Christopher D Knudsen, DO - Medicare Gastroenterology in Springfield, MO

Christopher D Knudsen, DO is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Springfield, Missouri. He graduated from medical school in 2009 and has 15 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Mercy Clinic Springfield Communities and his current practice location is 2115 S Fremont Ave, Suite 3300, Springfield, Missouri. You can reach out to his office (for appointments etc.) via phone at (417) 820-5200.

Christopher D Knudsen is licensed to practice in Missouri (license number 2015021892) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1124258777.

Contact Information

Christopher D Knudsen, DO
2115 S Fremont Ave, Suite 3300,
Springfield, MO 65804-2239
(417) 820-5200
(417) 820-5220

Map and Direction




Physician's Profile

Full NameChristopher D Knudsen
GenderMale
SpecialityGastroenterology
Experience15 Years
Location2115 S Fremont Ave, Springfield, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Christopher D Knudsen graduated from medical school in 2009
  NPI Data:
  • NPI Number: 1124258777
  • Provider Enumeration Date: 07/16/2009
  • Last Update Date: 11/02/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 1153519004
  • Enrollment ID: I20150819006545

Medical Identifiers

Medical identifiers for Christopher D Knudsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124258777NPI-NPPES
1124258777MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine DO.1164 (Alabama)Secondary
207RG0100XInternal Medicine - Gastroenterology 2015021892 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital SpringfieldSpringfield, MOHospital
Mercy Hospital LebanonLebanon, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Springfield Communities7416865845933

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Christopher D Knudsen allows following entities to bill medicare on his behalf.
Entity NameMercy Clinic Springfield Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245277631
PECOS PAC ID: 7416865845
Enrollment ID: O20031104000060
Entity NameMercy Clinic Springfield Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972771657
PECOS PAC ID: 7416865845
Enrollment ID: O20031218000354

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Christopher D Knudsen is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Christopher D Knudsen, DO
Po Box 505164,
Saint Louis, MO 63150-5164

Ph: (417) 829-4620
Christopher D Knudsen, DO
2115 S Fremont Ave, Suite 3300,
Springfield, MO 65804-2239

Ph: (417) 820-5200

Reviews and Comments


Internal Medicine Doctors in Springfield, MO

Dr. Mark H. Grimm, MD
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Practice Location: 3231 S National Ave, Springfield, MO 65807
Phone: 417-888-5696    Fax: 417-888-6711
Dr. Sridevi Durga, M.D.
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Practice Location: 3800 S National Ave, Suite 400, Springfield, MO 65807
Phone: 417-875-2633    Fax: 417-875-3295
Bradley D Wiley, MD
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Practice Location: 1001 E Primrose St, Springfield, MO 65807
Phone: 417-875-3000    Fax: 417-875-3051
Walter S. Trombold, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 6044 S Overlook Trl, Springfield, MO 65810
Phone: 417-771-5778    
Ghulam Jeelani Siddiqui, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 2115 S Fremont Ave, Suite 3300, Springfield, MO 65804
Phone: 417-820-5200    Fax: 417-820-5220
Danny R Penick, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3801 S National Ave, Springfield, MO 65807
Phone: 417-269-0000    
Dr. Anne Marsh Egbert, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 4630 W Farm Road 82, Springfield, MO 65803
Phone: 417-522-5551    Fax: 417-722-0001

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.