Dr. Thomas Roy Westerhoff, MD
- Part D claims, 2024
- 16
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1121 Broadway St, Quincy, IL 62301
- Practice phone
- Call (217) 222-5055
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Thomas Roy Westerhoff, MD
Physician office · Quincy, Illinois
Find Dr. Westerhoff'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 Roy Westerhoff is an internist in Quincy, Illinois
Dr. Westerhoff practices at Thomas Roy Westerhoff, MD in Quincy, Illinois.
Dr. Westerhoff's NPI, 1598706871, was assigned on June 9, 2006.
- NPI
- 1598706871NPI Registry (opens in a new tab)
- NPI enumeration date
- June 9, 2006
- NPI status
- Active
- Practice phone
- (217) 222-5055
- 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. Thomas Roy Westerhoff practices at Thomas Roy Westerhoff, MD in Quincy, Illinois
Dr. Westerhoff's primary practice is Thomas Roy Westerhoff, MD, at 1121 Broadway St, Quincy, IL 62301. The practice phone is (217) 222-5055.
- Thomas Roy Westerhoff, MD1121 Broadway St, Quincy, IL 62301Phone(217) 222-5055
Source: Dmand AI Affiliation Data
Dr. Thomas Roy Westerhoff is affiliated with 1 site of care
Dr. Westerhoff's primary practice is Thomas Roy Westerhoff, MD in Quincy, Illinois.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Thomas Roy Westerhoff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Westerhoff practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Thomas Roy Westerhoff, MD | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Roy Westerhoff is one of 5,652 internists in Illinois
Internal medicine is Dr. Westerhoff's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Westerhoff has a license on file in Illinois.
Specialties and state licenses
- Internal medicine, Illinois
Internists near Dr. Westerhoff
Counts of internists 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 Roy Westerhoff's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Westerhoff's median patient age at 78, with 0% women.
Dr. Westerhoff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Thomas Roy Westerhoff wrote 16 Medicare Part D claims in 2024
In 2024, Dr. Westerhoff wrote 16 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $96 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Westerhoff's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 129%
Drugs named by CMS: 1 in 2024, 1 in 2023.
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
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Thomas Roy Westerhoff'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 Data |
| 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) |
| 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 Roy Westerhoff
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 Roy Westerhoff's NPI number?
Dr. Thomas Roy Westerhoff's NPI number is 1598706871. It was assigned on June 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Roy Westerhoff?
Dr. Thomas Roy Westerhoff is an internist in Quincy, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Thomas Roy Westerhoff practice?
Dr. Westerhoff practices at 1121 Broadway St, Quincy, IL 62301. Dr. Westerhoff's primary practice is Thomas Roy Westerhoff, MD in Quincy, Illinois.
What is Dr. Thomas Roy Westerhoff's office phone number?
The practice phone on file for Dr. Westerhoff is (217) 222-5055.
What drugs does Dr. Thomas Roy Westerhoff prescribe most?
In 2024 Medicare Part D data, Dr. Westerhoff's most prescribed drugs by claims were Esomeprazole Magnesium.
How long has Dr. Thomas Roy Westerhoff been practicing?
Dr. Westerhoff's NPI was assigned in 2006.
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