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Edit this profileListed in the NPI registry as a physician assistant, Andrew M. Williamson practices in Lenexa, KS. Andrew graduated from University of Missouri, Kansas City, School of Medicine in 2022. Medicare claims data shows Andrew provided 55 services to 53 patients. The services billed most often include bypass of stomach using an endoscope and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1073104493 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
23401 PRAIRIE STAR PKWY STE B-300
Lenexa, KS 66227
55 services · 53 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Bypass of stomach using an endoscope | Procedure | 43644 |
30 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
25 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Andrew M. Williamson is a physician assistant in Lenexa, KS. That is the designation recorded for this NPI in the federal registry.
NPI registry
Andrew M. Williamson is listed at 23401 Prairie Star Pkwy Ste B-300, Lenexa, KS 66227. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (913) 677-6319. Contact the office directly to confirm availability and scheduling.
NPI registry
Andrew M. Williamson's National Provider Identifier is 1073104493. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Andrew M. Williamson attended University of Missouri, Kansas City, School of Medicine, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
Andrew M. Williamson has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Andrew M. Williamson performs procedures including bypass of stomach using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Andrew M. Williamson. If this is you, claiming it is free.
Guide.md
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