Mark A. Olson, MD
Family Medicine Physician · Williston, ND
Mark A. Olson, MD is a family medicine physician with a practice address in Williston, North Dakota, and NPI 1023182110, issued on Nov 20, 2006. Check the license (North Dakota 6450, as entered in NPPES) on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark A. Olson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 6450 ND
Self-reported in NPPES; status is on the state search - Practice location
- 1321 W Dakota Pkwy, Williston, ND 58801
- Phone
- (701) 572-7711
- Enumerated
- Nov 20, 2006
- Record last updated
- Apr 29, 2025
- Fax
- (701) 572-2283
- Medicaid ID
- 1451763 ND
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 596 in North Dakota → Look up another NPI →
Also registered at 1321 W Dakota Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Keisha Adams, APRN, FNP-BCPrimary Care Nurse Practitioner1851024640
- Jenna Anderson, RNRegistered Nurse1801678990
- Brittany Bertsch, DOFamily Medicine Physician1457872863
- Cami Bren, WHNP, FNP-CWomen's Health Nurse Practitioner1457664617
- Kaitlyn Burch, FNP-CFamily Nurse Practitioner1972361061
- Maria Cristina De Souza, M.D.Internal Medicine Physician1689602393
Verify Mark A. Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of Medicine
Search for license 6450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average family medicine physician in 2024
10,692 Medicare Part D claims for 575 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 369 claims were for opioids.
Most prescribed
- Atorvastatin Calcium609 claims
- Rosuvastatin Calcium413 claims
- Losartan Potassium372 claims
- Omeprazole365 claims
- Levothyroxine Sodium361 claims
- Metoprolol Succinate355 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.
Mark A. Olson among 596 family medicine physician records in North Dakota
Mark A. Olson, MD 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 fileNo · 51% of these records are
- Record last updated2025 · 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).
11 family medicine physician records list a practice address in Williston
They are 11 of the 611 NPPES records with a practice address in Williston, and 596 family medicine physician records in North Dakota.
All 596 in North Dakota → Every provider in Williston → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Brittany Bertsch, DOWilliston, ND 588011457872863
- William Brunsman, MDWilliston, ND 588011104914530
- William Code, MDWilliston, ND 588011265520605
- Robert Kemp, M.D.Williston, ND 588011114951431
- James Kennedy, MDWilliston, ND 588011225102304
- Lynn Nyquist, MDWilliston, ND 588011457315970
- Ryan Siewert, MDWilliston, ND 588011528355500
- William Small, MDWilliston, ND 588011992793673
Common questions
What is Mark A. Olson, MD's NPI number?
Mark A. Olson, MD's National Provider Identifier (NPI) is 1023182110, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Olson, MD located?
The NPPES record lists a practice address at 1321 W Dakota Pkwy, Williston, ND, 58801. Phone: (701) 572-7711. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Olson, MD's license?
NPPES lists North Dakota license number 6450, 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 Mark A. Olson, MD prescribe under Medicare Part D?
In 2024, Mark A. Olson, MD had 10,692 Medicare Part D claims for 575 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.