Katherine McNeill Knowles, PA-C
Physician Assistant · Charleston, SC
Katherine McNeill Knowles, PA-C is a physician assistant with a practice address in Charleston, South Carolina, and NPI 1932762564, issued on Apr 18, 2019. Check the license (South Carolina 3239, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine McNeill Knowles
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 3239 SC
Self-reported in NPPES; status is on the state search - Practice location
- 316 Calhoun St, Charleston, SC 29401
- Phone
- (843) 724-2010
- Enumerated
- Apr 18, 2019
- Record last updated
- Jan 21, 2023
- Medicaid ID
- 3312PA SC
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,294 in South Carolina → Look up another NPI →
Also registered at 316 Calhoun St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine McNeill Knowles 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 3239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average physician assistant in 2024
69 Medicare Part D claims for 45 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate12 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): 70.1 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).
Katherine McNeill Knowles among 2,294 physician assistant records in South Carolina
Katherine McNeill Knowles, PA-C is one of 2,294 physician assistant records with a practice address in South Carolina. 81% 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 51% of them.
- NPI issued2019 · 51% of these records are older, 43% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2023 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
407 physician assistant records list a practice address in Charleston
They are 407 of the 10,840 NPPES records with a practice address in Charleston, and 2,294 physician assistant records in South Carolina.
All 2,294 in South Carolina → Every provider in Charleston → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Ellen Baldino, P.A.Charleston, SC 294011215173372
- Adam Callahan, PA-CCharleston, SC 294011700038346
- Margaret Courtney, PACharleston, SC 294011851411037
- Karen Drawdy, PA-CCharleston, SC 294011346489580
- William Etheridge, PA-CCharleston, SC 294011467750315
- Deanne Fowler, PA-CCharleston, SC 294011801149752
- Whitney Jeffrey, PA-CCharleston, SC 294011073804183
- Stephen Keen, PA-CCharleston, SC 294011669797049
Common questions
What is Katherine McNeill Knowles, PA-C's NPI number?
Katherine McNeill Knowles, PA-C's National Provider Identifier (NPI) is 1932762564, issued on Apr 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Katherine McNeill Knowles, PA-C located?
The NPPES record lists a practice address at 316 Calhoun St, Charleston, SC, 29401. Phone: (843) 724-2010. Providers update this record themselves, so call before visiting.
How can I verify Katherine McNeill Knowles, PA-C's license?
NPPES lists South Carolina license number 3239, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine McNeill Knowles, PA-C prescribe under Medicare Part D?
In 2024, Katherine McNeill Knowles, PA-C had 69 Medicare Part D claims for 45 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Katherine McNeill Knowles, PA-C's MIPS final score?
The 2023 MIPS final score is 70.1 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.