2026 NPPES data Family Medicine Physician NPI 1023182110 MD
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Mark Olson, MD

Family Medicine Physician in Williston, North Dakota. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 147,640 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
13K
Medicare Part D claims · 547 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Mark Olson, MD filed 12,996 Medicare Part D claims in 2023 as a Family Medicine Physician in Williston, North Dakota, prescribing 87% generic.

13K
Part D claims, 2023
87%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Mark Olson, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

12,996 Top 2% higher than 98% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

Mark Olson, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Mark Olson, MD?

Quality data not reported

NPI registry status

Active

Issued 11/20/2006

NPI 1023182110

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

12,996 280% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in North Dakota

How Family Medicine Physician compares to other specialties among North Dakota providers

North Dakota providers

Largest specialties in North Dakota (% of in-state providers)

Personal Care Attendant — 7.3%Personal Care Attendant7.3%Case Manager/Care Coordinator — 6.4%Case Manager/Care Coordinator6.4%Physical Therapist — 4.7%Physical Therapist4.7%Speech-Language Pathologist — 4.6%Speech-Language Pathologist4.6%Registered Nurse — 4.2%Registered Nurse4.2%Social Worker — 4.1%Social Worker4.1%Family Medicine Physician — 2.8%Family Medicine Physician2.8%
Largest specialties in North Dakota (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Mark Olson, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1321 W DAKOTA PKWY, Williston, ND, 58801, with a listed phone of (701) 572-7711. NPI 1023182110 was issued on 11/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Olson most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 12,996 prescription claims written by this provider, covering 547 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 3.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1321 W DAKOTA PKWY
Williston, ND 58801

Provider Details

NPI 1023182110
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 11/20/2006

Brand vs generic prescribing mix · Typical

Mark Olson, MD — brand share 13.0%
Family Medicine Physician average

13% brand-name claims vs 87% generic, on 12,996 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

12,996
Total Claims
$1.2M
Total Drug Cost
547
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
21,782
Total Day Supply
633,506
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$944K
Generic Drug Cost
$223K
Opioid Claims
483 (3.7% rate)
Antibiotic Claims
184

Patient Demographics

Average Patient Age
74.4 years
Avg HCC Risk Score
0.95
Gender Split
54% female / 46% male
Age Distribution
<65: 40, 65-74: 261, 75-84: 164, 85+: 82

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Mark Olson, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
781
Omeprazole
480
Levothyroxine Sodium
474
Rosuvastatin Calcium
423
Metoprolol Succinate
414
Losartan Potassium
412
Lisinopril
407
Furosemide
374
Potassium Chloride
360
Hydrochlorothiazide
319

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Medicine Physician Overview

How Mark Olson, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

Mark Olson, MD's 12,996 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in North Dakota

Other clinicians with the same primary specialty enrolled in North Dakota, drawn from the same CMS NPPES roster as Olson.

Compare Family Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the North Dakota medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Mark Olson, MD's specialty?
Mark Olson, MD specializes in Family Medicine Physician and practices in Williston, North Dakota. Credentials: MD.
How much does Mark Olson, MD prescribe under Medicare Part D?
In 2023, Mark Olson, MD wrote 12,996 Medicare Part D claims totaling $1.2M in drug costs for 547 beneficiaries.
Where is Mark Olson, MD located?
Mark Olson, MD is located at 1321 W DAKOTA PKWY, Williston, ND, 58801. Phone: (701) 572-7711.
What is Mark Olson, MD's NPI number?
Mark Olson, MD's National Provider Identifier (NPI) is 1023182110, issued on 11/20/2006.
Does Mark Olson, MD prescribe more brand-name or generic drugs?
Mark Olson, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $944K in brand drug costs.
Does Mark Olson, MD prescribe opioids?
Yes, Mark Olson, MD had 483 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Mark Olson, MD prescribe most often?
Based on 2023 Medicare Part D data, Mark Olson, MD's most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Olson, MD accept Medicare?
Mark Olson, MD appears in CMS Medicare data with 12,996 Part D claims and 547 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Olson, MD's credentials?
Mark Olson, MD's NPI is 1023182110 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.