Joann Kay Williams
Family Nurse Practitioner · Charleston, SC
Joann Kay Williams is a family nurse practitioner with a practice address in Charleston, South Carolina, and NPI 1093235533, issued on Jun 26, 2017. Check the license (South Carolina 26243, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joann Kay Williams
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 26243 SC
5353 MN
Self-reported in NPPES; status is on the state search - Practice location
- 2566 Ashley River RD, Charleston, SC 29414
- Phone
- (866) 389-2727
- Enumerated
- Jun 26, 2017
- Record last updated
- Jul 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20221020002003); 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 2566 Ashley River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alyssa Carneiro, PHARMDPharmacist1861375164
- Christina Delcotto, DNP, FNP-CFamily Nurse Practitioner1861873143
- Caleb DoakPharmacist1639902893
- Magen Hamil, ARNPFamily Nurse Practitioner1811511603
- Mackenzie HesterPharmacist1578437430
Verify Joann Kay Williams 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 26243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average family nurse practitioner in 2024
292 Medicare Part D claims for 206 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass49 claims
- Azithromycin25 claims
- Amoxicillin23 claims
- Albuterol Sulfate Hfa22 claims
- Nitrofurantoin Mono-Macro21 claims
- Paxlovid18 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $124.21
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Minuteclinic Diagnostic South Carolina LLCNorth Myrtle Beach, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joann Kay Williams among 4,320 family nurse practitioner records in South Carolina
Joann Kay Williams 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 2017, is newer than 41% of them.
- NPI issued2017 · 41% of these records are older, 52% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2008 · median 2018 among the 2,643 with a school on file
- Record last updated2025 · 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).
320 family nurse practitioner records list a practice address in Charleston
They are 320 of the 10,840 NPPES records with a practice address in Charleston, and 4,320 family nurse practitioner records in South Carolina.
All 4,320 in South Carolina → Every provider in Charleston → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Jocarol Ayer, RN-CCharleston, SC 294141326025685
- Linda Baer, APRNCharleston, SC 294141821255811
- Deborah Damaskos, NP-CCharleston, SC 294141972884070
- Lori Edgar, MSN FNP-BCCharleston, SC 294141154307189
- Susan Frickman, APRNCharleston, SC 294141225375090
- Shari Hulbert, MSN, FNPCharleston, SC 294141235114455
- Melissa May, FNPCharleston, SC 294141629302047
- Emily Mayer, DNP, FNP-CCharleston, SC 294141558787275
Common questions
What is Joann Kay Williams's NPI number?
Joann Kay Williams's National Provider Identifier (NPI) is 1093235533, issued on Jun 26, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Joann Kay Williams located?
The NPPES record lists a practice address at 2566 Ashley River RD, Charleston, SC, 29414. Phone: (866) 389-2727. Providers update this record themselves, so call before visiting.
How can I verify Joann Kay Williams's license?
NPPES lists South Carolina license number 26243, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Joann Kay Williams prescribe under Medicare Part D?
In 2024, Joann Kay Williams had 292 Medicare Part D claims for 206 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Joann Kay Williams's MIPS final score?
The 2023 MIPS final score is 84.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.