Dr. Grant Daniel Thimesch, DO
- Hospital affiliations
- 1
- Industry payments
- $8,237
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 18101 Oakwood Blvd, Dearborn, MI 48124
- Practice phone
- Call (313) 593-7125
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Thimesch'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. Grant Daniel Thimesch is a dermatologist in Dearborn, Michigan
Dr. Thimesch practices at Corewell Health Dearborn Hospital in Dearborn, Michigan, part of Corewell Health.
Dr. Thimesch's NPI, 1770267197, was assigned on June 14, 2023. Dr. Thimesch holds Michigan license 5151016329.
- NPI
- 1770267197NPI Registry (opens in a new tab)
- NPI enumeration date
- June 14, 2023
- NPI status
- Active
- Practice phone
- (313) 593-7125
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Grant Daniel Thimesch practices at Corewell Health Dearborn Hospital in Dearborn, Michigan
Dr. Thimesch's primary practice is Corewell Health Dearborn Hospital, at 18101 Oakwood Blvd, Dearborn, MI 48124 in Wayne County. The practice phone is (313) 593-7125.
- Corewell Health Dearborn Hospital18101 Oakwood Blvd, Dearborn, MI 48124 · Wayne CountyPhone(313) 593-7125
Source: Dmand AI Affiliation Data
Dr. Grant Daniel Thimesch is affiliated with 1 site of care
Dr. Thimesch's primary practice is Corewell Health Dearborn Hospital in Dearborn, Michigan, part of Corewell Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Grant Daniel Thimesch's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thimesch practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Dearborn Hospital | 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 Corewell Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Grant Daniel Thimesch is one of 430 dermatologists in Michigan
Dermatology is Dr. Thimesch's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Thimesch is licensed in Michigan.
Specialties and state licenses
- Dermatology, MichiganPrimary
Dermatologists near Dr. Thimesch
Counts of dermatologists 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. Grant Daniel Thimesch's patients have a median age of 24
Across all payers, Dmand AI patient panel data puts Dr. Thimesch's median patient age at 24, with 80% women.
Dr. Thimesch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 24
Patient panel by sex, all payers
- Women80%
- Men20%
Source: Dmand AI Patient Panel Data
Dr. Grant Daniel Thimesch received $8,237 in industry payments from 2023 to 2025
CMS Open Payments shows 134 general payments to Dr. Thimesch from 22 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 97% of the total. Sanofi and Genzyme US Companies paid the most, $1,014.
General payments to Dr. Thimesch by program year, 2023 to 2025
General payments to Dr. Thimesch by kind, 2023 to 2025
- Food and beverage$7,95897%
- Education$2793%
Companies that paid Dr. Thimesch the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Grant Daniel Thimesch'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Grant Daniel Thimesch
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. Grant Daniel Thimesch's NPI number?
Dr. Grant Daniel Thimesch's NPI number is 1770267197. It was assigned on June 14, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Grant Daniel Thimesch?
Dr. Grant Daniel Thimesch is a dermatologist in Dearborn, Michigan. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Grant Daniel Thimesch practice?
Dr. Thimesch practices at 18101 Oakwood Blvd, Dearborn, MI 48124. Dr. Thimesch's primary practice is Corewell Health Dearborn Hospital in Dearborn, Michigan, part of Corewell Health.
What is Dr. Grant Daniel Thimesch's office phone number?
The practice phone on file for Dr. Thimesch is (313) 593-7125.
What is Dr. Grant Daniel Thimesch's medical license number?
Dr. Thimesch holds Michigan license 5151016329.
Which hospitals is Dr. Grant Daniel Thimesch affiliated with?
Dr. Thimesch practices at Corewell Health Dearborn Hospital in Dearborn, Michigan.
Has Dr. Grant Daniel Thimesch received payments from drug or device companies?
CMS Open Payments shows $8,237 in general payments to Dr. Thimesch from 22 companies from 2023 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Grant Daniel Thimesch been practicing?
Dr. Thimesch's NPI was assigned in 2023.
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