DIEGO MARIN, MD
NPI 1750818746, individual, Waukesha, WI, Psychiatry & Neurology, Psychiatry
- Hours beyond a day in 1 month under one organization, which can be supervisory billing.
- Records needed.
- Medicaid dollars per patient on code 90833 ($189 per patient-month) sit in the top 5% of every provider billing that code.
Hours billed per day
Medicaid billing converted into hours of hands-on care per day. The lower bound counts one unit per claim line and needs no price; the other two divide dollars by a unit price, the conservative one at 1.5 times the price. The clinician on the claim may be a supervisor under state rules, so billing organizations are counted too.
| month | what was found | hours per day, lower bound | hours per day, at price | hours per day, conservative | per working day | patients | billing organizations | codes | paid |
|---|---|---|---|---|---|---|---|---|---|
| Sep 2020 | More hours than a day holds, even counting one unit per claim line | 24.9 | 29.8 | 19.9 | 27.1 | 385 | 1 | 90792 90833 99232 99239 99308 | $55K |
National provider registry
From the CMS NPPES Registry, refreshed daily.
| Name | DIEGO MARIN, MD |
| Type | Individual, sole proprietor |
| Status | Active |
| NPI issued | May 22, 2017, last updated August 28, 2019 |
| Practice location | N19W24400 RIVERWOOD DR STE 350, Waukesha, WI 53188, 917-475-6181 |
| Mailing address | 5 REVERE DR, Northbrook, IL 60062-1566 |
| Specialties | Psychiatry & Neurology, Psychiatry (2084P0800X, license 70972 WI) Psychiatry & Neurology, Psychiatry (2084P0800X, primary, license 150249 IL) |
Procedures billed
The specific codes behind the dollars. Medicaid figures come from T-MSIS (2018 to 2024) and are compared with every other provider billing the same code; Medicare figures come from the 2024 physician and supplier file and compare this provider's submitted charge with what Medicare allowed, against the usual ratio for that code.
| code | what it is | paid | share | per patient-month | typical | rank among providers | |
|---|---|---|---|---|---|---|---|
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | $674K | 48% | $189 | $49 (top 5% from $109) | 99th percentile | |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | $384K | 28% | $132 | $67 (top 5% from $174) | 89th percentile | |
| 90792 | Psychiatric diagnostic evaluation with medical services | $278K | 20% | $142 | $112 (top 5% from $313) | 68th percentile | |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | $21K | 2% | $28 | $14 (top 5% from $58) | 80th percentile | |
| 99239 | Hospital discharge day management, more than 30 minutes | $19K | 1% | $59 | $49 (top 5% from $101) | 63rd percentile | |
| 90838 | Psychotherapy with evaluation and management visit, 1 hour | $17K | 1% | $153 | $87 (top 5% from $222) | 85th percentile | |
| 90785 | Psychiatric services complicated by communication factor | $0 | 0% | $0.00 | $15 (top 5% from $35) | too few months to rank |
| code | what it is | services | beneficiaries | paid | submitted per service | allowed per service | charge to allowed | usual for this code |
|---|---|---|---|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 316 | 48 | $20K | $170 | $81 | 2.1x | 2.6x (90th percentile 4.3x) |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | 267 | 44 | $14K | $140 | $66 | 2.1x | 2.1x (90th percentile 3.5x) |
| 90792 | Psychiatric diagnostic evaluation with medical services | 75 | 59 | $10K | $330 | $173 | 1.9x | 2.2x (90th percentile 3.9x) |
| 90838 | Psychotherapy with evaluation and management visit, 1 hour | 48 | 11 | $4K | $258 | $110 | 2.3x | 1.8x (90th percentile 3.1x) |
A submitted charge many times the allowed amount is common and lawful; it matters when it is far above what other providers submit for the same code.
In this area
15 providers in Waukesha County, WI carry an indicator in the public record, with $2.4M at stake between them. The most common is part of a provider network, on 10 of them, followed by more hours than a day holds on 4. 1 is tier 1: documented action, then payment.
| tier | provider | at stake | why |
|---|---|---|---|
| 1 | KESTREL MEDICAL LLC Oconomowoc, WI, ranked 530 | $0 |
|
| 3 | COMMONHEART, INC. Waukesha, WI, ranked 1136 | $534K |
|
| 3 | COMMONHEART, INC. Waukesha, WI, ranked 1406 | $59K |
|
| 3 | CCC OF PEWAUKEE LLC Waukesha, WI, ranked 1529 | $10K |
|
| 3 | ARIA OF BROOKFIELD LLC Brookfield, WI, ranked 1630 | $2K |
|
| 3 | LINDENGROVE COMMUNITIES LLC Mukwonago, WI, ranked 2594 | $0 |
|
| 3 | ARIA OF WAUKESHA LLC Waukesha, WI, ranked 3873 | $0 |
|
| 3 | LINDENGROVE COMMUNITIES LLC Menomonee Falls, WI, ranked 4500 | $0 |
|
Recent enforcement in WI
All releasesDepartment of Justice and HHS-OIG releases for this state, newest first. Each opens in a new tab.
Referral packet
The packet is a draft for a reviewer. It reads every public record behind this case, states what the records show with a citation for each finding, names the regulation each finding relates to, and lists the ordinary explanations to rule out first. It never asserts intent.