NPPES file of Aug 9, 2026

Mark Poitras, PA-C

Physician Assistant · Greenville, SC

Mark Poitras, PA-C is a physician assistant with a practice address in Greenville, South Carolina, and NPI 1164151395, issued on Jun 4, 2022. Check the license (South Carolina 5659, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164151395
Name
Mark Poitras
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
5659 SC
122837 IA
Self-reported in NPPES; status is on the state search
Practice location
890 W Faris RD Ste 580, Greenville, SC 29605
Phone
(864) 455-7874
Enumerated
Jun 4, 2022
Record last updated
Feb 27, 2025
Fax
(864) 455-8933
Medicare enrollment
Enrolled (PECOS I20250314000100); 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 890 W Faris RD Ste 580

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

  1. Annelise BrechtingPhysician Assistant1326741323
  2. Margret CallahanAcute Care Nurse Practitioner1144195892
  3. Sean Callahan, M.D.Pulmonary Disease Physician1043505670
  4. Lea CallcottAcute Care Nurse Practitioner1912874157
  5. Saradamani Chinnaswamy, APRN (AGACNP-BC)Acute Care Nurse Practitioner1821545559
  6. Chelsea Colombo, ACNPAcute Care Clinical Nurse Specialist1629323654

Verify Mark Poitras 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 5659
    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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Industry payments in 2024: $25.78

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Poitras$25.78
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Prisma Health University Medical GroupDuncan, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Poitras among 2,294 physician assistant records in South Carolina

Mark Poitras, 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 2022, is newer than 69% of them.

  • NPI issued2022 · 69% of these records are older, 24% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2022 · median 2019 among the 1,516 with a school on file
  • Record last updated2025 · 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).

305 physician assistant records list a practice address in Greenville

They are 305 of the 10,264 NPPES records with a practice address in Greenville, and 2,294 physician assistant records in South Carolina.

The 8 physician assistant records with the nearest ZIP codes

  1. Katherine Anderson, PAGreenville, SC 296051043262983
  2. Kristi Carlson, PAGreenville, SC 296051265418297
  3. Paul Carroll, PA-CGreenville, SC 296051932186434
  4. Allyson Cook, PA-CGreenville, SC 296051013965094
  5. Elaine Fuller, PAGreenville, SC 296051932148970
  6. David Goldsmith, PAGreenville, SC 296051659325934
  7. Shea Harrelson, PAGreenville, SC 296051306822325
  8. Lisa Haselden, PA-CGreenville, SC 296051003867789

Common questions

What is Mark Poitras, PA-C's NPI number?

Mark Poitras, PA-C's National Provider Identifier (NPI) is 1164151395, issued on Jun 4, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Mark Poitras, PA-C located?

The NPPES record lists a practice address at 890 W Faris RD Ste 580, Greenville, SC, 29605. Phone: (864) 455-7874. Providers update this record themselves, so call before visiting.

How can I verify Mark Poitras, PA-C's license?

NPPES lists South Carolina license number 5659, 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.

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.