Providers
ANIWELYN TAN, MSN, APRN, FNP-C
NPI 1477056356, individual, Sherman, TX, Nurse Practitioner, Family
4
Evidence tier
structure or single-organization volume
- Hours beyond a day in 1 month, but with up to 501 patients a month, which points to a supervising clinician on the claims rather than one person's hours.
- Records needed.
score 50 of 100, rank 9591, $77K 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 |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2024 | More hours than a day holds, even counting one unit per claim line | 24.3 | 12.7 | 8.5 | 11.4 | 459 | 1 | 96112 99205 99214 99215 | $40K |
National provider registry
From the CMS NPPES Registry, refreshed daily.
| Name | ANIWELYN TAN, MSN, APRN, FNP-C |
| Type | Individual, sole proprietor |
| Status | Active |
| NPI issued | March 16, 2018, last updated May 8, 2019 |
| Practice location | 425 N HIGHLAND AVE, Sherman, TX 75092-7377, 903-957-0082 |
| Mailing address | 425 N HIGHLAND AVE STE 260, Sherman, TX 75092-7377 |
| Specialties | Family Medicine (207Q00000X, license ap136524 TX) Nurse Practitioner, Family (363LF0000X, primary, license AP136524 TX) |
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 | |
|---|---|---|---|---|---|---|---|
| 99493 | Follow-up psychiatric collaborative care management, subsequent calendar month, first 60 minutes | $237K | 34% | $121 | $78 (top 5% from $138) | 87th percentile | |
| Q3014 | Telehealth originating site facility fee | $110K | 16% | $40 | $21 (top 5% from $84) | 84th percentile | |
| 99494 | Psychiatric collaborative care management per calendar month, each additional 30 minutes | $110K | 16% | $54 | $36 (top 5% from $134) | 75th percentile | |
| 99214 | Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | $84K | 12% | $68 | $60 (top 5% from $133) | 59th percentile | |
| 99215 | Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or morehistory of abuse | $76K | 11% | $115 | $88 (top 5% from $210) | 68th percentile | |
| 96112 | Administration of developmental test, first hour | $42K | 6% | $61 | $114 (top 5% from $506) | 17th percentile | |
| 99205 | New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | $13K | 2% | $107 | $128 (top 5% from $249) | 34th percentile | |
| 99492 | Initial psychiatric collaborative care management, first calendar month, first 70 minutes | $11K | 2% | $126 | $74 (top 5% from $550) | 84th percentile |
Medicare Part B 2024, largest codes
| code | what it is | services | beneficiaries | paid | submitted per service | allowed per service | charge to allowed | usual for this code |
|---|---|---|---|---|---|---|---|---|
| 99487 | Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month | 1,689 | 171 | $121K | $100 | $98 | 1.0x | 1.6x (90th percentile 2.7x) |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | 980 | 176 | $77K | $143 | $103 | 1.4x | 2.2x (90th percentile 4.0x) |
| Q3014 | Telehealth originating site facility fee | 3,336 | 229 | $76K | $113 | $29 | 3.8x | 1.5x (90th percentile 3.1x) |
| 99489 | Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month | 1,689 | 171 | $74K | $150 | $58 | 2.6x | 1.6x (90th percentile 2.8x) |
| 99214 | Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 678 | 160 | $55K | $198 | $103 | 1.9x | 2.3x (90th percentile 3.8x) |
| 96112 | Administration of developmental test, first hour | 60 | 45 | $5K | $347 | $101 | 3.4x | 1.8x (90th percentile 2.5x) |
| 99495 | Transitional care management services for problem of at least moderate complexity | 23 | 19 | $3K | $175 | $166 | 1.1x | 2.1x (90th percentile 3.7x) |
| 96127 | Assessment of emotional or behavioral problems | 285 | 111 | $966 | $20 | $4 | 4.7x | 3.7x (90th percentile 7.2x) |
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
7 providers in Grayson County, TX carry an indicator in the public record, with $214.7M at stake between them. The most common is part of a provider network, on 6 of them, followed by more hours than a day holds on 1.
| tier | provider | at stake | why |
|---|---|---|---|
| 3 | AOC TX, LLC Sherman, TX, ranked 753 | $214.6M |
|
| 3 | CONCORD HOSPICE, LLC Sherman, TX, ranked 1348 | $106K |
|
| 3 | CAPITAL HOMECARE LP Sherman, TX, ranked 3953 | $0 |
|
| 3 | HAMILTON COUNTY HOSPITAL DISTRICT Sherman, TX, ranked 4929 | $0 |
|
| 3 | MSL DENISON LLC Denison, TX, ranked 6216 | $0 |
|
| 3 | SOUTHERN HEARTS HOME HEALTH, LLC Van Alstyne, TX, ranked 6866 | $0 |
|
| 4 | MEHNAZ KHAN Sherman, TX, ranked 9684 | $30K |
|
Recent enforcement in TX
All releasesDepartment of Justice and HHS-OIG releases for this state, newest first. Each opens in a new tab.
DOJCivil settlementAug 26, 2026
Dallas medical clinic to pay $7.5 million to resolve COVID-19 testing overbilling allegations
Aymancare billed the federal government's HRSA Uninsured Program for separate evaluation and management services in addition to COVID-19 specimen collection and testing at pop-up testing sites when no such separate services were performed.
DOJConvictedAug 12, 2026
Scammer pharmacist guilty in $20 million healthcare kickback scheme
Thomas paid over $2 million in kickbacks to the owner of a Houston clinic in exchange for referrals of DOL-OWCP insured patients prescribed high-reimbursement compounded medications, which his pharmacy then billed to DOL-OWCP, receiving more than $20 million in reimbursements.
DOJIndictedJun 24, 2026
U.S. Attorney Announces Major Health Care Fraud Cases in Western District of Texas
Charles is alleged to have received illegal kickbacks for referring patients to San Antonio area hospice companies, causing over $9 million in Medicare claims, while Dr. Duncan settled allegations of billing Medicare and TRICARE for an unapproved amniotic-based product and Trevor's Place settled allegations of submitting inflated TRICARE claims for services not provided.
DOJIndictedJun 23, 2026
Nine charged in SDTX as part of national health care fraud takedown
Nine defendants were indicted in the Southern District of Texas for operating pill mill clinics and a pharmacy that unlawfully distributed controlled substances, billing Medicaid $16 million for mental health services for minors that did not occur, and billing Medicare and TRICARE approximately $906 million for medically unnecessary amniotic wound allografts procured through kickbacks.
DOJChargedJun 23, 2026
Northern District of Texas Charges 13 Health Care Fraudsters for Loss Over $360 Million
Thirteen defendants in the Northern District of Texas were charged in seven cases involving more than $365 million in fraudulent billing to federally-funded programs and other insurers, including laboratory and genetic testing claims procured through kickbacks, transcranial magnetic stimulation treatments billed to TRICARE, medically unnecessary EEG testing, and hospice services never provided.
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.