Spencer Ollayos
Internal Medicine Physician · Fairmont, WV
Spencer Ollayos is an internal medicine physician with a practice address in Fairmont, West Virginia, and NPI 1184185084, issued on Mar 25, 2019. Check the license (West Virginia 31599, as entered in NPPES) on the West Virginia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Spencer Ollayos
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 31599 WV
Self-reported in NPPES; status is on the state search - Practice location
- 1325 Locust Ave, Fairmont, WV 26554
- Phone
- (045) 347-8103
- Enumerated
- Mar 25, 2019
- Record last updated
- Dec 8, 2022
- Medicare enrollment
- Enrolled (PECOS I20230424002975); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 754 in West Virginia → Look up another NPI →
Also registered at 1325 Locust Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chantal Agnew, PA-CPhysician Assistant1346968195
- Chad Albaugh, M.D.Emergency Medicine Physician1285831719
- Nathan ArvonPhysician Assistant1457032229
- Tyson Bubnar, PA-CPhysician Assistant1720312861
- Rachel CottrillFamily Nurse Practitioner1124816020
- Karrah Fragale, FNP-CFamily Nurse Practitioner1962354621
Verify Spencer Ollayos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWest Virginia Board of Medicine
Search for license 31599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
91 Medicare Part D claims for 42 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- West Virginia University Medical CorporationFairmont, WV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer Ollayos among 754 internal medicine physician records in West Virginia
Spencer Ollayos is one of 754 internal medicine physician records with a practice address in West Virginia. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 77% of them.
- NPI issued2019 · 77% of these records are older, 18% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2019 · median 2010 among the 487 with a school on file
- Record last updated2022 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Fairmont
They are 12 of the 1,582 NPPES records with a practice address in Fairmont, and 754 internal medicine physician records in West Virginia.
All 754 in West Virginia → Every provider in Fairmont → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mackenzie Clarkson, MDFairmont, WV 265541073908034
- Bonnie Diep, MDFairmont, WV 265541164806642
- Ryan Hall, M.D.Fairmont, WV 265541184944241
- Maliha Kamal, MDFairmont, WV 265541558309187
- Sudha Katragadda, MDFairmont, WV 265541295827855
- Eugenio Menez, MDFairmont, WV 265541104867811
- Thomas Miller, MDFairmont, WV 265541285732628
- Cristina Pastuch, M.D.Fairmont, WV 265541871804591
Common questions
What is Spencer Ollayos's NPI number?
Spencer Ollayos's National Provider Identifier (NPI) is 1184185084, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Ollayos located?
The NPPES record lists a practice address at 1325 Locust Ave, Fairmont, WV, 26554. Phone: (045) 347-8103. Providers update this record themselves, so call before visiting.
How can I verify Spencer Ollayos's license?
NPPES lists West Virginia license number 31599, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Spencer Ollayos prescribe under Medicare Part D?
In 2024, Spencer Ollayos had 91 Medicare Part D claims for 42 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.