Dr Mark Lewis Vandewalker, MD - Medicare Allergy/immunology in Columbia, MO

Dr Mark Lewis Vandewalker, MD is a medicare enrolled "Allergy & Immunology - Allergy" physician in Columbia, Missouri. He went to Washington University School Of Medicine and graduated in 1974 and has 50 years of diverse experience with area of expertise as Allergy/immunology. He is a member of the group practice Psf Pllc and his current practice location is 601 W Nifong Blvd, Suite 2b, Columbia, Missouri. You can reach out to his office (for appointments etc.) via phone at (573) 446-7000.

Dr Mark Lewis Vandewalker is licensed to practice in Missouri (license number R2F17) 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 1386833358.

Contact Information

Dr Mark Lewis Vandewalker, MD
601 W Nifong Blvd, Suite 2b,
Columbia, MO 65203-6804
(573) 446-7000
(573) 445-1000

Map and Direction




Physician's Profile

Full NameDr Mark Lewis Vandewalker
GenderMale
SpecialityAllergy/immunology
Experience50 Years
Location601 W Nifong Blvd, Columbia, 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:
  • Dr Mark Lewis Vandewalker attended and graduated from Washington University School Of Medicine in 1974
  NPI Data:
  • NPI Number: 1386833358
  • Provider Enumeration Date: 10/16/2007
  • Last Update Date: 10/16/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 2062536337
  • Enrollment ID: I20100824000793

Medical Identifiers

Medical identifiers for Dr Mark Lewis Vandewalker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386833358NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207KA0200XAllergy & Immunology - Allergy R2F17 (Missouri)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Psf Pllc155726554397

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. Dr Mark Lewis Vandewalker allows following entities to bill medicare on his behalf.
Entity NameAllergy & Asthma Consultants Of The Ozarks Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457309635
PECOS PAC ID: 5890829113
Enrollment ID: O20100823000024
Entity NamePsf Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881785947
PECOS PAC ID: 1557265543
Enrollment ID: O20220505002158

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. Dr Mark Lewis Vandewalker 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
Dr Mark Lewis Vandewalker, MD
601 W Nifong Blvd, Suite 2b,
Columbia, MO 65203-6804

Ph: (573) 446-7000
Dr Mark Lewis Vandewalker, MD
601 W Nifong Blvd, Suite 2b,
Columbia, MO 65203-6804

Ph: (573) 446-7000

Reviews and Comments


Allergy & Immunology Doctors in Columbia, MO

Laurie B Fowler, MD
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 1506 Chapel Hill Rd, Ste G, Columbia, MO 65203
Phone: 573-234-2600    Fax: 573-234-2622
Dr. William Edward Stricker, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 601 W Nifong Blvd, Suite 2b, Columbia, MO 65203
Phone: 573-446-7000    Fax: 573-445-1000

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.