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- 1233 34Th St Nw, Bemidji, MN 56601
About Dr. Claussen
Based in Bemidji, MN, Mark S. Claussen, MD is listed in the NPI registry under surgery. Mark graduated from University of Minnesota Medical School in 1989. Medicare claims data shows Mark provided 222 services to 164 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope. NPI 1447278171 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (218) 333-5283
- Email not available
Practice Locations
1233 34TH ST NW
Bemidji, MN 56601
Conditions Commonly Evaluated or Treated
Within Surgery (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Breast conditions
Cancer
- Colon cancer
- Esophageal cancer
- Liver cancer
- Neuroendocrine Tumors
- Pancreatic cancer
- Soft-tissue sarcoma
- Stomach cancer
- Thyroid cancer
Colorectal
Digestive
- Abdominal adhesions
- Acid reflux
- Acute pancreatitis
- Bowel obstruction
- Colon polyps
- Diverticulitis
- Gastroparesis
- Peptic ulcer disease
Digestive & blood
Digestive health
- Crohn's disease
- Fecal incontinence
- Perforated bowel
- Severe chronic constipation
- Swallowing difficulties
- Ulcerative colitis
Endocrine
Infections
Lumps & bumps
Lymphatic
Minor surgery
Skin & scars
Skin & soft tissue
Skin cancer
Vascular
Weight & metabolism
Wound care
Wounds
Procedures & services
Most searched procedures
Abdominal
Abdominal surgery
Bariatric
Breast surgery
Cancer
Cancer surgery
Colorectal
- Anal fistula surgery
- Anal Sphincter Repair
- Colon resection
- Hemorrhoid removal
- Ostomy reversal
- Ostomy surgery
- Rectal prolapse repair
- Surgery for chronic anal fissure
Consultations
Diagnostic
Digestive
Digestive health
Endocrine
Infections
Minor surgery
Post-op care
Reconstruction
Skin & soft tissue
- Cyst Removal
- Lipoma removal
- Mole removal
- Pilonidal cyst surgery
- Scar revision surgery
- Skin Tag Removal
Skin cancer
Vascular
Vascular & cancer
Weight loss
Wound care
Wounds
Procedures Most Often Billed to Medicare
222 services · 164 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
20 | More often than most peers in Surgery |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
15 | Less often than most peers in Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
70 | More often than most peers in Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
22 | Less often than most peers in Surgery |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
17 | As often as other peers in Surgery |
| 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 | Less often than most peers in Surgery |
| 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 | Less often than most peers in Surgery |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
16 | Less often than most peers in Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
16 | Less often than most peers in Surgery |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
12 | Less often than most peers in Surgery |
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.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 27 related providers in 4 groups
Other general surgeons in Bemidji 7
Same specialty, same city.
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 7
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 6
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. That is the designation recorded for this NPI in the federal registry, where it is listed as “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. Contact the office directly to confirm availability and scheduling.
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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