CHRISTOPHER D. KNUDSEN D.O.
NPI 1124258777
Internal Medicine - Gastroenterology in Springfield, MO

Q: What is Christopher Knudsen's NPI number?

The NPI number for Christopher Knudsen is 1124258777. It was assigned to this individual provider in the NPPES registry on July 16, 2009.

Q: What is Christopher Knudsen's specialty?

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

Active since July 16, 2009PECOS EnrolledAccepts Medicare Assignment

2115 S FREMONT AVE, SUITE 3300, SPRINGFIELD, MO 65804(417) 820-5200(417) 820-5220 Get Directions Write a Review

NPPES record last updated: November 2, 2015. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Christopher D. Knudsen D.o. NPPES

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

CHRISTOPHER D. KNUDSEN D.O. (NPI 1124258777) is an individual gastroenterology provider in Springfield, Missouri, licensed in Missouri (2015021892) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Springfield, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1124258777

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameCHRISTOPHER D. KNUDSENCredential: D.O.

Location Address2115 S FREMONT AVE, SUITE 3300Springfield, MO 65804-2239

Mailing AddressPo Box 505164Saint Louis, MO 63150-5164 · (417) 829-4620 · Fax (417) 829-4316

Phone(417) 820-5200

Fax(417) 820-5220

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateJuly 16, 2009

Last NPPES UpdateNovember 2, 2015

✔ NPI 1124258777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MO · 2015021892

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License DO.1164 (AL)

2115 S FREMONT AVE, Springfield, MO 65804

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Other Identifiers 2

Medicaid1124258777MO

Medicare PIN132680705MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher D. Knudsen D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1153519004

PECOS Enrollment IDI20150819006545

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 15

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.

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

128 services125 patients

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.

108 services107 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

92 services91 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.

82 services82 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

56 services52 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

53 services50 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

42 services40 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

38 services38 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.

33 services33 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.

22 services22 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.

20 services19 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

17 services17 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

15 services15 patients

Imaging of digestive tract done from the inside of the digestive tract 91110

This procedure, known as an endoscopy, involves a small camera being passed into the digestive tract. It helps doctors to see the inside of your digestive system in detail. This can aid in diagnosing conditions or planning treatments. It's generally safe and can provide valuable information.

12 services12 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital Springfield

Acute Care Hospitals · Springfield, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260065

Location1235 E CherokeeSpringfield, MO 65804 · Greene County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 65804 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

$121.96 typical visit price

range $52.28 – $161.24

Typical copayment $30.49 (range $13.07 – $40.31)

Most-billed visit code 99204

Established Patient

$93.24 typical visit price

range $16.30 – $131.05

Typical copayment $23.31 (range $4.07 – $32.76)

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.

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.

HEIDI K CRULL ANP-BC

Nurse Practitioner (Adult Health)

2115 S FREMONT AVE, STE 3300
SPRINGFIELD, MO 65804

Greene County (417) 820-5200

GHULAM JEELANI SIDDIQUI MD

Internal Medicine (Gastroenterology)

2115 S FREMONT AVE, SUITE 3300
SPRINGFIELD, MO 65804

Greene County (417) 820-5200

DR. KEITH W. ELLIS MD

Internal Medicine

2115 S FREMONT AVE, SUITE 2300
SPRINGFIELD, MO 65804

Greene County (417) 820-5600

CHAD D. HOLLAND PA-C

Physician Assistant

2115 S FREMONT AVE, SUITE 5000
SPRINGFIELD, MO 65804

Greene County (417) 820-3960

NATALIE A. BIEKER FNP

Nurse Practitioner (Family)

2115 S FREMONT AVE, STE 4300
SPRINGFIELD, MO 65804

Greene County (417) 829-3911

DR. KIMBERLY D. STOLL MD

Pediatrics

2115 S FREMONT AVE, SUITE 2900
SPRINGFIELD, MO 65804

Greene County (417) 820-3535

KEITH R. ALLEN M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2115 S FREMONT AVE, STE 5000
SPRINGFIELD, MO 65804

Greene County (417) 820-3960

RONALD G JONES MD

Pediatrics

2115 S FREMONT AVE, STE 2900
SPRINGFIELD, MO 65804

Greene County (417) 820-3535

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 Christopher Knudsen's NPI number?

The NPI number for Christopher Knudsen is 1124258777. It was assigned to this individual provider in the NPPES registry on July 16, 2009.

Where is Christopher Knudsen located?

Christopher Knudsen practices at 2115 S Fremont Ave Suite 3300, Springfield, MO 65804. The listed phone number is (417) 820-5200.

What is Christopher Knudsen's specialty?

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

Is Christopher Knudsen enrolled in Medicare?

Yes. Christopher Knudsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Christopher Knudsen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 5 other insurers list Christopher Knudsen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christopher Knudsen affiliated with any hospitals?

According to CMS data, Christopher Knudsen is affiliated with Mercy Hospital Springfield.

When was this NPI record last updated?

The NPPES record for Christopher Knudsen was last updated on November 2, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.