Derek John William Parker, PA-C
Physician Assistant · Seneca, SC
Derek John William Parker, PA-C is a physician assistant with a practice address in Seneca, South Carolina, and NPI 1548318223, issued on Jan 8, 2007. Check the license (South Carolina 1839, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derek John William Parker
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1839 SC
Self-reported in NPPES; status is on the state search - Practice location
- 10630 Clemson Blvd, Seneca, SC 29678
- Phone
- (864) 482-6000
- Enumerated
- Jan 8, 2007
- Record last updated
- Jun 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (864) 482-7000
- Medicaid ID
- 1544PA SC
- Medicare enrollment
- Enrolled (PECOS I20130125000425); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,294 in South Carolina → Look up another NPI →
Also registered at 10630 Clemson Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Hensarling, MDOrthopaedic Surgery Physician1003875717
- Charles Jackson, PA-CPhysician Assistant1649230715
- Patrick McCallum, MDSports Medicine (Orthopaedic Surgery) Physician1356300040
Verify Derek John William Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 1839Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average physician assistant in 2024
493 Medicare Part D claims for 164 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 200 claims were for opioids.
Most prescribed
- Naproxen91 claims
- Tramadol Hcl77 claims
- Oxycodone Hcl69 claims
- Hydrocodone-Acetaminophen48 claims
- Zolpidem Tartrate42 claims
- Ondansetron Hcl38 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: $1,728.54
9 payments; by number, the most common kind was food and beverage; the largest payer was Peerless Surgical 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.
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
- Prisma Health University Medical GroupSeneca, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek John William Parker among 2,294 physician assistant records in South Carolina
Derek John William Parker, 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 2007, is newer than 14% of them.
- NPI issued2007 · 14% of these records are older, 82% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2019 among the 1,516 with a school on file
- Record last updated2021 · 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).
19 physician assistant records list a practice address in Seneca
They are 19 of the 697 NPPES records with a practice address in Seneca, and 2,294 physician assistant records in South Carolina.
All 2,294 in South Carolina → Every provider in Seneca → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kristin Cantrell, PASeneca, SC 296781659332658
- Andrew EbnerSeneca, SC 296781225709280
- Carolyn Green, PA-CSeneca, SC 296781972876738
- Charles Jackson, PA-CSeneca, SC 296781649230715
- Jessica JonesSeneca, SC 296781437782844
- Ross Leclair, PA-CSeneca, SC 296781679224752
- David McKenna, PA-CSeneca, SC 296781215538913
- Carson Medlin, PASeneca, SC 296781912639683
Common questions
What is Derek John William Parker, PA-C's NPI number?
Derek John William Parker, PA-C's National Provider Identifier (NPI) is 1548318223, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Derek John William Parker, PA-C located?
The NPPES record lists a practice address at 10630 Clemson Blvd, Seneca, SC, 29678. Phone: (864) 482-6000. Providers update this record themselves, so call before visiting.
How can I verify Derek John William Parker, PA-C's license?
NPPES lists South Carolina license number 1839, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Derek John William Parker, PA-C prescribe under Medicare Part D?
In 2024, Derek John William Parker, PA-C had 493 Medicare Part D claims for 164 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.