Dr. John Madison Clair, DO
- Medicare services, 2024
- 222
- Medicare patients, 2024
- 99
- Part D claims, 2024
- 127
- Hospital affiliations
- 2
- Industry payments
- $384
- Practice address
- 331 4th Ave E, Trenton, ND 58853
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trenton Community Clinic
Mammography / Breast Imaging Center · Trenton, North Dakota
Find Dr. Clair'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. John Madison Clair is an internist in Trenton, North Dakota
Dr. Clair practices at Trenton Community Clinic in Trenton, North Dakota.
Dr. Clair's NPI, 1427232354, was assigned on December 27, 2007. Dr. Clair graduated from West Virginia School of Osteopathic Medicine in 2006. Dr. Clair holds North Dakota license 13540.
- NPI
- 1427232354NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113073594
- NPI enumeration date
- December 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Madison Clair practices at Trenton Community Clinic in Trenton, North Dakota
Dr. Clair's primary practice is Trenton Community Clinic, at 331 4th Ave E, Trenton, ND 58853.
- Trenton Community Clinic331 4th Ave E, Trenton, ND 58853
Source: Dmand AI Affiliation Data
Dr. John Madison Clair is affiliated with 4 sites of care and 4 medical groups
Dr. Clair's primary practice is Trenton Community Clinic in Trenton, North Dakota. Dr. Clair is also affiliated with CHI St. Alexius Health Williston. The medical group on file is Trenton Community Clinic. Dmand AI also links Dr. Clair to 1 more hospital, 3 medical groups and 1 group practice or clinic, each named with a free account. Dr. Clair's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Madison Clair's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clair practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trenton Community Clinic | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Madison Clair is one of 193 internists in North Dakota
Internal medicine is Dr. Clair's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Clair's licenses on file in 2 states: North Dakota and Nevada.
Specialties and state licenses
- Internal medicine, North DakotaPrimary
- Hospitalist, Nevada
Internists near Dr. Clair
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. John Madison Clair billed Medicare for 222 services in 2024
CMS data shows 222 Medicare services from Dr. Clair across 5 procedure codes in 2024, for 99 Medicare patients. Medicare paid $17,589 for them.
Dr. Clair's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6942024: 22268%
Where Dr. Clair's Medicare services took place, 2024
- In an office2511%
- In a facility19789%
Dr. Clair compared with the North Dakota median for internists, 2024
- Dr. Clair
- North Dakota median
- Medicare services
- 222vs 44650% below
- Medicare patients
- 99vs 26463% below
- Part D claims
- 127vs 23145% below
Medians across 192 internists in North Dakota with Dmand AI profiles that report each measure.
Dr. Clair's 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. Clair and other internists in North Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Madison Clair treated 99 Medicare patients in 2024, average age 75
CMS counts 99 Medicare patients who saw Dr. Clair in 2024. The largest group is 85 and over, with 31 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.80, 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. Clair's median patient age at 66, with 41% women.
Dr. Clair's Medicare patients by age, 2024
Dr. Clair's Medicare patients by sex, 2024
- Women5657%
- Men4343%
Chronic conditions among Dr. Clair's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis54%
- Depression53%
- Mood disorders53%
- Heart failure51%
- Anxiety43%
- Chronic kidney disease41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Clair's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Madison Clair wrote 127 Medicare Part D claims in 2024
In 2024, Dr. Clair wrote 127 Medicare Part D claims for 28 patients. 83% of them were for generic drugs. They cover 9 drugs, with $10,837 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Clair's Part D claims by kind of drug, 2024
- Generic105 claims83%
- Brand-name22 claims17%
Dr. Clair'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.
Drug classes CMS tracks in Dr. Clair's Part D claims, 2024
- Antibiotics10%13 of 127 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 112023: 1271055%
Drugs named by CMS: 9 in 2023, 1 in 2022.
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
How Dr. John Madison Clair takes part in Medicare
Dr. Clair accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Madison Clair received $384 in industry payments from 2016 to 2017
CMS Open Payments shows 25 general payments to Dr. Clair from 5 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $180.
General payments to Dr. Clair by program year, 2016 to 2017
Companies that paid Dr. Clair the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Madison Clair graduated from West Virginia School of Osteopathic Medicine
Dr. Clair graduated from West Virginia School of Osteopathic Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Madison Clair'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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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. John Madison Clair
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. John Madison Clair's NPI number?
Dr. John Madison Clair's NPI number is 1427232354. It was assigned on December 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John Madison Clair?
Dr. John Madison Clair is an internist in Trenton, North Dakota. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Madison Clair practice?
Dr. Clair practices at 331 4th Ave E, Trenton, ND 58853. Dr. Clair's primary practice is Trenton Community Clinic in Trenton, North Dakota. Dmand AI also links Dr. Clair to 1 hospital, 3 medical groups and 1 group practice or clinic.
What is Dr. John Madison Clair's medical license number?
Dr. Clair holds North Dakota license 13540, one of the licenses on file in 2 states.
Which states has Dr. John Madison Clair been licensed in?
Dmand AI has state licenses on file for Dr. Clair in North Dakota and Nevada.
Which hospitals is Dr. John Madison Clair affiliated with?
Dr. Clair is affiliated with CHI St. Alexius Health Williston. Dmand AI links Dr. Clair to 1 more hospital.
What medical group is Dr. John Madison Clair part of?
Dr. Clair is linked to Trenton Community Clinic. Dmand AI links Dr. Clair to 3 more medical groups.
Does Dr. John Madison Clair accept Medicare?
Yes. CMS data shows Dr. Clair billed Medicare for 222 services in 2024, and Dr. Clair accepts Medicare assignment.
How many Medicare patients does Dr. John Madison Clair see?
CMS counts 99 Medicare patients who saw Dr. Clair in 2024, with an average age of 75.
What services does Dr. John Madison Clair bill to Medicare?
In 2024, Dr. Clair's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
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Where did Dr. John Madison Clair go to medical school?
Dr. Clair graduated from West Virginia School of Osteopathic Medicine in 2006.
What drugs does Dr. John Madison Clair prescribe most?
In 2023 Medicare Part D data, Dr. Clair's most prescribed drugs by claims were Tamsulosin HCl, Celecoxib and Furosemide.
Has Dr. John Madison Clair received payments from drug or device companies?
CMS Open Payments shows $384 in general payments to Dr. Clair from 5 companies from 2016 to 2017. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. John Madison Clair been practicing?
Dr. Clair graduated from medical school in 2006, 20 years ago.
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