Matthew Asa Mason, M.D.
Gastroenterology Physician · Greenwood, SC
Matthew Asa Mason, M.D. is a gastroenterology physician with a practice address in Greenwood, South Carolina, and NPI 1710272471, issued on Jun 10, 2011. Check the license (South Carolina 33732, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Matthew Asa Mason
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 33732 SC
LL33732 SC
Self-reported in NPPES; status is on the state search - Practice location
- 103 Liner Dr, Greenwood, SC 29646
- Phone
- (864) 227-3636
- Enumerated
- Jun 10, 2011
- Record last updated
- Oct 11, 2022
- Fax
- (864) 227-6116
- Medicare enrollment
- Enrolled (PECOS I20170626000100); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2011
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 303 in South Carolina → Look up another NPI →
Also registered at 103 Liner Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Bachinski, MDGastroenterology Physician1881687093
- Kelly Crawford, APRNFamily Nurse Practitioner1225558588
- Ronald Eslick, CRNACertified Registered Nurse Anesthetist1295715159
- Amy Farmer, NPNurse Practitioner1588383574
- William Gilchrist, MDGastroenterology Physician1346233558
- Bryan Green, MDGastroenterology Physician1861485963
Verify Matthew Asa Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 33732Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average gastroenterology physician in 2024
1,208 Medicare Part D claims for 616 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 12 claims were for opioids.
Most prescribed
- Pantoprazole Sodium418 claims
- Sod Sulf-Potass Sulf-Mag Sulf202 claims
- Gavilyte-G103 claims
- Omeprazole66 claims
- Famotidine53 claims
- Peg-3350 And Electrolytes39 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.
Industry payments in 2024: $1,349.81
93 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- Digestive Disease Group PAGreenwood, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Asa Mason among 303 gastroenterology physician records in South Carolina
Matthew Asa Mason, M.D. is one of 303 gastroenterology physician records with a practice address in South Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 71% of them.
- NPI issued2011 · 71% of these records are older, 24% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2005 among the 217 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in South Carolina
There are 303 gastroenterology physician records in South Carolina.
All 303 in South Carolina → Every provider in Greenwood → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Matthew Bachinski, MDGreenwood, SC 296461881687093
- Guy Dooley, D.O.Greenwood, SC 296461811336092
- William Gilchrist, MDGreenwood, SC 296461346233558
- Bryan Green, MDGreenwood, SC 296461861485963
- Albert Ramage, MDGreenwood, SC 296461467445676
- Rafal Sadurski, MDGreenwood, SC 296461487647699
- Pratyusha Tirumani Setty, MDGreenwood, SC 296461932629235
- Michael Windham, M.D.Greenwood, SC 296461861697740
Common questions
What is Matthew Asa Mason, M.D.'s NPI number?
Matthew Asa Mason, M.D.'s National Provider Identifier (NPI) is 1710272471, issued on Jun 10, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Asa Mason, M.D. located?
The NPPES record lists a practice address at 103 Liner Dr, Greenwood, SC, 29646. Phone: (864) 227-3636. Providers update this record themselves, so call before visiting.
How can I verify Matthew Asa Mason, M.D.'s license?
NPPES lists South Carolina license number 33732, 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 Matthew Asa Mason, M.D. prescribe under Medicare Part D?
In 2024, Matthew Asa Mason, M.D. had 1,208 Medicare Part D claims for 616 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions 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.