Riermaier, Michael

Riermaier, Michael was paid $2.38M by Medicaid between Jan 2018 and Nov 2024, across 14 billing codes. Its largest line is 59409, Vaginal delivery only (with or without episiotomy and/or forceps) — 73% of everything it billed.

33Billing provider infoRIERMAIER, MICHAEL
ELGIN, IL 60123

33aNPI1376650135assigned 08/25/2006

33bProvider typeObstetrics Physician

28Total paid$2.38M

24GClaims15,473

24DCodes billed14

24AFirst – last monthJan 2018 – Nov 2024

Compared with peers

Next to other Obstetrics Physician providers in Illinois

Rank by total paid#1 of 26

Median peer was paid$55K

This provider vs. median43×

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	1,587	$219K
2019	1,945	$369K
2020	1,864	$448K
2021	1,705	$295K
2022	1,825	$316K
2023	3,803	$382K
2024incomplete	2,744	$352K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
59409	Vaginal delivery only (with or without episiotomy and/or forceps)	73%	1,853	1,772	$1.75M
0502F		17%	7,567	4,626	$406K
99212	Office or other outpatient visit for the evaluation and management of an established patient, straightforward	5.8%	1,466	793	$138K
59410		1.1%	29	29	$27K
H1000	Prenatal care, at-risk assessment	1.1%	1,790	1,532	$26K
99395	Periodic comprehensive preventive medicine reevaluation, established patient, 18-39 years	<1%	132	127	$11K
59430		<1%	86	66	$8K
81002		<1%	2,276	1,041	$6K
0500F		<1%	55	54	$4K
99203	Doctor's office visit, new patient (routine)Office or other outpatient visit for the evaluation and management of a new patient, low complexity	<1%	34	33	$2K
99213	Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity	<1%	32	28	$2K
59025	Fetal non-stress test	<1%	40	25	$1K

2 more codes

96372	Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular	<1%	99	$960.86
76805	Ultrasound, pregnant uterus, real time with image documentation, fetal and maternal evaluation	<1%	14	$862.80

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.