NPPES file of Aug 9, 2026

Katelyn Marie Mason, PA

Physician Assistant · Little River, SC

Katelyn Marie Mason, PA is a physician assistant with a practice address in Little River, South Carolina, and NPI 1356984322, issued on Oct 23, 2019. Check the license (South Carolina 3382, 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
1356984322
Name
Katelyn Marie Mason
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
3382 SC
Self-reported in NPPES; status is on the state search
Practice location
3980 Highway 9 E Ste 300, Little River, SC 29566
Phone
(843) 646-8040
Enumerated
Oct 23, 2019
Record last updated
Jul 22, 2024
Fax
(843) 646-8049
Medicare enrollment
Enrolled (PECOS I20200109001844); 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 3980 Highway 9 E Ste 300

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

  1. Donny Huynh, M.D.Hematology & Oncology Physician1942598560
  2. Nicholas Koroneos, MS, DONeurology Physician1134622913
  3. Stacy Rojas, FNP-BCFamily Nurse Practitioner1518844984
  4. Olinda Spencer, M.D.Neurology Physician1487072823

Verify Katelyn Marie Mason 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 3382
    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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3.8 times the Medicare Part D claims of the average physician assistant in 2024

3,167 Medicare Part D claims for 736 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Katelyn Mason3,167
  2. Specialty average830

Most prescribed

  1. Memantine Hcl321 claims
  2. Donepezil Hcl303 claims
  3. Gabapentin296 claims
  4. Carbidopa-Levodopa160 claims
  5. Primidone151 claims
  6. Levetiracetam134 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: $1,101.94

62 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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. Katelyn Mason$1,101.94
  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. Hilton Head Regional Physician Group LLCHilton Head, SC

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

13 physician assistant records list a practice address in Little River

They are 13 of the 308 NPPES records with a practice address in Little River, and 2,294 physician assistant records in South Carolina.

Other physician assistant records in South Carolina

  1. Linda Aanonsen, PAConway, SC1184822777
  2. Rana Abedini, PA-CGreenville, SC1780154807
  3. Michael Adam, PANorth Augusta, SC1699884957
  4. Taylor AdamCharleston, SC1902576929
  5. Amber AdamsMyrtle Beach, SC1447101092
  6. Chandler Adams, PA-CGreenwood, SC1205465820
  7. Kaylee Adams, PA-CSeneca, SC1942943246
  8. Nicholas AdamsonsN Charleston, SC1740929637
  9. Ashley AdasczikCharleston, SC1750265294
  10. Benjamin Addy, PA-CWest Columbia, SC1831520782

Common questions

What is Katelyn Marie Mason, PA's NPI number?

Katelyn Marie Mason, PA's National Provider Identifier (NPI) is 1356984322, issued on Oct 23, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katelyn Marie Mason, PA located?

The NPPES record lists a practice address at 3980 Highway 9 E Ste 300, Little River, SC, 29566. Phone: (843) 646-8040. Providers update this record themselves, so call before visiting.

How can I verify Katelyn Marie Mason, PA's license?

NPPES lists South Carolina license number 3382, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Katelyn Marie Mason, PA prescribe under Medicare Part D?

In 2024, Katelyn Marie Mason, PA had 3,167 Medicare Part D claims for 736 beneficiaries; the average among physician assistant prescribers was 830. 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.