Dr. Theodore S. Thomas, MD
- Medicare services, 2021
- 947
- Part D claims, 2022
- 30
- Hospital affiliations
- 1
- Industry payments
- $5,159
- Insurance carriers
- 4
- Practice address
- 705 S Grand Ave, Nashville, IL 62263
- Practice phone
- Call (618) 327-8236
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Thomas' professional email, personal email and mobile number
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Dr. Theodore S. Thomas is a nephrologist in Nashville, Illinois
Dr. Thomas practices at Washington County Hospital & Medical Group in Nashville, Illinois, part of Washington County Hospital.
Dr. Thomas' NPI, 1669477113, was assigned on June 20, 2005. Dr. Thomas graduated from University of Colorado Anschutz Medical Campus in 1980. Dr. Thomas' California license number on file is G61681.
- NPI
- 1669477113NPI Registry (opens in a new tab)
- NPI enumeration date
- June 20, 2005
- NPI status
- Active
- Practice phone
- (618) 327-8236
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Theodore S. Thomas practices at Washington County Hospital & Medical Group in Nashville, Illinois
Dr. Thomas' primary practice is Washington County Hospital & Medical Group, at 705 S Grand Ave, Nashville, IL 62263 in Washington County. The practice phone is (618) 327-8236.
- Washington County Hospital & Medical Group705 S Grand Ave, Nashville, IL 62263 · Washington CountyPhone(618) 327-8236
Source: Dmand AI Affiliation Data
Dr. Theodore S. Thomas is affiliated with 1 site of care
Dr. Thomas' primary practice is Washington County Hospital & Medical Group in Nashville, Illinois, part of Washington County Hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Theodore S. Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Washington County Hospital & Medical Group | 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 Washington County Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Theodore S. Thomas is one of 534 nephrologists in Illinois
Nephrology is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Thomas is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Thomas' licenses on file in 2 states: California and West Virginia.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
- West Virginia license
Nephrologists near Dr. Thomas
Counts of nephrologists 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. Theodore S. Thomas billed Medicare for 947 services in 2021
CMS data shows 947 Medicare services from Dr. Thomas across 7 procedure codes in 2021. Medicare paid $132,591 for them.
Dr. Thomas' Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1,2592021: 58953%
- Tests and treatments
- 2020: 7582021: 35853%
Where Dr. Thomas' Medicare services took place, 2021
- In an office42345%
- In a facility52455%
Dr. Thomas compared with the Illinois median for nephrologists, 2021
- Dr. Thomas
- Illinois median
- Medicare services
- 947vs 1,28426% below
- Part D claims
- 30vs 57895% below
Medians across 526 nephrologists in Illinois with Dmand AI profiles that report each measure.
Dr. Thomas' 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. Thomas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thomas and other nephrologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Theodore S. Thomas' patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 57, with 50% women.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Theodore S. Thomas wrote 30 Medicare Part D claims in 2022
In 2022, Dr. Thomas wrote 30 Medicare Part D claims. They cover 2 drugs, with $54,827 in total drug cost. In 2021, CMS named 899 claims across 38 drugs.
Dr. Thomas' 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: 8992022: 3097%
Drugs named by CMS: 2 in 2022, 38 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Theodore S. Thomas received $5,159 in industry payments from 2016 to 2020
CMS Open Payments shows 242 general payments to Dr. Thomas from 32 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 98% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $513.
General payments to Dr. Thomas by program year, 2016 to 2020
General payments to Dr. Thomas by kind, 2016 to 2020
- Food and beverage$5,06198%
- Education$982%
Companies that paid Dr. Thomas the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Theodore S. Thomas graduated from University of Colorado Anschutz Medical Campus
Dr. Thomas graduated from University of Colorado Anschutz Medical Campus in 1980.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Theodore S. Thomas accepts plans from 4 insurance carriers
Dr. Thomas is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
Plan types Dr. Thomas accepts, by number of carriers
- Medicare4
- PPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Theodore S. Thomas'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Theodore S. Thomas
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. Theodore S. Thomas' NPI number?
Dr. Theodore S. Thomas' NPI number is 1669477113. It was assigned on June 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Theodore S. Thomas?
Dr. Theodore S. Thomas is a nephrologist in Nashville, Illinois. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Theodore S. Thomas practice?
Dr. Thomas practices at 705 S Grand Ave, Nashville, IL 62263. Dr. Thomas' primary practice is Washington County Hospital & Medical Group in Nashville, Illinois, part of Washington County Hospital.
What is Dr. Theodore S. Thomas' office phone number?
The practice phone on file for Dr. Thomas is (618) 327-8236.
What is Dr. Theodore S. Thomas' medical license number?
Dr. Thomas' California license number on file is G61681, one of the licenses on file in 2 states.
Which states has Dr. Theodore S. Thomas been licensed in?
Dmand AI has state licenses on file for Dr. Thomas in California (1987 to 2024) and West Virginia (1981 to 1989).
Which hospitals is Dr. Theodore S. Thomas affiliated with?
Dr. Thomas practices at Washington County Hospital & Medical Group in Nashville, Illinois.
Does Dr. Theodore S. Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 947 services in 2021.
Is Dr. Theodore S. Thomas board certified?
Yes. Dr. Thomas is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Theodore S. Thomas bill to Medicare?
In 2021, Dr. Thomas' most billed Medicare services were hospital inpatient care (99232), dialysis (90960) and dialysis (90961).
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Where did Dr. Theodore S. Thomas go to medical school?
Dr. Thomas graduated from University of Colorado Anschutz Medical Campus in 1980.
What drugs does Dr. Theodore S. Thomas prescribe most?
In 2022 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Tacrolimus and Velphoro.
Has Dr. Theodore S. Thomas received payments from drug or device companies?
CMS Open Payments shows $5,159 in general payments to Dr. Thomas from 32 companies from 2016 to 2020. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Theodore S. Thomas been practicing?
Dr. Thomas graduated from medical school in 1980, 46 years ago.
What insurance does Dr. Theodore S. Thomas accept?
Dr. Thomas is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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