JOANN KAY WILLIAMS
NPI 1093235533
Nurse Practitioner - Family in Charleston, SC

Q: What is Joann Williams's NPI number?

The NPI number for Joann Williams is 1093235533. It was assigned to this individual provider in the NPPES registry on June 26, 2017. The provider is also known as Joann Kay Williams Ruppert.

Q: What is Joann Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Joann Williams was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 26, 2017PECOS EnrolledAccepts Medicare Assignment

84.71/100

CMS Quality Rating

2566 ASHLEY RIVER RD, CHARLESTON, SC 29414(866) 389-2727 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 14, 2022, May 13, 2021, Sep 3, 2019 and 3 more (6 updates tracked since 2017).

On this page

About Joann Kay Williams NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOANN KAY WILLIAMS (NPI 1093235533) is an individual family provider in Charleston, South Carolina, licensed in South Carolina (26243) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Hastings, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1093235533

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameJOANN KAY WILLIAMS

Location Address2566 ASHLEY RIVER RDCharleston, SC 29414-4605

Mailing Address2566 Ashley River RdCharleston, SC 29414-4605 · (866) 389-2727

Phone(866) 389-2727

Sole ProprietorNo

Medical School CMSOtherGraduated 2008

Enumeration DateJune 26, 2017

Last NPPES UpdateJuly 24, 20256 updates tracked since enumeration

NPPES CertifiedJuly 24, 2025

✔ NPI 1093235533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

Licenses✔ Licensed in SC · 26243✔ Licensed in MN · 5353

2566 ASHLEY RIVER RD, Charleston, SC 29414

Open in Google Maps ↗

Other Names 1

Former Name (1)Joann Kay Williams Ruppert

Secondary Practice Location 1

Location 11411 Vermillion StHastings, MN 55033-2844 · Phone (866) 389-2727

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Joann Kay Williams is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID42572471

PECOS Enrollment IDI20221020002003

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Joann Williams reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Minuteclinic Diagnostic South Carolina LLC

181 mi

Family

698 FAIRVIEW RD
Simpsonville, SC 29680

Reassigned Medicare billing, South Carolina enrollment
176 clinicians in this Medicare group

NPI 1447420815 (866) 389-2727

Minuteclinic Primary Care South Carolina LLC

181 mi

Family

698 FAIRVIEW RD
Simpsonville, SC 29680

Reassigned Medicare billing, South Carolina enrollment
112 clinicians in this Medicare group

NPI 1548070071 (866) 389-2727

Minuteclinic Video Virtual Care, PLLC

787 mi

Family

1 CVS DR
Woonsocket, RI 02895

Reassigned Medicare billing, South Carolina enrollment
114 clinicians in this Medicare group

NPI 1316402746 (866) 389-2727

Avera Marshall

1,110 mi

Optometrist

1040 3RD AVE
Mountain Lake, MN 56159

Reassigned Medicare billing, Minnesota enrollment
260 clinicians in this Medicare group

NPI 1508177890 (507) 427-2345

Avera Tyler

1,171 mi

Rural Health

240 WILLOW ST
Tyler, MN 56178

Reassigned Medicare billing, Minnesota enrollment
52 clinicians in this Medicare group

NPI 1649223439 (507) 247-5921

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

89 services82 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

38 services38 patients

Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 87426

An immunoassay test for severe acute respiratory syndrome coronavirus is a diagnostic tool. It uses your body's immune response to detect the presence of the virus. It involves taking a sample, usually from your nose or throat, which is then analyzed in a lab for signs of the virus.

26 services26 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

16 services16 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

13 services13 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29414 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$83.18 typical visit price

range $53.57 – $163.84

Typical copayment $20.79 (range $13.39 – $40.96)

Most-billed visit code 99203

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.71/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

77.42

Improvement Activities

Cost

90.44

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KATRINA L JAMISON PHARMD

Pharmacist