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Dr. Thomas Michael Hillis, MD
NPI1972504884PAC ID2062425861
- Medicare services, 2024
- 720
- Medicare patients, 2024
- 614
- Part D claims, 2018
- 127
- Publications
- 1
- Hospital affiliations
- 3
- Practice address
- 2600 St Michael Dr, Texarkana, TX 75503
- Practice phone
- Call (903) 614-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hillis' 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 Michael Hillis is a general surgeon in Texarkana, Texas
Dr. Hillis practices at CHRISTUS St. Michael Hospital in Texarkana, Texas, part of CHRISTUS Health.
Dr. Hillis' NPI, 1972504884, was assigned on August 2, 2005. Dr. Hillis graduated from University of Arkansas College of Medicine in 1974. Dr. Hillis holds Texas license F4867.
NPI and contact details
- NPI
- 1972504884NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062425861
- NPI enumeration date
- August 2, 2005
- NPI status
- Active
- Practice phone
- (903) 614-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas Michael Hillis practices at CHRISTUS St. Michael Hospital in Texarkana, Texas
Dr. Hillis' primary practice is CHRISTUS St. Michael Hospital, at 2600 St Michael Dr, Texarkana, TX 75503 in Bowie County. The practice phone is (903) 614-1000.
- CHRISTUS St. Michael Hospital2600 St Michael Dr, Texarkana, TX 75503 · Bowie CountyPhone(903) 614-1000
Source: Dmand AI Affiliation Data
Dr. Thomas Michael Hillis is affiliated with 4 sites of care
Dr. Hillis' primary practice is CHRISTUS St. Michael Hospital in Texarkana, Texas, part of CHRISTUS Health. Dr. Hillis is also affiliated with Sevier County Medical Center. Dmand AI also links Dr. Hillis to 1 more hospital and 1 clinical lab, each named with a free account. Dr. Hillis' employer is on file too: a hospital.
Sevier County Medical Center1 hospitalName with a free account1 clinical labName with a free accountEmployer: hospitalName with a free account
See all 4 affiliations for Dr. HillisSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas Michael Hillis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hillis practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHRISTUS St. Michael Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Michael Hillis is one of 1,939 general surgeons in Texas
Surgery is Dr. Hillis' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Hillis' licenses on file in 2 states: Texas and Arkansas.
Specialties and state licenses
- Surgery, TexasPrimary
- Arkansas license
General surgeons near Dr. Hillis
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
1,939general surgeons in Texas
8general surgeons in Texarkana
6general surgeons at CHRISTUS St. Michael HospitalSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas Michael Hillis billed Medicare for 720 services in 2024
CMS data shows 720 Medicare services from Dr. Hillis across 5 procedure codes in 2024, for 614 Medicare patients. Medicare paid $14,531 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024720
Medicare patients614
Paid by Medicare$14,531
Procedure codes5
Dr. Hillis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,1522024: 72038%
Dr. Hillis compared with the Texas median for general surgeons, 2024
- Dr. Hillis
- Texas median
- Medicare services
- 720vs 1186.1 times
- Medicare patients
- 614vs 976.3 times
- Part D claims
- 127vs 423.0 times
Medians across 1,674 general surgeons in Texas with Dmand AI profiles that report each measure.
Dr. Hillis' 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. Hillis and other general surgeons in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Michael Hillis treated 614 Medicare patients in 2024, average age 76
CMS counts 614 Medicare patients who saw Dr. Hillis in 2024. The largest group is 65 to 74, with 211 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hillis' median patient age at 70, with 54% women.
Medicare patients, 2024614
Average age76
Average risk score1.72
Also on Medicaid21%
Dr. Hillis' Medicare patients by age, 2024
Dr. Hillis' Medicare patients by sex, 2024
- Women34055%
- Men27445%
Chronic conditions among Dr. Hillis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes45%
- Ischemic heart disease45%
- Heart failure38%
- Chronic kidney disease35%
- COPD34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hillis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Michael Hillis wrote 127 Medicare Part D claims in 2018
In 2018, Dr. Hillis wrote 127 Medicare Part D claims. They cover 4 drugs, with $911 in total drug cost. In 2017, CMS named 164 claims across 5 drugs.
