John Madison Clair, DO
Internal Medicine Physician · Williston, ND
John Madison Clair, DO is an internal medicine physician with a practice address in Williston, North Dakota, and NPI 1427232354, issued on Dec 27, 2007. Check the license (North Dakota 13540, as entered in NPPES) on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Madison Clair
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 13540 ND
DO1452 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1301 15TH Ave W, Williston, ND 58801
- Phone
- (701) 774-7400
- Enumerated
- Dec 27, 2007
- Record last updated
- Jul 21, 2022
- Medicaid ID
- 1463371 ND
- Medicare enrollment
- Enrolled (PECOS I20150320000976); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2006
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 245 in North Dakota → Look up another NPI →
Also registered at 1301 15TH Ave W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Andelin, M.D.Anatomic Pathology & Clinical Pathology Physician1982793386
- Kaleb Barstad, RPHPharmacist1952959868
- Tammy Bearce, L.R.D.Registered Dietitian1356430763
- Teresa BellisPhysical Therapist1053541284
- Nana Oforiwaa Boateng, FNP-CFamily Nurse Practitioner1093219685
- Stacie Bondy, NP-CFamily Nurse Practitioner1982089272
Verify John Madison Clair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of Medicine
Search for license 13540Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
127 Medicare Part D claims for 28 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Mercy Medical CenterWilliston, ND
- Trenton Indian Service AreaTrenton, ND
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Madison Clair among 245 internal medicine physician records in North Dakota
John Madison Clair, DO is one of 245 internal medicine physician records with a practice address in North Dakota. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 54% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2006 · median 2008 among the 129 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Williston
They are 9 of the 611 NPPES records with a practice address in Williston, and 245 internal medicine physician records in North Dakota.
All 245 in North Dakota → Every provider in Williston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Victor Adenuga, M.DWilliston, ND 588011821786807
- Maria Cristina De Souza, M.D.Williston, ND 588011689602393
- Hooria Manzoor, MDWilliston, ND 588011932558285
- Austin McCoy, M.D.Williston, ND 588011508092933
- Cory Miller, MDWilliston, ND 588011598783631
- Bruce Pugatch, MDWilliston, ND 588011700862232
- Garett Rhule, MDWilliston, ND 588011972791259
- George Wilson, MDWilliston, ND 588011396092219
Common questions
What is John Madison Clair, DO's NPI number?
John Madison Clair, DO's National Provider Identifier (NPI) is 1427232354, issued on Dec 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Madison Clair, DO located?
The NPPES record lists a practice address at 1301 15TH Ave W, Williston, ND, 58801. Phone: (701) 774-7400. Providers update this record themselves, so call before visiting.
How can I verify John Madison Clair, DO's license?
NPPES lists North Dakota license number 13540, as entered by the provider. Search the North Dakota Board of Medicine at https://www.ndbom.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Madison Clair, DO prescribe under Medicare Part D?
In 2024, John Madison Clair, DO had 127 Medicare Part D claims for 28 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.