Vandewalker, Mark

Vandewalker, Mark was paid $47K by Medicaid between Jan 2018 and Jul 2020, across 3 billing codes. Its largest line is 95165, Professional services for the supervision of preparation and provision of antigens for allergen immunotherapy, multiple dose vials — 58% of everything it billed.

33Billing provider infoVANDEWALKER, MARK
COLUMBIA, MO 65203

33aNPI1386833358assigned 10/16/2007

33bProvider typeAllergy Physician

28Total paid$47K

24GClaims2,721

24DCodes billed3

24AFirst – last monthJan 2018 – Jul 2020

Compared with peers

Next to other Allergy Physician providers in Missouri

Rank by total paid#3 of 6

Median peer was paid$21K

This provider vs. median2.3×

Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.

Box 24A · Dates of service

Paid by month

Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider

By year, as a table

Year	Claims	Paid
2018	1,292	$23K
2019	987	$19K
2020	442	$6K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
95165	Professional services for the supervision of preparation and provision of antigens for allergen immunotherapy, multiple dose vials	58%	300	266	$27K
95115		37%	2,408	1,048	$17K
95004	Percutaneous tests with allergenic extracts, immediate type reaction	5.4%	13	12	$3K

Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.