Denise McAllister Mercier, PA-C
Medical Physician Assistant · Beaufort, SC
Denise McAllister Mercier, PA-C is a medical physician assistant with a practice address in Beaufort, South Carolina, and NPI 1073600698, issued on Oct 6, 2006. Check the license (South Carolina 636, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Denise McAllister Mercier
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 636 SC
Self-reported in NPPES; status is on the state search - Practice location
- 989 Ribaut RD Ste 340, Beaufort, SC 29902
- Phone
- (843) 521-8484
- Enumerated
- Oct 6, 2006
- Record last updated
- Apr 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (843) 521-8485
- Medicare enrollment
- Enrolled (PECOS I20080325000168); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 493 in South Carolina → Look up another NPI →
Verify Denise McAllister Mercier 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 636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average medical physician assistant in 2024
352 Medicare Part D claims for 156 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Trelegy Ellipta35 claims
- Prednisone16 claims
- Hydrocodone-Acetaminophen14 claims
- Montelukast Sodium11 claims
- Ondansetron Odt11 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.
One hospital affiliation
- Beaufort County Memorial HospitalBeaufort, SC · Acute Care Hospitals4 of 5 stars
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.
Denise McAllister Mercier among 493 medical physician assistant records in South Carolina
Denise McAllister Mercier, PA-C is one of 493 medical physician assistant records with a practice address in South Carolina. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 75% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2003 · median 2014 among the 282 with a school on file
- Record last updated2019 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 medical physician assistant records list a practice address in Beaufort
They are 15 of the 1,190 NPPES records with a practice address in Beaufort, and 493 medical physician assistant records in South Carolina.
All 493 in South Carolina → Every provider in Beaufort → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Kristin Callaghan, PA-CBeaufort, SC 299021598144305
- Francisco Cornejo, PA-CBeaufort, SC 299021861638173
- Kate D'Orazio, PA-CBeaufort, SC 299021356585525
- Suzanne Dirienzo, PA-CBeaufort, SC 299021265612147
- Eric Gearhart, PABeaufort, SC 299021063491025
- Linda HubbardBeaufort, SC 299021942348859
- Lisa Kessler, PABeaufort, SC 299021649390667
- Matthew Pinto, PA-CBeaufort, SC 299021609847508
Common questions
What is Denise McAllister Mercier, PA-C's NPI number?
Denise McAllister Mercier, PA-C's National Provider Identifier (NPI) is 1073600698, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Denise McAllister Mercier, PA-C located?
The NPPES record lists a practice address at 989 Ribaut RD Ste 340, Beaufort, SC, 29902. Phone: (843) 521-8484. Providers update this record themselves, so call before visiting.
How can I verify Denise McAllister Mercier, PA-C's license?
NPPES lists South Carolina license number 636, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Denise McAllister Mercier, PA-C prescribe under Medicare Part D?
In 2024, Denise McAllister Mercier, PA-C had 352 Medicare Part D claims for 156 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.