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DR. MARK STEPHEN FEDDER MD
NPI 1922009943
Internal Medicine - Gastroenterology in Maryville, IL

Active since August 02, 2005PECOS Enrolled
74.42/100
CMS Quality Rating
6810 STATE ROUTE 162, SUITE 211, MARYVILLE, IL 62062(618) 288-0346(618) 288-0349 Get Directions Write a Review

NPPES record last updated: December 29, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Mark Stephen Fedder Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK STEPHEN FEDDER MD (NPI 1922009943) is an individual gastroenterology provider in Maryville, Illinois, licensed in Illinois (036-067702) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Maryville.

NPPES Registry Identity

NPI1922009943
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MARK STEPHEN FEDDERCredential: MD
Location Address6810 STATE ROUTE 162, SUITE 211Maryville, IL 62062-8501
Mailing Address6810 State Route 162, Suite 211Maryville, IL 62062-8501 · (618) 288-0346 · Fax (618) 288-0349
Phone(618) 288-0346
Fax(618) 288-0349
Sole ProprietorNo
Enumeration DateAugust 2, 2005
Last NPPES UpdateDecember 29, 2020
NPPES CertifiedDecember 29, 2020
✔ NPI 1922009943 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in IL · 036-067702
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
6810 STATE ROUTE 162, Maryville, IL 62062
Open in Google Maps ↗

Secondary Practice Location 1

Location 16812 State Route 162 Ste 204Maryville, IL 62062-8562 · Phone (618) 391-5070 · Fax (618) 288-1872

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Stephen Fedder Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
36 services35 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
23 services23 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
20 services20 patients
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121
Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.
16 services16 patients
Diagnostic exam of large bowel using a flexible endoscope 45378
This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62062 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$131.14 typical visit price
range $56.28 – $173.35
Typical copayment $32.78 (range $14.07 – $43.33)
Most-billed visit code 99204
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.42/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.31
Promoting Interoperability85
Improvement Activities40
Cost56.92

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MSA ALLIANCE, LLC DBA-SOUTHERN ILLINOIS VASCULAR AND VEIN SURGERY
Surgery (Vascular Surgery)
6810 STATE ROUTE 162, SUITE 100
MARYVILLE, IL 62062
Madison County (618) 334-2425
DR. GABRIEL CARDENAS JR. D.P.M.
Podiatrist (Foot & Ankle Surgery)
6810 STATE ROUTE 162, SUITE 20
MARYVILLE, IL 62062
Madison County (618) 288-2835
MICHAEL PETRU CRNA
Nurse Anesthetist, Certified Registered
6810 STATE ROUTE 162, SUITE 215
MARYVILLE, IL 62062
Madison County (618) 288-5711
MICHAEL SOUTHWICK CRNA
Nurse Anesthetist, Certified Registered
6810 STATE ROUTE 162, STE 215
MARYVILLE, IL 62062
Madison County (618) 288-5711
MARK FEDDER, MD, PC
Internal Medicine (Gastroenterology)
6810 STATE ROUTE 162, SUITE 211
MARYVILLE, IL 62062
Madison County (618) 288-0346
JOSEPH HINES CRNA
Nurse Anesthetist, Certified Registered
6810 STATE ROUTE 162, STE 215
MARYVILLE, IL 62062
Madison County (618) 288-5711
DR. JAMES JOSEPH DALLA RIVA M.D.
Obstetrics & Gynecology
6810 STATE ROUTE 162, SUITE 301
MARYVILLE, IL 62062
Madison County (618) 288-5699
MARK SILVEY CRNA
Nurse Anesthetist, Certified Registered
6810 STATE ROUTE 162, SUITE 215
MARYVILLE, IL 62062
Madison County (618) 288-5711

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Fedder's NPI number?

The NPI number for Mark Fedder is 1922009943. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Where is Mark Fedder located?

Mark Fedder practices at 6810 State Route 162 Suite 211, Maryville, IL 62062. The listed phone number is (618) 288-0346.

What is Mark Fedder's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Mark Fedder enrolled in Medicare?

Yes. Mark Fedder is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Fedder was last updated on December 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.