NPPES file of Aug 9, 2026

Katharine Coplin Messer, PA-C

Physician Assistant · Spartanburg, SC

Katharine Coplin Messer, PA-C is a physician assistant with a practice address in Spartanburg, South Carolina, and NPI 1356225080, issued on Aug 5, 2025. Check the license (South Carolina 6188, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356225080
Name
Katharine Messer
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
6188 SC
Self-reported in NPPES; status is on the state search
Practice location
101 E Wood St, Spartanburg, SC 29303
Phone
(864) 560-7025
Enumerated
Aug 5, 2025
Record last updated
Apr 22, 2026
Fax
(864) 560-7388
Medicare enrollment
Enrolled (PECOS I20260211002018); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 101 E Wood St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michelle Abel, PNP-PCNurse Practitioner1639977762
  2. Dustin Abele, M.D.Family Medicine Physician1851771349
  3. Elizabeth Abell, MDInfectious Disease Physician1083623805
  4. Martine Abouchabki, PHARMDPharmacist1952299356
  5. Samuel Adams, MDInternal Medicine Physician1568026607
  6. Samuel Adediran, M.D.,Hematology & Oncology Physician1811259096

Verify Katharine Messer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 6188    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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One hospital affiliation

  1. Spartanburg Medical CenterSpartanburg, SC · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

124 physician assistant records list a practice address in Spartanburg

They are 124 of the 3,328 NPPES records with a practice address in Spartanburg, and 2,294 physician assistant records in South Carolina.

All 124 in Spartanburg → All 2,294 in South Carolina → Every provider in Spartanburg →

Other physician assistant records in South Carolina

  1. Linda Aanonsen, PAConway, SC1184822777
  2. Rana Abedini, PA-CGreenville, SC1780154807
  3. Michael Adam, PANorth Augusta, SC1699884957
  4. Taylor AdamCharleston, SC1902576929
  5. Amber AdamsMyrtle Beach, SC1447101092
  6. Chandler Adams, PA-CGreenwood, SC1205465820
  7. Kaylee Adams, PA-CSeneca, SC1942943246
  8. Nicholas AdamsonsN Charleston, SC1740929637
  9. Ashley AdasczikCharleston, SC1750265294
  10. Benjamin Addy, PA-CWest Columbia, SC1831520782

Common questions

What is Katharine Coplin Messer, PA-C's NPI number?

Katharine Coplin Messer, PA-C's National Provider Identifier (NPI) is 1356225080, issued on Aug 5, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Coplin Messer, PA-C located?

The NPPES record lists a practice address at 101 E Wood St, Spartanburg, SC, 29303. Phone: (864) 560-7025. Providers update this record themselves, so call before visiting.

How can I verify Katharine Coplin Messer, PA-C's license?

NPPES lists South Carolina license number 6188, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.