Part D claims, 2018127
Drugs named by CMS4
Total drug cost$911
Dr. Hillis' most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 1642018: 12723%
Drugs named by CMS: 4 in 2018, 5 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Thomas Michael Hillis has 1 publication on record
Dmand AI links 1 paper to Dr. Hillis.
Papers1
Recent publications by Dr. Hillis
See who Dr. Hillis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hillis works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas Michael Hillis received $292 in industry payments from 2016 to 2019
CMS Open Payments shows 14 general payments to Dr. Hillis from 8 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $107.
General payments to Dr. Hillis by program year, 2016 to 2019
Companies that paid Dr. Hillis the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas Michael Hillis has 1 award and honors on record
Dmand AI lists 1 award for Dr. Hillis.
Awards and honors for Dr. Hillis
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Thomas Michael Hillis graduated from University of Arkansas College of Medicine
Dr. Hillis graduated from University of Arkansas College of Medicine in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Thomas Michael Hillis accepts plans from 15 insurance carriers
Dr. Hillis is in network with 15 carriers, including Aetna, United Healthcare and Alliant Health Plans. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Alliant Health Plans
- Elevance
- HCSC
- AR State Medicaid
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- +7 more carriersWith a free account
Plan types Dr. Hillis accepts, by number of carriers
- HMO8
- PPO8
- Medicare3
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas Michael Hillis'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Thomas Michael Hillis
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 Michael Hillis' NPI number?
Dr. Thomas Michael Hillis' NPI number is 1972504884. It was assigned on August 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Michael Hillis?
Dr. Thomas Michael Hillis is a general surgeon in Texarkana, Texas. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Thomas Michael Hillis practice?
Dr. Hillis practices at 2600 St Michael Dr, Texarkana, TX 75503. Dr. Hillis' primary practice is CHRISTUS St. Michael Hospital in Texarkana, Texas, part of CHRISTUS Health. Dmand AI also links Dr. Hillis to 1 hospital and 1 clinical lab.
What is Dr. Thomas Michael Hillis' office phone number?
The practice phone on file for Dr. Hillis is (903) 614-1000.
What is Dr. Thomas Michael Hillis' medical license number?
Dr. Hillis holds Texas license F4867, one of the licenses on file in 2 states.
Which states has Dr. Thomas Michael Hillis been licensed in?
Dmand AI has state licenses on file for Dr. Hillis in Texas and Arkansas.
Which hospitals is Dr. Thomas Michael Hillis affiliated with?
Dr. Hillis practices at CHRISTUS St. Michael Hospital in Texarkana, Texas. Dr. Hillis is also affiliated with Sevier County Medical Center. Dmand AI links Dr. Hillis to 1 more hospital.
Does Dr. Thomas Michael Hillis accept Medicare?
Yes. CMS data shows Dr. Hillis billed Medicare for 720 services in 2024.
How many Medicare patients does Dr. Thomas Michael Hillis see?
CMS counts 614 Medicare patients who saw Dr. Hillis in 2024, with an average age of 76.
What services does Dr. Thomas Michael Hillis bill to Medicare?
In 2024, Dr. Hillis' most billed Medicare services were blood vessel study (93970), blood vessel study (93880) and blood vessel study (93971).
Show 6 more questionsShow fewer questions
Where did Dr. Thomas Michael Hillis go to medical school?
Dr. Hillis graduated from University of Arkansas College of Medicine in 1974.
What drugs does Dr. Thomas Michael Hillis prescribe most?
In 2018 Medicare Part D data, Dr. Hillis' most prescribed drugs by claims were Acetaminophen-Codeine, Tramadol HCl and Doxycycline Monohydrate.
Has Dr. Thomas Michael Hillis received payments from drug or device companies?
CMS Open Payments shows $292 in general payments to Dr. Hillis from 8 companies from 2016 to 2019. The largest total came from Boston Scientific Corporation.
How long has Dr. Thomas Michael Hillis been practicing?
Dr. Hillis graduated from medical school in 1974, 52 years ago.
Does Dr. Thomas Michael Hillis do research?
Dmand AI links 1 publication to Dr. Hillis.
What insurance does Dr. Thomas Michael Hillis accept?
Dr. Hillis is in network with 15 carriers, including Aetna, United Healthcare and Alliant Health Plans. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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