Sierra Fernandez, Hernan

Sierra Fernandez, Hernan was paid $96K by Medicaid between Jan 2019 and Aug 2024, across 4 billing codes. Its largest line is 99469, Subsequent inpatient neonatal critical care, per day, 28 days or younger — 49% of everything it billed.

33Billing provider infoSIERRA FERNANDEZ, HERNAN
CHICAGO, IL 60612

33aNPI1104074749assigned 09/08/2008

33bProvider typeNeonatal-Perinatal Medicine Physician

28Total paid$96K

24GClaims483

24DCodes billed4

24AFirst – last monthJan 2019 – Aug 2024

Compared with peers

Next to other Neonatal-Perinatal Medicine Physician providers in Illinois

Rank by total paid#45 of 148

Median peer was paid$48K

This provider vs. median2.0×

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
2019	63	$11K
2020	189	$63K
2021	105	$8K
2023	38	$3K
2024incomplete	88	$11K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99469	Subsequent inpatient neonatal critical care, per day, 28 days or younger	49%	90	25	$47K
99480	Subsequent intensive care, per day, low birth weight infant	42%	291	139	$40K
99479	Subsequent intensive care, per day, very low birth weight infant	7.7%	90	45	$7K
99238	Hospital discharge day management, 30 minutes or less	1.4%	12	12	$1K

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.