Williamson, Katherine

Williamson, Katherine was paid $5K by Medicaid between Jan 2018 and Aug 2022, across 8 billing codes. Its largest line is 96151, — 49% of everything it billed.

33Billing provider infoWILLIAMSON, KATHERINE
LAKE FOREST, CA 92630

33aNPI1982916375assigned 07/14/2010

33bProvider typePediatrics Physician

28Total paid$5K

24GClaims635

24DCodes billed8

24AFirst – last monthJan 2018 – Aug 2022

Compared with peers

Next to other Pediatrics Physician providers in California

Rank by total paid#902 of 1,490

Median peer was paid$15K

This provider vs. median0.3×

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	224	$2K
2019	246	$2K
2020	112	$744.00
2021	13	$164.00
2022	40	$183.21

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
96151		49%	115	115	$2K
96156		19%	71	71	$905.30
99214	Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity	14%	129	118	$664.78
92551		6.6%	24	24	$315.84
90686		5.9%	31	31	$278.49
G9920	Screening performed and negative	3.0%	54	54	$145.00
99213	Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity	2.2%	168	159	$102.54
90460	Immunization administration through 18 years of age via any route, first or only component	0%	43	25	$0.00

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.