Cathy Ann Messer, D.O
Emergency Medical Services (Emergency Medicine) Physician · Spartanburg, SC
Cathy Ann Messer, D.O is an emergency medical services (emergency medicine) physician with a practice address in Spartanburg, South Carolina, and NPI 1376648667, issued on Sep 13, 2006. Check the license (South Carolina 1017, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Cathy Ann Messer
- Credential
- D.O
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- 1017 SC
Self-reported in NPPES; status is on the state search - Practice location
- 151 Peachwood Centre Dr, Spartanburg, SC 29301
- Phone
- (864) 560-9627
- Enumerated
- Sep 13, 2006
- Record last updated
- Aug 1, 2023
- Fax
- (864) 562-5470
- Medicaid IDs
- 010179 SC
5905105 NC - Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 32 in South Carolina → Look up another NPI →
Also registered at 151 Peachwood Centre Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christina Clay, PAPhysician Assistant1184070450
- Bernard Corbett, MDFamily Medicine Physician1205889409
- Margarite Elsey, NPFamily Nurse Practitioner1285396242
- Christopher Henderson, NPFamily Nurse Practitioner1114300845
- Edward Katemba, MDFamily Medicine Physician1811906381
- Candace Malone, NPFamily Nurse Practitioner1023550894
Verify Cathy Ann Messer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 1017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
439 Medicare Part D claims for 247 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.
Most prescribed
- Meloxicam132 claims
- Azithromycin43 claims
- Prednisone36 claims
- Amoxicillin-Clavulanate Potass28 claims
- Cephalexin26 claims
- Fluconazole17 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 MIPS final score for 2023 (Medicare payment program): 96.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $36.07
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 489 providers of this specialty with any payment received $337.59 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.
Cathy Ann Messer among 32 emergency medical services (emergency medicine) physician records in South Carolina
Cathy Ann Messer, D.O is one of 32 emergency medical services (emergency medicine) physician records with a practice address in South Carolina. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.
- NPI issued2006 · 0% of these records are older, 66% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · 31% of these records are
- Record last updated2023 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in South Carolina
There are 32 emergency medical services (emergency medicine) physician records in South Carolina.
All 32 in South Carolina → Every provider in Spartanburg → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- James KingSpartanburg, SC 293031922762939
- Courtney Scism, EMTBoiling Springs, SC 293161497337273
- Mark Mercier, M.D.Columbia, SC 292201548220296
- Caitlin Bernardo, DOCharleston, SC 294251306577549
- Olivia HolodnikCharleston, SC 294251861122798
- Robert Lenoci, MDCharleston, SC 294251881252468
- Toni Manos, M.D.Folly Beach, SC 294391508158296
- Joseph SimmonsSumter, SC 291531164999744
Common questions
What is Cathy Ann Messer, D.O's NPI number?
Cathy Ann Messer, D.O's National Provider Identifier (NPI) is 1376648667, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Ann Messer, D.O located?
The NPPES record lists a practice address at 151 Peachwood Centre Dr, Spartanburg, SC, 29301. Phone: (864) 560-9627. Providers update this record themselves, so call before visiting.
How can I verify Cathy Ann Messer, D.O's license?
NPPES lists South Carolina license number 1017, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cathy Ann Messer, D.O prescribe under Medicare Part D?
In 2024, Cathy Ann Messer, D.O had 439 Medicare Part D claims for 247 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. Part D covers Medicare prescriptions only.
What is Cathy Ann Messer, D.O's MIPS final score?
The 2023 MIPS final score is 96.1 of 100. 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.