients. Medicare paid $112,223 for them.
Dr. Timmerman's Medicare services by type, 2020 to 2024
- 2020
- 2024
- Lab and pathology
- 2020: 1,1542024: 3,962243%
- Other services
- 2020: 02024: 41
Where Dr. Timmerman's Medicare services took place, 2024
- In an office2,41460%
- In a facility1,58940%
Dr. Timmerman compared with the Iowa median for pathologists, 2024
- Dr. Timmerman
- Iowa median
- Medicare services
- 4,003vs 1,6622.4 times
- Medicare patients
- 1,441vs 88962% above
Medians across 91 pathologists in Iowa with Dmand AI profiles that report each measure.
Dr. Timmerman's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Timmerman and other pathologists in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy G. Timmerman treated 1,441 Medicare patients in 2024, average age 74
CMS counts 1,441 Medicare patients who saw Dr. Timmerman in 2024. The largest group is 65 to 74, with 729 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Timmerman's median patient age at 73, with 54% women.
Dr. Timmerman's Medicare patients by age, 2024
Dr. Timmerman's Medicare patients by sex, 2024
- Women73951%
- Men70249%
Chronic conditions among Dr. Timmerman's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis35%
- Diabetes29%
- Anxiety25%
- Ischemic heart disease25%
- Cancer22%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Timmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Timothy G. Timmerman takes part in Medicare
Dr. Timmerman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Timothy G. Timmerman received $89 in industry payments from 2021 to 2024
CMS Open Payments shows 3 general payments to Dr. Timmerman from 2 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Becton, Dickinson and Company paid the most, $74.
General payments to Dr. Timmerman by program year, 2021 to 2024
Companies that paid Dr. Timmerman the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy G. Timmerman graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Timmerman graduated from University of Iowa, RJ & L Carver College of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy G. Timmerman'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Timothy G. Timmerman
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. Timothy G. Timmerman's NPI number?
Dr. Timothy G. Timmerman's NPI number is 1265405781. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy G. Timmerman?
Dr. Timothy G. Timmerman is a pathologist in Dubuque, Iowa. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Timothy G. Timmerman practice?
Dr. Timmerman practices at 250 Mercy Drive, Dubuque, IA 52001. Dr. Timmerman's primary practice is MercyOne Dubuque Medical Center in Dubuque, Iowa, part of Trinity Health. Dmand AI also links Dr. Timmerman to 3 hospitals and 1 medical group.
What is Dr. Timothy G. Timmerman's office phone number?
The practice phone on file for Dr. Timmerman is (563) 589-8000.
What is Dr. Timothy G. Timmerman's medical license number?
Dr. Timmerman holds Iowa license 31521.
Which hospitals is Dr. Timothy G. Timmerman affiliated with?
Dr. Timmerman practices at MercyOne Dubuque Medical Center in Dubuque, Iowa. Dr. Timmerman is also affiliated with UnityPoint Health - Finley Hospital. Dmand AI links Dr. Timmerman to 3 more hospitals.
What medical group is Dr. Timothy G. Timmerman part of?
Dr. Timmerman is linked to MercyOne Dubuque Medical Center. Dmand AI links Dr. Timmerman to 1 more medical group.
Does Dr. Timothy G. Timmerman accept Medicare?
Yes. CMS data shows Dr. Timmerman billed Medicare for 4,003 services in 2024, and Dr. Timmerman accepts Medicare assignment.
How many Medicare patients does Dr. Timothy G. Timmerman see?
CMS counts 1,441 Medicare patients who saw Dr. Timmerman in 2024, with an average age of 74.
What services does Dr. Timothy G. Timmerman bill to Medicare?
In 2024, Dr. Timmerman's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
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Where did Dr. Timothy G. Timmerman go to medical school?
Dr. Timmerman graduated from University of Iowa, RJ & L Carver College of Medicine in 1992.
Has Dr. Timothy G. Timmerman received payments from drug or device companies?
CMS Open Payments shows $89 in general payments to Dr. Timmerman from 2 companies from 2021 to 2024. The largest total came from Becton, Dickinson and Company.
How long has Dr. Timothy G. Timmerman been practicing?
Dr. Timmerman graduated from medical school in 1992, 34 years ago.
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