Mast, John

Mast, John was paid $91K by Medicaid between Nov 2021 and Nov 2024, across 5 billing codes. Its largest line is 99233, hospital visit by a doctor, follow-up day (complex) — 40% of everything it billed.

33Billing provider infoMAST, JOHN
AURORA, IL 60504

33aNPI1811488646assigned 05/29/2018

33bProvider typeHospitalist Physician

28Total paid$91K

24GClaims1,822

24DCodes billed5

24AFirst – last monthNov 2021 – Nov 2024

Compared with peers

Next to other Hospitalist Physician providers in Illinois

Rank by total paid#69 of 514

Median peer was paid$19K

This provider vs. median4.8×

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
2021	83	$4K
2022	347	$14K
2023	684	$32K
2024incomplete	708	$41K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99233	Hospital visit by a doctor, follow-up day (complex)Prolong inpt eval add15 m	40%	876	307	$36K
99232	Hospital visit by a doctor, follow-up daySubsequent hospital care, per day, moderate complexity	22%	521	288	$20K
99222	Initial hospital care, per day, moderate complexity	18%	214	201	$17K
99223	Prolong inpt eval add15 m	16%	144	140	$15K
99239	Hospital discharge day management, more than 30 minutes	3.4%	67	66	$3K

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.