William Worrall Mayo, APRN
Family Nurse Practitioner · Clemson, SC
William Worrall Mayo, APRN is a family nurse practitioner with a practice address in Clemson, South Carolina, and NPI 1558817809, issued on Aug 28, 2016. Check the license (South Carolina 20201, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Worrall Mayo
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 20201 SC
Self-reported in NPPES; status is on the state search - Practice location
- 101 Edwards Hall, Clemson, SC 29634
- Phone
- (864) 656-3076
- Enumerated
- Aug 28, 2016
- Record last updated
- Aug 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (864) 656-1123
- Medicare enrollment
- Enrolled (PECOS I20231109000078); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,320 in South Carolina → Look up another NPI →
Also registered at 101 Edwards Hall
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caitlin Moore, APRNFamily Nurse Practitioner1699336941
- Paula Watt, PHD, APRN-BC, FNPFamily Nurse Practitioner1083785018
- Whitney Williams, NP-CFamily Nurse Practitioner1053794438
Verify William Worrall Mayo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 20201Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,147 Medicare Part D claims for 450 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 184 claims were for opioids.
Most prescribed
- Atorvastatin Calcium185 claims
- Losartan Potassium182 claims
- Hydrochlorothiazide149 claims
- Pantoprazole Sodium123 claims
- Simvastatin122 claims
- Amlodipine Besylate104 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: $1,429.49
83 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 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.
Bills Medicare through one group practice
- James J Caserio MD PAHendersonville, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Worrall Mayo among 4,320 family nurse practitioner records in South Carolina
William Worrall Mayo, APRN is one of 4,320 family nurse practitioner records with a practice address in South Carolina. 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 2016, is newer than 35% of them.
- NPI issued2016 · 35% of these records are older, 59% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2016 · median 2018 among the 2,643 with a school on file
- Record last updated2016 · 39% 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 South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 family nurse practitioner records list a practice address in Clemson
They are 31 of the 369 NPPES records with a practice address in Clemson, and 4,320 family nurse practitioner records in South Carolina.
All 4,320 in South Carolina → Every provider in Clemson → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Stephanie Bagwell, NURSE PRACTITIONERClemson, SC 296341487272928
- Amy Garrison, NPClemson, SC 296341700291168
- Allison Honea, NPClemson, SC 296341245527175
- Cherrish Kyle, NPClemson, SC 296341174974687
- Caitlin Moore, APRNClemson, SC 296341699336941
- Esther Noel, FNPClemson, SC 296341225142961
- Malee Thompson, NPClemson, SC 296341881635365
- Paula Watt, PHD, APRN-BC, FNPClemson, SC 296341083785018
Common questions
What is William Worrall Mayo, APRN's NPI number?
William Worrall Mayo, APRN's National Provider Identifier (NPI) is 1558817809, issued on Aug 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Worrall Mayo, APRN located?
The NPPES record lists a practice address at 101 Edwards Hall, Clemson, SC, 29634. Phone: (864) 656-3076. Providers update this record themselves, so call before visiting.
How can I verify William Worrall Mayo, APRN's license?
NPPES lists South Carolina license number 20201, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does William Worrall Mayo, APRN prescribe under Medicare Part D?
In 2024, William Worrall Mayo, APRN had 4,147 Medicare Part D claims for 450 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.