Yamanaka, Mark

Yamanaka, Mark was paid $87K by Medicaid between Dec 2018 and Mar 2022, across 2 billing codes. Its largest line is 99291, Critical care, evaluation and management of the critically ill patient, first 30-74 minutes — 100% of everything it billed.

33Billing provider infoYAMANAKA, MARK
OCEANSIDE, CA 92056

33aNPI1013004852assigned 10/05/2006

33bProvider typeCritical Care Medicine (Internal Medicine) Physician

28Total paid$87K

24GClaims881

24DCodes billed2

24AFirst – last monthDec 2018 – Mar 2022

Compared with peers

Next to other Critical Care Medicine (Internal Medicine) Physician providers in California

Rank by total paid#52 of 136

Median peer was paid$38K

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	61	$7K
2019	151	$13K
2020	65	$3K
2021	356	$34K
2022	248	$30K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99291	Critical care, evaluation and management of the critically ill patient, first 30-74 minutes	100%	843	164	$87K
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	<1%	38	37	$312.50

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.