Mark Lewis Vandewalker, M.D.
Allergy Physician · Columbia, MO
Mark Lewis Vandewalker, M.D. is an allergy physician with a practice address in Columbia, Missouri, and NPI 1386833358, issued on Oct 16, 2007. Check the license (Missouri R2F17, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Mark Lewis Vandewalker
- Credential
- M.D.
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- R2F17 MO
Self-reported in NPPES; status is on the state search - Practice location
- 601 W Nifong Blvd, Columbia, MO 65203
- Phone
- (573) 446-7000
- Enumerated
- Oct 16, 2007
- Record last updated
- Oct 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (573) 445-1000
- Medicare enrollment
- Enrolled (PECOS I20100824000793); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1974
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 22 in Missouri → Look up another NPI →
Also registered at 601 W Nifong Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Clark Arthur, DDSDentist1114087616
- Tiffany Borst, MA, LPCProfessional Counselor1053481291
- Brian Bowles, MED, PHD, LPCProfessional Counselor1457698771
- Sarah Breseke, M.A, LPCProfessional Counselor1386850204
- John CheavensMental Health Counselor1942861034
- Jeremy DukeProfessional Counselor1366630311
Verify Mark Lewis Vandewalker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R2F17Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average allergy physician in 2024
652 Medicare Part D claims for 140 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D.
Most prescribed
- Montelukast Sodium224 claims
- Trelegy Ellipta65 claims
- Epinephrine60 claims
- Levocetirizine Dihydrochloride39 claims
- Albuterol Sulfate Hfa32 claims
- Breztri Aerosphere30 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $408.87
20 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Psf PLLCJefferson City, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Lewis Vandewalker among 22 allergy physician records in Missouri
Mark Lewis Vandewalker, M.D. is one of 22 allergy physician records with a practice address in Missouri. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 68% of them.
- NPI issued2007 · 68% of these records are older, 9% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1974 · median 1988 among the 13 with a school on file
- Record last updated2007 · 95% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in Missouri
There are 22 allergy physician records in Missouri.
All 22 in Missouri → Every provider in Columbia → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- William Stricker, M.D.Columbia, MO 652031902095979
- Sanchayita Tripathy, MDRolla, MO 654011821046020
- Lirio Reyes, MDSpringfield, MO 658041538388061
- Silvia Huebner, M.D.Springfield, MO 658071295711620
- Thanh-Huong Nguyen, MDSaint Joseph, MO 645061366440190
- Lawrence Landwehr, M.D.Warrensburg, MO 640931265599591
- Neelam AggarwalLees Summit, MO 640811265557623
- Jag Aggarwal, M.D.Lees Summit, MO 640811699886549
Common questions
What is Mark Lewis Vandewalker, M.D.'s NPI number?
Mark Lewis Vandewalker, M.D.'s National Provider Identifier (NPI) is 1386833358, issued on Oct 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lewis Vandewalker, M.D. located?
The NPPES record lists a practice address at 601 W Nifong Blvd, Columbia, MO, 65203. Phone: (573) 446-7000. Providers update this record themselves, so call before visiting.
How can I verify Mark Lewis Vandewalker, M.D.'s license?
NPPES lists Missouri license number R2F17, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Lewis Vandewalker, M.D. prescribe under Medicare Part D?
In 2024, Mark Lewis Vandewalker, M.D. had 652 Medicare Part D claims for 140 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.