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Edit this profileAt a glance
- 40 Lewis Bay Rd, Hyannis, MA 02601
About Dr. Loewen
Based in Hyannis, MA, Mark S. Loewen, M.D. is listed in the NPI registry under general surgery. Mark graduated from Rush Medical College of Rush University in 2001. Mark is also listed as specializing in surgery and specialist. Medicare claims data shows Mark provided 411 services to 371 patients. The services billed most often include new patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more, subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, and established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more. NPI 1295747319 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
- (508) 775-0800
- Email not available
Practice Locations
40 LEWIS BAY RD
Hyannis, MA 02601
Conditions Commonly Evaluated or Treated
Within General Surgery 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
Anorectal
Appendix, bowel, and emergency
Gallbladder and biliary
Hernia and abdominal wall
Skin and soft tissue
Abdominal
Abdominal wall
Breast
Colorectal
Digestive
- Acid reflux
- Acute pancreatitis
- Bleeding Stomach Ulcer
- Bowel Fistula
- Gastroparesis
- Swallowing difficulties
Emergency surgery
Endocrine
Gastrointestinal
Hernia
Infections
Lymphatic
Oncology
Procedures & services
Most searched procedures
Bowel and emergency abdominal
- Colon resection
- Exploratory laparoscopy
- Exploratory laparotomy
- Repair of perforated peptic ulcer
- Small-bowel resection
- Surgery for bowel obstruction
- Surgical drainage of abdominal abscess
- Surgical lysis of adhesions
Gallbladder and appendix
Hernia repair
Skin and soft tissue
Abdominal surgery
Abdominal wall
Access and nutrition
Anorectal
- Anal fistula surgery
- Drainage of anal abscess
- Hemorrhoid removal
- Rubber-band ligation of hemorrhoids
- Surgery for chronic anal fissure
Biopsy
Breast surgery
- Axillary lymph-node dissection
- Excisional biopsy of a breast mass
- Mastectomy
- Sentinel lymph-node biopsy
Breast Surgery
Colorectal
Colorectal surgery
Digestive procedures
Endocrine surgery
Gastrointestinal
Hernia surgery
Skin & Soft Tissue
Surgical Oncology
Surgical procedures
Vascular Access
Wound care
Procedures Most Often Billed to Medicare
411 services · 371 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of external hemorrhoids by rubber banding | Procedure | 46221 |
26 | As often as other peers in General Surgery |
| Repair of groin hernia (5 years or older) | Procedure | 49505 |
24 | More often than most peers in General Surgery |
| Removal of gallbladder using an endoscope | Procedure | 47562 |
20 | More often than most peers in General Surgery |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | Procedure | 12032 |
18 | As often as other peers in General Surgery |
| New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more | Office visit | 99202 |
85 | More than most peers in General 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 |
75 | More often than most peers in General Surgery |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
51 | More often than most peers in General Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
37 | As often as other peers in General Surgery |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
36 | More often than most peers in General Surgery |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
15 | Less often than most peers in General 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.
Also at this address 1
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 Hyannis 6
Same specialty, same city.
More connections — 19 related providers in 3 groups
Trained at Rush Medical College of Rush University 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Rush Medical College of Rush University 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of external hemorrhoids by rubber banding 3
Providers in MA who bill this service to Medicare most often.
Common questions
What is Mark S. Loewen's specialty?
Mark S. Loewen is a general surgeon in Hyannis, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “General Surgery”.
NPI registry
Where can I find Mark S. Loewen?
Mark S. Loewen is listed at 40 Lewis Bay Rd, Hyannis, MA 02601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mark S. Loewen?
The number on file is (508) 775-0800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark S. Loewen?
Mark S. Loewen's National Provider Identifier is 1295747319. 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 Mark S. Loewen's education?
Mark S. Loewen attended Rush Medical College of Rush University, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark S. Loewen have?
Mark S. Loewen has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What is Mark S. Loewen known for?
According to Medicare billing data, Mark S. Loewen performs procedures including removal of external hemorrhoids by rubber banding, repair of groin hernia and removal of gallbladder using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark S. Loewen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark S. Loewen. If this is you, claiming it is free.
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