Karl Viddal, M.D.
Family Medicine Physician · Bismarck, ND
Karl Viddal, M.D. is a family medicine physician with a practice address in Bismarck, North Dakota, and NPI 1083702955, issued on Oct 10, 2006. Check the license (North Dakota RL14184, as entered in NPPES) on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Karl Viddal
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- RL14184 ND
Self-reported in NPPES; status is on the state search - Practice location
- 701 E Rosser Ave, Bismarck, ND 58501
- Phone
- (701) 751-9500
- Enumerated
- Oct 10, 2006
- Record last updated
- Aug 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201228001448); accepts Medicare assignment
- Medical or professional school
- Western States College Of Chiropractic, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 596 in North Dakota → Look up another NPI →
Also registered at 701 E Rosser Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karl Viddal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of Medicine
Search for license RL14184Check 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 family medicine physician in 2024
143 Medicare Part D claims for 47 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Potassium Chloride13 claims
- Benazepril Hcl12 claims
- Cartia Xt12 claims
- Levothyroxine Sodium12 claims
- Mirtazapine12 claims
- Omeprazole12 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 one group practice
- West River Health ServicesHettinger, ND
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl Viddal among 596 family medicine physician records in North Dakota
Karl Viddal, M.D. is one of 596 family medicine physician records with a practice address in North Dakota. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 57% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2003 · median 2007 among the 305 with a school on file
- Record last updated2016 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
116 family medicine physician records list a practice address in Bismarck
They are 116 of the 3,669 NPPES records with a practice address in Bismarck, and 596 family medicine physician records in North Dakota.
All 596 in North Dakota → Every provider in Bismarck → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gary Betting, MDBismarck, ND 585011003844648
- James Bossort, MDBismarck, ND 585011003879545
- John Botsford, MDBismarck, ND 585011639125321
- John Erickstad, MDBismarck, ND 585011457399644
- David Field, MDBismarck, ND 585011598788390
- Jeffrey Hostetter, MDBismarck, ND 585011275561102
- Paul Jondahl, MDBismarck, ND 585011780638981
- Jason Moe, MDBismarck, ND 585011396763975
Common questions
What is Karl Viddal, M.D.'s NPI number?
Karl Viddal, M.D.'s National Provider Identifier (NPI) is 1083702955, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karl Viddal, M.D. located?
The NPPES record lists a practice address at 701 E Rosser Ave, Bismarck, ND, 58501. Phone: (701) 751-9500. Providers update this record themselves, so call before visiting.
How can I verify Karl Viddal, M.D.'s license?
NPPES lists North Dakota license number RL14184, 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 Karl Viddal, M.D. prescribe under Medicare Part D?
In 2024, Karl Viddal, M.D. had 143 Medicare Part D claims for 47 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.