Dr. Christopher M. Thomas, DO

  • Madison, WI
  • Emergency medicine physician
NPI1811302854
Medicare services, 2024
720
Medicare patients, 2024
458
Part D claims, 2024
240
Hospital affiliations
2
Industry payments
$12
Practice address
700 South Park St, Madison, WI 53715
Practice phone
Call (608) 251-6100
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

SSM Health St. Mary's Hospital - Madison

Hospital · Madison, Wisconsin

See all 8 affiliations

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Dr. Christopher M. Thomas is an emergency medicine physician in Madison, Wisconsin

Dr. Thomas practices at SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin, part of SSM Health Care.

Dr. Thomas' NPI, 1811302854, was assigned on June 28, 2014. Dr. Thomas holds Wisconsin license 67192.21.

NPI and contact details
NPI enumeration date
June 28, 2014
NPI status
Active
Practice phone
(608) 251-6100
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Christopher M. Thomas practices at SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin

Dr. Thomas' primary practice is SSM Health St. Mary's Hospital - Madison, at 700 South Park St, Madison, WI 53715 in Dane County. The practice phone is (608) 251-6100.

Source: Dmand AI Affiliation Data

Dr. Christopher M. Thomas is affiliated with 2 sites of care and 6 medical groups

Dr. Thomas' primary practice is SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin, part of SSM Health Care. Dr. Thomas is also affiliated with Ascension Columbia St. Mary's Hospital - Milwaukee Campus. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI also links Dr. Thomas to 5 more medical groups, each named with a free account.

See all 8 affiliations for Dr. Thomas

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Christopher M. Thomas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
SSM Health St. Mary's Hospital - MadisonAvailable with a free account
+1 more site and 5 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Christopher M. Thomas is one of 1,211 emergency medicine physicians in Wisconsin

Emergency medicine is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Thomas' licenses on file in 2 states: Wisconsin and Illinois.

Specialties and state licenses

  • Emergency medicine, WisconsinPrimaryLicense 67192.21 · taxonomy 207P00000X
  • Illinois licenseLicense 125.06984

Emergency medicine physicians near Dr. Thomas

Counts of emergency medicine physicians 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. Christopher M. Thomas billed Medicare for 720 services in 2024

CMS data shows 720 Medicare services from Dr. Thomas across 4 procedure codes in 2024, for 458 Medicare patients. Medicare paid $58,057 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024720
Medicare patients458
Paid by Medicare$58,057
Procedure codes4

Dr. Thomas' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4862024: 4645%
Tests and treatments
2023: 2442024: 2565%

Dr. Thomas compared with the Wisconsin median for emergency medicine physicians, 2024

  • Dr. Thomas
  • Wisconsin median
Medicare services
720vs 2462.9 times
Medicare patients
458vs 2212.1 times
Part D claims
119vs 572.1 times

Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.

Dr. Thomas' 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.

See all procedures by Dr. Thomas

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Christopher M. Thomas treated 458 Medicare patients in 2024, average age 77

CMS counts 458 Medicare patients who saw Dr. Thomas in 2024. The largest group is 75 to 84, with 181 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.82, 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. Thomas' median patient age at 48, with 56% women.

Medicare patients, 2024458
Average age77
Average risk score1.82
Also on Medicaid20%

Dr. Thomas' Medicare patients by age, 2024

Dr. Thomas' Medicare patients by sex, 2024

  • Women25556%
  • Men20344%

Chronic conditions among Dr. Thomas' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis39%
  4. Anxiety37%
  5. Atrial fibrillation35%
  6. Mood disorders35%
  7. Chronic kidney disease34%
  8. Ischemic heart disease34%

Share of Medicare patients with each condition. A patient can have several.

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 48

Patient panel by sex, all payers

  • Women56%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Christopher M. Thomas wrote 240 Medicare Part D claims in 2024

In 2024, Dr. Thomas wrote 240 Medicare Part D claims for 178 patients. 92% of them were for generic drugs. CMS names the drug for 119 of them, across 6 drugs with 11 or more claims each, at $912 in total drug cost. In 2023, CMS named 106 claims across 5 drugs.

Part D claims, 2024240
Drugs named by CMS6
Total drug cost$912
Part D patients178

Dr. Thomas' Part D claims by kind of drug, 2024

  • Generic221 claims92%
  • Brand-name19 claims8%

Dr. Thomas' 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.

Drug classes CMS tracks in Dr. Thomas' Part D claims, 2024

  • Opioids9%21 of 240 claims
  • Antibiotics26%62 of 240 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1062024: 11912%

Drugs named by CMS: 6 in 2024, 5 in 2023.

See all prescribing by Dr. Thomas

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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Dr. Christopher M. Thomas received $12 in industry payments in 2016

CMS Open Payments shows 1 general payment to Dr. Thomas from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. CSL Behring paid the most, $12.

Companies that paid Dr. Thomas the most, 2016 to 2016

Share is of all general payments to this clinician.

See all payments to Dr. Thomas

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Christopher M. Thomas's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Christopher M. 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. Christopher M. Thomas' NPI number?

Dr. Christopher M. Thomas' NPI number is 1811302854. It was assigned on June 28, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Christopher M. Thomas?

Dr. Christopher M. Thomas is an emergency medicine physician in Madison, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Christopher M. Thomas practice?

Dr. Thomas practices at 700 South Park St, Madison, WI 53715. Dr. Thomas' primary practice is SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin, part of SSM Health Care. Dmand AI also links Dr. Thomas to 5 medical groups.

What is Dr. Christopher M. Thomas' office phone number?

The practice phone on file for Dr. Thomas is (608) 251-6100.

What is Dr. Christopher M. Thomas' medical license number?

Dr. Thomas holds Wisconsin license 67192.21, one of the licenses on file in 2 states.

Which states has Dr. Christopher M. Thomas been licensed in?

Dmand AI has state licenses on file for Dr. Thomas in Wisconsin and Illinois.

Which hospitals is Dr. Christopher M. Thomas affiliated with?

Dr. Thomas practices at SSM Health St. Mary's Hospital - Madison in Madison, Wisconsin. Dr. Thomas is also affiliated with Ascension Columbia St. Mary's Hospital - Milwaukee Campus.

What medical group is Dr. Christopher M. Thomas part of?

Dr. Thomas is linked to Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI links Dr. Thomas to 5 more medical groups.

Does Dr. Christopher M. Thomas accept Medicare?

Yes. CMS data shows Dr. Thomas billed Medicare for 720 services in 2024.

How many Medicare patients does Dr. Christopher M. Thomas see?

CMS counts 458 Medicare patients who saw Dr. Thomas in 2024, with an average age of 77.

Show 4 more questionsShow fewer questions

What services does Dr. Christopher M. Thomas bill to Medicare?

In 2024, Dr. Thomas' most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).

What drugs does Dr. Christopher M. Thomas prescribe most?

In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Prednisone, Cephalexin and Ondansetron ODT.

Has Dr. Christopher M. Thomas received payments from drug or device companies?

CMS Open Payments shows $12 in general payments to Dr. Thomas from 1 company from 2016 to 2016. The largest total came from CSL Behring.

How long has Dr. Christopher M. Thomas been practicing?

Dr. Thomas graduated from medical school in 2014, 12 years ago.

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