Providers
MICHAEL JOSEPH MULLIN, MD
NPI 1548348592, individual, Greeley, CO, Psychiatry & Neurology, Psychiatry
4
Evidence tier
structure or single-organization volume
- Hours beyond a day in 6 months, but with up to 707 patients a month, which points to a supervising clinician on the claims rather than one person's hours.
- Records needed.
- Medicaid dollars per patient on code 99214 ($8812 per patient-month) sit in the top 5% of every provider billing that code.
score 56 of 100, rank 7454, $5.0M at stake
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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov 2023 | More hours than a day holds at a conservative unit price | 15.0 | 50.0 | 33.3 | 36.5 | 591 | 1 | 90791 90833 90847 90853 99213 99214 H0004 H2011 H2014 T1017 | $187K |
| Jan 2024 | More hours than a day holds at a conservative unit price | 12.2 | 45.4 | 30.3 | 38.4 | 707 | 1 | 90791 90833 90837 90847 90853 99213 99214 H0004 H2011 H2014 T1017 | $158K |
| Feb 2024 | More hours than a day holds at a conservative unit price | 12.4 | 41.0 | 27.3 | 34.7 | 562 | 1 | 90791 90833 90847 90853 99213 99214 H0004 H2011 H2014 T1017 | $133K |
| Apr 2024 | More hours than a day holds at a conservative unit price | 9.7 | 40.1 | 26.7 | 33.7 | 538 | 1 | 90791 90792 90833 90847 90853 99213 99214 H0004 H2014 T1017 | $137K |
| Aug 2024 | More hours than a day holds at a conservative unit price | 8.4 | 47.6 | 31.7 | 35.3 | 516 | 1 | 90791 90847 90853 99213 99214 H0004 H2011 H2014 T1017 | $168K |
| Oct 2024 | More hours than a day holds at a conservative unit price | 11.4 | 51.6 | 34.4 | 35.6 | 622 | 1 | 90791 90834 90837 90847 90853 99213 99214 H0004 H2011 H2014 T1017 | $187K |
National provider registry
From the CMS NPPES Registry, refreshed daily.
| Name | MICHAEL JOSEPH MULLIN, MD |
| Type | Individual |
| Status | Active |
| NPI issued | November 1, 2006, last updated March 15, 2010 |
| Practice location | 1300 N 17TH AVE, Greeley, CO 80631-9584, 970-347-2120 |
| Specialties | Psychiatry & Neurology, Psychiatry (2084P0800X, primary, license A95858 CA) |
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.
Medicaid, largest codes
| code | what it is | paid | share | per patient-month | typical | rank among providers | |
|---|---|---|---|---|---|---|---|
| H0004 | Behavioral health counseling and therapy per 15 minhistory of abuse | $2.8M | 34% | $358 | $174 (top 5% from $559) | 86th percentile | |
| H2036 | Alcohol/drug treatment program per diem | $1.7M | 21% | $9K | $3K (top 5% from $6K) | 98th percentile | |
| 99214 | Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | $589K | 7% | $207 | $60 (top 5% from $133) | 99th percentile | |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | $564K | 7% | $129 | $49 (top 5% from $109) | 97th percentile | |
| T1017 | Targeted case management each 15 min | $409K | 5% | $125 | $167 (top 5% from $808) | 44th percentile | |
| H0005 | Medicaid service code | $291K | 4% | $396 | $129 (top 5% from $479) | 92nd percentile | |
| 90791 | Psychiatric diagnostic evaluation | $285K | 3% | $249 | $105 (top 5% from $228) | 96th percentile | |
| H2014 | Skills training and development per 15 minhistory of abuse | $239K | 3% | $582 | $298 (top 5% from $3K) | 73rd percentile |
In this area
6 providers in Weld County, CO carry an indicator in the public record, with $10.2M at stake between them. The most common is more hours than a day holds, on 5 of them, followed by part of a provider network on 1.
| tier | provider | at stake | why |
|---|---|---|---|
| 3 | CENTER AT CENTERPLACE, LLC Greeley, CO, ranked 4655 | $0 |
|
| 4 | THAD MAKOWSKI Greeley, CO, ranked 7609 | $2.6M |
|
| 4 | NICHOLAS BERGER Longmont, CO, ranked 7758 | $1.4M |
|
| 4 | SARAH POFAHL Greeley, CO, ranked 8421 | $4.7M |
|
| 5 | HEATHER DAIGLE Greeley, CO, ranked 10224 | $598K |
|
| 5 | SARAH WILLIAMSON Greeley, CO, ranked 10584 | $884K |
|
Recent enforcement in CO
All releasesDepartment of Justice and HHS-OIG releases for this state, newest first. Each opens in a new tab.
DOJIndictedJun 23, 2026
Colorado Man Charged In Medicaid Fraud Scheme Connected To Arapahoe County Adult Daycare
Omer offered three $500 kickback payments in exchange for referrals of Medicaid beneficiaries for adult daycare, and $10,000 in other kickback payments described as marketing expenses or office supply, to induce beneficiaries to attend Nadina Adult Daycare Center.
DOJCivil settlementNov 24, 2025
Southern Colorado Hospital and Doctors Agree to Pay $650,000 to Resolve Allegations That They Unlawfully Prescribed Opioids and Other Controlled Substances
Three physicians employed by Mt. San Rafael Hospital allegedly issued invalid prescriptions for controlled substances including opioids not for a legitimate medical purpose or outside the usual course of professional practice, and caused claims for those prescriptions to be submitted to Medicare and other federal health care programs.
DOJCivil settlementDec 3, 2024
$2 Million Resolves Kickback Allegations Relating to Denver Neuromonitoring Company
Assure paid remuneration to surgeons through joint venture companies to induce them to order intraoperative neuromonitoring services, resulting in claims submitted to federally funded healthcare programs.
DOJIndictedSep 24, 2024
Seven People Charged With Over $40 Million In Medicare And Medicaid Fraud
Defendants, through genetic testing laboratories they owned and operated, paid kickbacks and bribes to marketing companies for referrals for medically unnecessary genetic testing, resulting in more than $40 million in false and fraudulent claims paid by Medicare and Colorado Medicaid, and three defendants laundered the proceeds.
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.