Niebla Diaz, Osvaldo

Niebla Diaz, Osvaldo was paid $3.05M by Medicaid between Jan 2018 and Dec 2024, across 3 billing codes. Its largest line is 99284, emergency room visit (serious) — 98% of everything it billed.

33Billing provider infoNIEBLA DIAZ, OSVALDO
GUAYNABO, PR 00969

33aNPI1174550131assigned 06/27/2006

33bProvider typeGeneral Practice Physician

28Total paid$3.05M

24GClaims37,517

24DCodes billed3

24AFirst – last monthJan 2018 – Dec 2024

Compared with peers

Next to other General Practice Physician providers in Puerto Rico

Rank by total paid#1 of 1,195

Median peer was paid$2K

This provider vs. median1,491×

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.

Auditor's notes

Automated statistical signals. Not evidence of fraud — how these are computed.

Single-Code Concentration98% of spending on code 99284 with only 3 total codes billed. Highly concentrated billing profile.

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	149	$8K
2019	51	$500.42
2020	88	$3K
2021	158	$7K
2022	3,682	$223K
2023	10,111	$834K
2024incomplete	23,278	$1.97M

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99284	Emergency room visit (serious)Emergency department visit for the evaluation and management, high severity	98%	33,910	22,281	$2.98M
99283	Emergency room visit (moderate)Emergency department visit for the evaluation and management, moderate severity	1.4%	855	682	$41K
93010	Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only	<1%	2,752	2,276	$27K

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.