Katharine Messer, PA-C
NPI 1356225080 · Physician Assistant · Spartanburg, SC
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Messer, PA-C is a Physician Assistant provider in Spartanburg, SC (NPI 1356225080).
Provider details
- NPI number
- 1356225080
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 6188 (SC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-08-05
- Last updated
- 2026-04-22
- Certified
- 2026-04-22
Frequently asked questions
- What is Katharine Messer's NPI number?
- Katharine Messer's National Provider Identifier (NPI) is 1356225080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Messer's specialty?
- Katharine Messer is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katharine Messer located?
- Katharine Messer's practice location on file with NPPES is 101 E Wood St, Spartanburg, SC 29303-3040.
- What is Katharine Messer's phone number?
- The practice phone number listed in the NPPES registry for Katharine Messer is (864) 560-7025.
- Does Katharine Messer accept Medicare?
- Katharine Messer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Messer's NPI active?
- Yes — Katharine Messer's NPI (1356225080) is active in the NPPES registry as of the last update on 2026-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.