AISLYN MARIE NELSON, M.D., Ph.D.

NPI 1154717288, individual, Parker, CO, Dermatology

Evidence tier

informational

score 31 of 100, rank 11123, $732K at stake

National provider registry

From the CMS NPPES Registry, refreshed daily.

Name	AISLYN MARIE NELSON, M.D., Ph.D.
Type	Individual
Status	Active
NPI issued	April 15, 2015, last updated September 12, 2024
Practice location	11960 LIONESS WAY STE 225, Parker, CO 80134-5640, 719-992-0127
Specialties	Dermatology (207N00000X, primary, license 0072201 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

code	what it is	paid	share	per patient-month	typical	rank among providers
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	$562K	42%	$125	$60 (top 5% from $133)	94th percentile
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	$280K	21%	$84	$44 (top 5% from $110)	90th percentile
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	$201K	15%	$163	$95 (top 5% from $171)	93rd percentile
17110	Destruction of skin growth, 1-14 growths	$179K	13%	$110	$70 (top 5% from $141)	85th percentile
99203	New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	$78K	6%	$108	$67 (top 5% from $121)	91st percentile
11200	Removal of skin tag, 1-15 skin tags	$17K	1%	$70	$46 (top 5% from $143)	89th percentile
11900	Injection into skin growth, 1-7 growths	$15K	1%	$57	$39 (top 5% from $156)	85th percentile
11102	Biopsy of related skin growth, first growth	$2K	0%	$105	$58 (top 5% from $111)	too few months to rank

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
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	127	88	$12K	$278	$137	2.0x	2.3x (90th percentile 3.8x)
17110	Destruction of skin growth, 1-14 growths	76	57	$7K	$262	$124	2.1x	2.3x (90th percentile 4.1x)
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	93	82	$5K	$196	$97	2.0x	2.2x (90th percentile 3.8x)
17000	Destruction of precancer skin growth, 1 growth	48	37	$2K	$152	$51	3.0x	3.0x (90th percentile 5.4x)
11102	Biopsy of related skin growth, first growth	24	23	$2K	$234	$103	2.3x	2.7x (90th percentile 5.1x)
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$2K	$359	$176	2.0x	2.4x (90th percentile 3.9x)
17003	Destruction of precancer skin growth, 2-14 growths	139	31	$806	$16	$8	2.1x	3.0x (90th percentile 9.4x)
11200	Removal of skin tag, 1-15 skin tags	11	11	$244	$206	$65	3.2x	3.0x (90th percentile 5.2x)

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

10 providers in Douglas County, CO carry an indicator in the public record, with $11.1M at stake between them. The most common is more hours than a day holds, on 8 of them, followed by paid after a public list action on 1. 1 is tier 1: documented action, then payment.

tier	provider	at stake	why
1	TAMMY SWITZER Parker, CO, ranked 206	$37K	Listed on the CA Medicaid exclusion list since July 7, 2022. Medicaid still paid claims in 16 later months, $37,476 in total.
3	CENTER AT LINCOLN, LLC Parker, CO, ranked 2979	$0	Part of provider network D1-00140, ranked 140 nationally.
4	MATTHEW GRZEGOZEWSKI Lone Tree, CO, ranked 7510	$3.7M	Hours beyond a day in 15 months, but with up to 365 patients a month, which points to a supervising clinician on the claims rather than one person's hours. Records needed. and 1 more
4	JOSEPH LADIKA Highlands Ranch, CO, ranked 7935	$508K	Hours beyond a day in 2 months, but with up to 901 patients a month, which points to a supervising clinician on the claims rather than one person's hours. Records needed. and 1 more
4	NEDA ARAMI Castle Pines, CO, ranked 9710	$19K	Hours beyond a day in 1 month, but with up to 125 patients a month, which points to a supervising clinician on the claims rather than one person's hours. Records needed.
5	ELIZABETH QUAIFE Parker, CO, ranked 10175	$741K	Medicaid dollars per patient on code T1000 ($19142 per patient-month) sit in the top 5% of every provider billing that code.
5	KATIE KOSTELYK Castle Pines, CO, ranked 10534	$2.1M	75% of Medicaid dollars are on codes with a history of abuse.
5	MELANIE MORRIS Highlands Ranch, CO, ranked 10709	$3.9M

All 10 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

Answers come only from the evidence tables, and every sentence cites the record it used.