Afton Williamson, PMHNP-BC, FNP-BC
Psychiatric/Mental Health Nurse Practitioner · Littleton, CO
Afton Williamson, PMHNP-BC, FNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Littleton, Colorado, and NPI 1124371182, issued on Oct 16, 2012. Check the license (Colorado APN.0991897-NP, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Afton Williamson
- Credential
- PMHNP-BC, FNP-BC
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- APN.0991897-NP CO
AP60318760 WA
RN60021043 WA
Self-reported in NPPES; status is on the state search - Practice location
- 26 W Dry Creek Cir Ste 710, Littleton, CO 80120
- Phone
- (303) 801-1776
- Enumerated
- Oct 16, 2012
- Record last updated
- Sep 7, 2023
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,336 in Colorado → Look up another NPI →
Also registered at 26 W Dry Creek Cir Ste 710
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katharine Church, NPPsychiatric/Mental Health Nurse Practitioner1144065228
- Grace Foley, RNRegistered Nurse1609523950
- Jadon Webb, MDChild & Adolescent Psychiatry Physician1548490287
Verify Afton Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license APN.0991897-NPCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
123 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Buspirone Hcl24 claims
- Vraylar12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $77.53
1 payment: food and beverage; the largest payer was Celgene Corporation. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Afton Williamson among 1,336 psychiatric/mental health nurse practitioner records in Colorado
Afton Williamson, PMHNP-BC, FNP-BC is one of 1,336 psychiatric/mental health nurse practitioner records with a practice address in Colorado. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 15% of them.
- NPI issued2012 · 15% of these records are older, 81% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2023 · 18% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 psychiatric/mental health nurse practitioner records list a practice address in Littleton
They are 61 of the 3,918 NPPES records with a practice address in Littleton, and 1,336 psychiatric/mental health nurse practitioner records in Colorado.
All 1,336 in Colorado → Every provider in Littleton → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Holly Ellis-Ponomarev, RN, BSN, PMHNP-BCLittleton, CO 801201437500097
- Carla Farris, CFNPLittleton, CO 801201881845881
- Donna KenneyLittleton, CO 801201578707790
- Timberly KlinestiverLittleton, CO 801201245566256
- Ramona Logue, RNLittleton, CO 801201316485030
- Amanda Matz, DNPLittleton, CO 801201346667441
- Chelsie Monroe, APNLittleton, CO 801201104235761
- Esther Okanlawon, NP-CLittleton, CO 801201073917035
Common questions
What is Afton Williamson, PMHNP-BC, FNP-BC's NPI number?
Afton Williamson, PMHNP-BC, FNP-BC's National Provider Identifier (NPI) is 1124371182, issued on Oct 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Afton Williamson, PMHNP-BC, FNP-BC located?
The NPPES record lists a practice address at 26 W Dry Creek Cir Ste 710, Littleton, CO, 80120. Phone: (303) 801-1776. Providers update this record themselves, so call before visiting.
How can I verify Afton Williamson, PMHNP-BC, FNP-BC's license?
NPPES lists Colorado license number APN.0991897-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Afton Williamson, PMHNP-BC, FNP-BC prescribe under Medicare Part D?
In 2024, Afton Williamson, PMHNP-BC, FNP-BC had 123 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.