Thomas Joseph Mason
- Part D claims, 2024
- 122
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 45 St Lawrence Drive, Tiffin, OH 44883
- Practice phone
- Call (419) 455-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Thomas Mason'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.
Thomas Joseph Mason is an internist in Tiffin, Ohio
Thomas Mason practices at Mercy Health - Tiffin Hospital in Tiffin, Ohio, part of Bon Secours Mercy Health.
Thomas Mason's NPI, 1649936634, was assigned on November 13, 2021. Thomas Mason holds Ohio license 35.149208.
- NPI
- 1649936634NPI Registry (opens in a new tab)
- NPI enumeration date
- November 13, 2021
- NPI status
- Active
- Practice phone
- (419) 455-7000
- 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
Thomas Joseph Mason practices at Mercy Health - Tiffin Hospital in Tiffin, Ohio
Thomas Mason's primary practice is Mercy Health - Tiffin Hospital, at 45 St Lawrence Drive, Tiffin, OH 44883 in Seneca County. The practice phone is (419) 455-7000.
- Mercy Health - Tiffin Hospital45 St Lawrence Drive, Tiffin, OH 44883 · Seneca CountyPhone(419) 455-7000
Source: Dmand AI Affiliation Data
Thomas Joseph Mason is affiliated with 2 sites of care
Thomas Mason's primary practice is Mercy Health - Tiffin Hospital in Tiffin, Ohio, part of Bon Secours Mercy Health. Dmand AI also links Thomas Mason to 1 home health agency, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Thomas Joseph Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Mason practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Health - Tiffin Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Bon Secours Mercy Health and 6.2K+ hospitals, with verified contacts in the same login.
Thomas Joseph Mason is one of 4,708 internists in Ohio
Internal medicine is Thomas Mason's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Thomas Mason is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Internists near Thomas Mason
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
Thomas Joseph Mason's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Thomas Mason's median patient age at 62, with 71% women.
Thomas Mason's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Thomas Joseph Mason wrote 122 Medicare Part D claims in 2024
In 2024, Thomas Mason wrote 122 Medicare Part D claims for 27 patients. 84% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $124 in total drug cost.
Thomas Mason's Part D claims by kind of drug, 2024
- Generic102 claims84%
- Brand-name20 claims16%
Thomas Mason's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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.
Sources for Thomas Joseph Mason'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 |
| 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 Thomas Joseph Mason
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Thomas Joseph Mason's NPI number?
Thomas Joseph Mason's NPI number is 1649936634. It was assigned on November 13, 2021, and it is active in the NPI Registry.
What does Thomas Joseph Mason specialize in?
Thomas Joseph Mason is an internist in Tiffin, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Thomas Joseph Mason practice?
Thomas Mason practices at 45 St Lawrence Drive, Tiffin, OH 44883. Thomas Mason's primary practice is Mercy Health - Tiffin Hospital in Tiffin, Ohio, part of Bon Secours Mercy Health. Dmand AI also links Thomas Mason to 1 home health agency.
What is Thomas Joseph Mason's office phone number?
The practice phone on file for Thomas Mason is (419) 455-7000.
What is Thomas Joseph Mason's medical license number?
Thomas Mason holds Ohio license 35.149208.
Which hospitals is Thomas Joseph Mason affiliated with?
Thomas Mason practices at Mercy Health - Tiffin Hospital in Tiffin, Ohio.
What drugs does Thomas Joseph Mason prescribe most?
In 2023 Medicare Part D data, Thomas Mason's most prescribed drugs by claims were Atorvastatin Calcium.
How long has Thomas Joseph Mason been practicing?
Thomas Mason's NPI was assigned in 2021.
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