O'Brien Eileen Mellars, FNP
Family Nurse Practitioner · Cheyenne, WY
O'Brien Eileen Mellars, FNP is a family nurse practitioner with a practice address in Cheyenne, Wyoming, and NPI 1174407621, issued on Aug 5, 2025. Check the license (Wyoming 50954, as entered in NPPES) with the Wyoming board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- O'Brien Eileen Mellars
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 50954 WY
Self-reported in NPPES; status is on the state search - Practice location
- 5050 Powderhouse RD, Cheyenne, WY 82009
- Phone
- (307) 634-1311
- Enumerated
- Aug 5, 2025
- Record last updated
- Mar 31, 2026
- Fax
- (307) 432-7546
- Medicare enrollment
- Enrolled (PECOS I20260111000084); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 456 in Wyoming → Look up another NPI →
Also registered at 5050 Powderhouse RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lenis Alvarado-Benitez, MDFamily Medicine Physician1073878930
- Megan Auer, N.P.Family Nurse Practitioner1255771259
- Marian Bursten, MD PHDFamily Medicine Physician1710942339
- Shujun Chen, FNPNurse Practitioner1316397805
- Lillian Devine, NP-CPrimary Care Nurse Practitioner1609461599
- Wanda Frank, P.A.Medical Physician Assistant1578773537
Verify O'Brien Eileen Mellars in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wyoming board licenses this profession
Search for license 50954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Poudre Valley Medical Group LLCCheyenne, WY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
O'Brien Eileen Mellars among 456 family nurse practitioner records in Wyoming
O'Brien Eileen Mellars, FNP is one of 456 family nurse practitioner records with a practice address in Wyoming. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 92% of them.
- NPI issued2025 · 92% of these records are older, 2% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2023 · median 2018 among the 290 with a school on file
- Record last updated2026 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
113 family nurse practitioner records list a practice address in Cheyenne
They are 113 of the 2,782 NPPES records with a practice address in Cheyenne, and 456 family nurse practitioner records in Wyoming.
All 456 in Wyoming → Every provider in Cheyenne → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Megan Auer, N.P.Cheyenne, WY 820091255771259
- Jennifer Fryman, FNPCCheyenne, WY 820091417020900
- Stevana Gosbee, NP-CCheyenne, WY 820091487187324
- Linden Gray, MSN, FNP-CCheyenne, WY 820091912477506
- Traci Jones, FNP-CCheyenne, WY 820091538447487
- Sunflower Kaste, APRN, FNP-CCheyenne, WY 820091376891226
- Kristine Martino, APRNCheyenne, WY 820091700134327
- Samantha Newton, APRNCheyenne, WY 820091801457809
Common questions
What is O'Brien Eileen Mellars, FNP's NPI number?
O'Brien Eileen Mellars, FNP's National Provider Identifier (NPI) is 1174407621, issued on Aug 5, 2025. An NPI identifies a provider in billing; it is not a license.
Where is O'Brien Eileen Mellars, FNP located?
The NPPES record lists a practice address at 5050 Powderhouse RD, Cheyenne, WY, 82009. Phone: (307) 634-1311. Providers update this record themselves, so call before visiting.
How can I verify O'Brien Eileen Mellars, FNP's license?
NPPES lists Wyoming license number 50954, as entered by the provider. Search the Wyoming board that licenses this profession; the NPPES record confirms identity 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.