Physician Profile
Unclaimed ProfileAbout CLAUSSEN
Based in Bemidji, MN, Mark S Claussen, MD is listed in the NPI registry under general surgery. Mark graduated from University of Minnesota Medical School in 1989. Mark is also listed as specializing in surgery. Medicare claims data shows Mark provided 222 services to 164 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (218) 333-5283
- Email not available
Practice Locations
1233 34TH ST NW
Bemidji, MN 56601
Procedures Most Often Billed to Medicare
222 services · 164 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
20 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
15 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
70 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
22 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
17 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
17 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
17 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
16 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
16 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other general surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other general surgeons in Bemidji 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Minnesota Medical School 7
Other providers in the same specialty who trained at the same institution.
Class of 1989 at University of Minnesota Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in MN who bill this service to Medicare most often.
Common questions
What is Dr. Claussen's specialty?
Dr. Claussen is a general surgeon in Bemidji, MN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where can I find Dr. Claussen?
Dr. Claussen is listed at 1233 34TH ST NW, Bemidji, MN 56601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Claussen?
The number on file is (218) 333-5283. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Claussen?
Dr. Claussen's National Provider Identifier is 1447278171. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Claussen's medical education?
Dr. Claussen attended University of Minnesota Medical School, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Claussen have?
Dr. Claussen has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Claussen known for?
According to Medicare billing data, Dr. Claussen performs procedures including diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Claussen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Claussen. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.