Mary Ann Allston
Family Medicine Physician · Greenville, SC
Mary Ann Allston is a family medicine physician with a practice address in Greenville, South Carolina, and NPI 1104490150, issued on May 14, 2021. Check the license (South Carolina 85848, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mary Ann Allston
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 85848 SC
Self-reported in NPPES; status is on the state search - Practice location
- 701 Grove RD FL 5, Greenville, SC 29605
- Phone
- (864) 455-4411
- Enumerated
- May 14, 2021
- Record last updated
- Jul 1, 2024
- Fax
- (864) 455-4480
- Medicare enrollment
- Enrolled (PECOS I20240715000242); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,700 in South Carolina → Look up another NPI →
Also registered at 701 Grove RD FL 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Ann Allston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 85848Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
509 Medicare Part D claims for 73 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium39 claims
- Albuterol Sulfate Hfa18 claims
- Pantoprazole Sodium17 claims
- Trazodone Hcl16 claims
- Amlodipine Besylate14 claims
- Clopidogrel14 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: $41.92
2 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 55,478 providers of this specialty with any payment received $902.55 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.
2 hospitals and group practices
- Spartanburg Medical CenterBoiling Springs, SC · Acute Care Hospitals2 of 5 stars
- Prisma Health University Medical GroupDuncan, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mary Ann Allston among 2,700 family medicine physician records in South Carolina
Mary Ann Allston is one of 2,700 family medicine physician records with a practice address in South Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 83% of them.
- NPI issued2021 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2017 · median 2006 among the 1,638 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
217 family medicine physician records list a practice address in Greenville
They are 217 of the 10,264 NPPES records with a practice address in Greenville, and 2,700 family medicine physician records in South Carolina.
All 2,700 in South Carolina → Every provider in Greenville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ronald Ashton, M.D.Greenville, SC 296051902845886
- Peter Carek, MDGreenville, SC 296051255449294
- Gregrey Compton, MDGreenville, SC 296051134220114
- Paul FreelGreenville, SC 296051528088721
- Nurul Islam, M.D.Greenville, SC 296051861585580
- Stephen Keiser, MDGreenville, SC 296051659307007
- Allan Macdonald, MDGreenville, SC 296051275591216
- Phyllis Macgilvray, MDGreenville, SC 296051528043320
Common questions
What is Mary Ann Allston's NPI number?
Mary Ann Allston's National Provider Identifier (NPI) is 1104490150, issued on May 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Allston located?
The NPPES record lists a practice address at 701 Grove RD FL 5, Greenville, SC, 29605. Phone: (864) 455-4411. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Allston's license?
NPPES lists South Carolina license number 85848, 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 Mary Ann Allston prescribe under Medicare Part D?
In 2024, Mary Ann Allston had 509 Medicare Part D claims for 73 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.