Physician Profile
Margaret Riesenberg-Karges, MD
Unclaimed ProfileAbout Dr. Riesenberg-Karges
Margaret Riesenberg-Karges, MD is a healthcare provider in Tucson, AZ specializing in general surgery. Margaret trained at Saint Louis University School of Medicine, graduating in 2009. Margaret is also listed as specializing in surgery. Medicare claims data shows Margaret provided 311 services to 282 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1235371725.
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
- (520) 638-8311
- Email not available
Practice Locations
6879 N ORACLE RD STE 133
Tucson, AZ 85704
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
311 services · 282 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Repair of groin hernia using an endoscope | Procedure | 49650 |
30 | More often than most peers in General Surgery |
| Removal of gallbladder with x-ray study of bile ducts using an endoscope | Procedure | 47563 |
14 | As often as other peers in General Surgery |
| Insertion of central venous tube with port (5 years or older) | Procedure | 36561 |
13 | Less often than most peers in General Surgery |
| Fluoroscopic guidance for insertion or removal of central vein access device | Imaging | 77001 |
13 | Less often than most peers in General Surgery |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
13 | Less often than most peers in General Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
64 | More often than most peers in General Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
57 | More often than most peers in General 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 |
38 | More often than most peers in General Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
28 | As often as other peers in General Surgery |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
22 | As often as other 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.
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 Tucson 8
Same specialty, same city.
Trained at Saint Louis University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2009 at Saint Louis University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Repair of groin hernia using an endoscope 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What is Dr. Riesenberg-Karges's specialty?
Dr. Riesenberg-Karges is a general surgeon in Tucson, AZ. 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 Dr. Riesenberg-Karges?
Dr. Riesenberg-Karges is listed at 6879 N Oracle Rd Ste 133, Tucson, AZ 85704. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Riesenberg-Karges?
The number on file is (520) 638-8311. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Riesenberg-Karges?
Dr. Riesenberg-Karges's National Provider Identifier is 1235371725. 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. Riesenberg-Karges's medical education?
Dr. Riesenberg-Karges attended Saint Louis University School of Medicine, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Riesenberg-Karges have?
Dr. Riesenberg-Karges has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Riesenberg-Karges known for?
According to Medicare billing data, Dr. Riesenberg-Karges performs procedures including repair of groin hernia using an endoscope, removal of gallbladder with x-ray study of bile ducts using an endoscope and insertion of central venous tube with port; reads or performs imaging such as fluoroscopic guidance for insertion or removal of central vein access device and ultrasonic guidance for blood vessel access, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Riesenberg-Karges's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Riesenberg-Karges. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.