Mark A. Giarrizzi, PAC
Physician Assistant · Rock Hill, SC
Mark A. Giarrizzi, PAC is a physician assistant with a practice address in Rock Hill, South Carolina, and NPI 1376558007, issued on Jul 30, 2006. Check the license (South Carolina 1098, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark A. Giarrizzi
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1098 SC
Self-reported in NPPES; status is on the state search - Practice location
- 760 Addison Ave, Rock Hill, SC 29730
- Phone
- (803) 329-1930
- Enumerated
- Jul 30, 2006
- Record last updated
- Oct 26, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (803) 328-2549
- Medicaid ID
- 0433PA SC
- Medicare enrollment
- Enrolled (PECOS I20130123000032); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,294 in South Carolina → Look up another NPI →
Verify Mark A. Giarrizzi 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 1098Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17.1 times the Medicare Part D claims of the average physician assistant in 2024
14,165 Medicare Part D claims for 386 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 209 claims were for opioids.
Most prescribed
- Levothyroxine Sodium579 claims
- Atorvastatin Calcium573 claims
- Losartan Potassium561 claims
- Donepezil Hcl460 claims
- Amlodipine Besylate436 claims
- Trazodone Hcl423 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.
The MIPS final score for 2023 (Medicare payment program): 8.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Infinite Wellness OF The CarolinasConcord, NC
- Lifesource Prime IncClinton, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark A. Giarrizzi among 2,294 physician assistant records in South Carolina
Mark A. Giarrizzi, PAC 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 86% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2019 among the 1,516 with a school on file
- Record last updated2007 · 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).
50 physician assistant records list a practice address in Rock Hill
They are 50 of the 2,271 NPPES records with a practice address in Rock Hill, and 2,294 physician assistant records in South Carolina.
All 2,294 in South Carolina → Every provider in Rock Hill → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Angela Albero, PA-CRock Hill, SC 297301891714424
- Carleigh Barnes, PA-CRock Hill, SC 297301730935826
- Chakosha Coleman, MSPAS, PA-CRock Hill, SC 297301932438421
- Jamie Cosby, PA-CRock Hill, SC 297301295348811
- Matthew David, PA-CRock Hill, SC 297301578547949
- Shaylo Reyes, PA-CRock Hill, SC 297301700372323
- Evthokia Thompson, PA-CRock Hill, SC 297301891411039
- Laurice Ingram, DMSC, PA-CRichburg, SC 297291932745999
Common questions
What is Mark A. Giarrizzi, PAC's NPI number?
Mark A. Giarrizzi, PAC's National Provider Identifier (NPI) is 1376558007, issued on Jul 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Giarrizzi, PAC located?
The NPPES record lists a practice address at 760 Addison Ave, Rock Hill, SC, 29730. Phone: (803) 329-1930. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Giarrizzi, PAC's license?
NPPES lists South Carolina license number 1098, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Mark A. Giarrizzi, PAC prescribe under Medicare Part D?
In 2024, Mark A. Giarrizzi, PAC had 14,165 Medicare Part D claims for 386 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Mark A. Giarrizzi, PAC's MIPS final score?
The 2023 MIPS final score is 8.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.