NPPES file of Aug 9, 2026

Mark S. Green, PA

Physician Assistant · Lexington, SC

Mark S. Green, PA is a physician assistant with a practice address in Lexington, South Carolina, and NPI 1396736336, issued on Oct 31, 2005. Check the license (South Carolina 560, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396736336
Name
Mark S. Green
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License numbers
560 SC
002321 GA
Self-reported in NPPES; status is on the state search
Practice location
1847 S Lake Dr, Lexington, SC 29073
Phone
(803) 356-8998
Enumerated
Oct 31, 2005
Record last updated
Feb 10, 2025
Medicare enrollment
Enrolled (PECOS I20161208002322); 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 1847 S Lake Dr

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

  1. Kimberly Irwin, APRN, FNPFamily Nurse Practitioner1609382597
  2. Nicole Kappas, FNPNurse Practitioner1629882543
  3. Amanda Mallory, NPFamily Nurse Practitioner1689116055
  4. Ashley McClendon, PA-CPhysician Assistant1528427408
  5. David Morgan, NP-CFamily Nurse Practitioner1710437389
  6. Kaylie StamcoPhysician Assistant1245707942

Verify Mark S. Green 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 560
    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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65% fewer Medicare Part D claims than the average physician assistant in 2024

294 Medicare Part D claims for 182 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Mark Green294
  2. Specialty average830

Most prescribed

  1. Azithromycin38 claims
  2. Prednisone30 claims
  3. Fluticasone Propionate26 claims
  4. Amoxicillin-Clavulanate Potass18 claims
  5. Nitrofurantoin Mono-Macro18 claims
  6. Sulfamethoxazole-Trimethoprim18 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.

  1. Qualityout of 100 · 30% of the final score48.2
  2. Costout of 100 · 30%53.6
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Prisma Health Urgent Care OF South Carolina PCGreer, SC

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

Mark S. Green among 2,294 physician assistant records in South Carolina

Mark S. Green, PA 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1990 · 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).

26 physician assistant records list a practice address in Lexington

They are 26 of the 1,926 NPPES records with a practice address in Lexington, and 2,294 physician assistant records in South Carolina.

The 8 physician assistant records with the nearest ZIP codes

  1. Sylvia Iwenofu, PALexington, SC 290731578806014
  2. Ashley McClendon, PA-CLexington, SC 290731528427408
  3. Kaylie StamcoLexington, SC 290731245707942
  4. Molly Williams, PA-CLexington, SC 290731598536526
  5. Misti Booher, PALexington, SC 290721992572556
  6. Maya BougebrayelLexington, SC 290721144073081
  7. Chelsea BuchananLexington, SC 290721538702931
  8. Grant ConnellLexington, SC 290721760245013

Common questions

What is Mark S. Green, PA's NPI number?

Mark S. Green, PA's National Provider Identifier (NPI) is 1396736336, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark S. Green, PA located?

The NPPES record lists a practice address at 1847 S Lake Dr, Lexington, SC, 29073. Phone: (803) 356-8998. Providers update this record themselves, so call before visiting.

How can I verify Mark S. Green, PA's license?

NPPES lists South Carolina license number 560, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Mark S. Green, PA prescribe under Medicare Part D?

In 2024, Mark S. Green, PA had 294 Medicare Part D claims for 182 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Mark S. Green, PA'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.