Providers

ALISON DIANN BARTON, FNP-C

NPI 1285962332, individual, Littleton, CO, Nurse Practitioner, Family

1
Evidence tier
documented action, then payment
  • Listed on the CA Medicaid exclusion list since February 8, 2023.
  • Medicaid still paid claims in 6 later months, $58,320 in total.
score 95 of 100, rank 176, $58K at stake

Paid after the action

Months in which Medicaid paid claims for this provider after a public action that should have triggered a screening check. This is a record of payments, not a determination that they were improper.

listidentity checkaction datewindow closedmonths paid afterfirstlastpaid after12 months before
CA Medicaid exclusion list
ca medi-cal suspended & ineligible provider list (july 2026)
Exact NPI, name verifiedFeb 8, 2023still open6Mar 2023Aug 2023$58K$2K

National provider registry

From the CMS NPPES Registry, refreshed daily.

NameALISON DIANN BARTON, FNP-C (also ALISON BARTON-VIGIL)
TypeIndividual
StatusActive
NPI issuedDecember 1, 2009, last updated February 7, 2020
Practice location5920 S ESTES ST STE 250, Littleton, CO 80123-8620, 303-973-3529
Specialties
Nurse Practitioner, Family (363LF0000X, primary, license 106095 CO)

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
codewhat it ispaidshareper patient-monthtypicalrank among providers
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more$31K45%$73$44 (top 5% from $110)84th percentile
99395Medicaid service code$7K11%$107$73 (top 5% from $138)too few months to rank
G8431Medicaid service code$7K10%$33$0.00 (top 5% from $31)97th percentile
99203New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more$6K9%$102$67 (top 5% from $121)too few months to rank
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more$5K7%$106$60 (top 5% from $133)too few months to rank
D0190Medicaid service code$4K5%$17$12 (top 5% from $28)79th percentile
99385Medicaid service code$3K4%$115$74 (top 5% from $146)too few months to rank
G8510Medicaid service code$3K4%$12$0.00 (top 5% from $12)94th percentile

In this area

9 providers in Jefferson County, CO carry an indicator in the public record, with $4.9M 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 3. 1 is tier 1: documented action, then payment.

tierproviderat stakewhy
1VEENA MATHAD
Arvada, CO, ranked 248
$19K
  • Listed on the CO Medicaid exclusion list since October 21, 2020.
  • Medicaid still paid claims in 2 later months, $18,989 in total.
3PERSONAL ASSISTANCE SERVICES OF COLORADO, LLC
Lakewood, CO, ranked 1712
$0
  • Part of provider network D1-00115, ranked 115 nationally.
  • 100% of Medicaid dollars are on codes with a history of abuse.
3COVENANT LIVING OF COLORADO
Westminster, CO, ranked 3889
$0
  • Part of provider network D1-00075, ranked 75 nationally.
3ELEVATION HOSPICE OF COLORADO, LLC
Arvada, CO, ranked 7074
$0
  • Part of provider network D1-00137, ranked 137 nationally.
4ERICA JOHNSON
Lakewood, CO, ranked 7311
$1.7M
  • Hours beyond a day in 4 months under one organization, which can be supervisory billing.
  • Records needed.
  • and 2 more
4CHRISTINA MURPHY
Arvada, CO, ranked 8174
$1.2M
  • Hours beyond a day in 4 months under one organization, which can be supervisory billing.
  • Records needed.
  • and 1 more
4MANDY VIGIL
Lakewood, CO, ranked 8186
$998K
  • Hours beyond a day in 1 month under one organization, which can be supervisory billing.
  • Records needed.
  • and 1 more
4BETHANY FERGUSON
Wheat Ridge, CO, ranked 8255
$283K
  • Hours beyond a day in 1 month under one organization, which can be supervisory billing.
  • Records needed.
  • and 1 more
All 9 in CO

Recent enforcement in CO

All releases

Department 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.

Ask this case

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