NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1447278171 MD
Verify on CMS → Mark Claussen, MD
Surgery Physician in Bemidji, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,778 in Surgery 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
64
Medicare Part D claims · 45 beneficiaries · Surgery Physician avg: 174
MIPS score
82.6/100
▼ 1 pts below national avg 83.5 · Above neutral
What the federal data shows
Mark Claussen, MD reported a CMS MIPS final score of 82.6/100 - below the 83.5 national average - and filed 64 Medicare Part D claims in 2024.
- 82.6/100
- MIPS score · -1 vs avg
- 64
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥36th
- pct among measured MIPS (lower-bound band)
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.
Federal trust snapshot
What official records show about Mark Claussen, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1447278171), first enumerated 07/18/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 64 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 82.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1447278171 · Surgery Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-TRACE · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1447278171
- ENUM-LEGACY 2006
- TAX-MID 37K Surgery Physician
- MIPS-INLINE 82.6/100
- RX-TRACE 64
- BOOK-LIGHT 805 in Minnesota
- PHOTO-FINISH Luis Hernandez · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Claussen · this …
Claussen · this provider
82.6 MIPS pts
- Luis Hernandez ·…
Luis Hernandez
82.6 MIPS pts
- Yi Wang · highest
Yi Wang
82.7 MIPS pts
- Luis Gonzalez · …
Luis Gonzalez
82.7 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Mark Claussen, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
83 ≥ 36th percentile 36% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Mark Claussen, MD sits
This provider among surgery physician peers
Across the 7,271 surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mark Claussen, MD writes more Part D claims than 39% of them and scores higher on MIPS quality than 37% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one surgery physician peer from a representative sample of 60; the gold marker is Mark Claussen, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mark Claussen, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Claussen, MD?
Near national averagePrimary specialty
Surgery Physician
Medicare Part D claims
64 63% vs specialty avg
MIPS final score
82.6/100 0.9 pts vs avg
Specialty distribution in Minnesota
How Surgery Physician compares to other specialties among Minnesota providers
Medicare quality performance, MIPS
Mark Claussen, MD's 2023 MIPS final score plotted against the Surgery Physician national average
- MIPS Final Score
- 82.6/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1447278171 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/18/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
82.6431
Final Score
Measured-score avg: 83.5
88.2148
Quality
51.1439
Cost
99
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Mark Claussen, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Sanford Health OF Northern Minnesota
Bemidji, MN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
64
Total Claims
$1K
Total Drug Cost
45
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 80.867
- Total Day Supply
- 1,290
- Generic Drug Cost
- $665
- Opioid Claims
- 25 (39.1% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.11
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 24 |
| Omeprazole | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Mark Claussen, MD fits within the Surgery Physician landscape nationally.
36,778
Surgery Physician Providers in US
56
States with Surgery Physician
174
Avg Claims per Provider
Mark Claussen, MD's 64 claims are below the specialty average of 174.
Nationwide Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Claussen, both outside Minnesota so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (82.6 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Surgery Physician Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Claussen.
One of 805 Surgery Physician providers enrolled in Minnesota, 5 are shown here.
Dr. Tor Aasheim
M.D.
Minneapolis, MN
Dr. Darren Abbas
M.D.
Rochester, MN
Safwan Abbasi
MBBS
Rochester, MN
Dr. Kamal Abi Mosleh
MD
Rochester, MN
Dr. Assunta Abraham
M.D.
Edina, MN
Compare Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark Claussen, MD's specialty? ▼
Mark Claussen, MD specializes in Surgery Physician and practices in Bemidji, Minnesota. Credentials: MD.
How much does Mark Claussen, MD prescribe under Medicare Part D? ▼
In 2024, Mark Claussen, MD wrote 64 Medicare Part D claims totaling $1K in drug costs for 45 beneficiaries.
What is Mark Claussen, MD's Medicare quality score? ▼
Mark Claussen, MD has a CMS MIPS Final Score of 82.6/100 (Quality: 88.2, Cost: 51.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mark Claussen, MD located? ▼
Mark Claussen, MD is located at 1233 34TH ST NW, Bemidji, MN, 56601. Phone: (218) 333-5283.
What is Mark Claussen, MD's NPI number? ▼
Mark Claussen, MD's National Provider Identifier (NPI) is 1447278171, issued on 07/18/2006.
Does Mark Claussen, MD prescribe opioids? ▼
Yes, Mark Claussen, MD had 25 opioid claims in 2024 with an opioid prescribing rate of 39.1%.
How many Surgery Physician providers are there in the US? ▼
There are 36,778 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 174 Medicare Part D claims per year.
What drugs does Mark Claussen, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark Claussen, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Claussen, MD accept Medicare? ▼
Mark Claussen, MD appears in CMS Medicare data with 64 Part D claims and 45 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Claussen, MD's credentials? ▼
Mark Claussen, MD's NPI is 1447278171 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
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.