Doctor profile · Federal record
Dr. Mark Giarrizzi, PAC
Physician Assistant · Rock Hill, SC
- NPI 1376558007
- Accepts Medicare
- MIPS 8.6 / 100 · 2023
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
760 Addison Ave
Rock Hill, SC 29730
(803) 329-1930
fax (803) 328-2549
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- October 26, 2007
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- South Carolina #1098
- Medicaid
- SC #0433PA
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1376558007. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,394
Distinct HCPCS
6
Medicare allowed
$150,958
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 1,099 | 233 | $103 | |
99350 |
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | 105 | 83 | $151 | |
99345 |
Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes | 95 | 95 | $163 | |
99348 |
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 58 | 49 | $62 | |
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 19 | 17 | $42 | |
99344 |
Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes | 18 | 18 | $116 |
In context: peer comparison
Among 14 peers in Rock Hill Physician Assistant, average services per provider: 216. This provider delivers 6.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
5,602
Patients
1,026
Total drug cost
$221,805
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 605 | 100 | $10,132 |
| Atorvastatin Calcium | Generic | 593 | 108 | $9,448 |
| Losartan Potassium | Generic | 470 | 75 | $5,915 |
| Omeprazole | Generic | 447 | 86 | $7,002 |
| Donepezil Hcl | Generic | 437 | 71 | $8,550 |
| Trazodone Hcl | Generic | 425 | 75 | $5,201 |
| Amlodipine Besylate | Generic | 417 | 83 | $4,867 |
| Furosemide | Generic | 326 | 69 | $2,333 |
| Sertraline Hcl | Generic | 322 | 56 | $3,902 |
| Mirtazapine | Generic | 303 | 56 | $9,663 |
Frequently asked questions
What is Dr. Mark Giarrizzi's medical specialty?
Dr. Mark Giarrizzi practices Physician Assistant in Rock Hill, SC.
Where does Dr. Mark Giarrizzi practice?
Dr. Mark Giarrizzi practices at 760 Addison Ave, Rock Hill, SC 29730. Office phone: 8033291930.
What is Dr. Mark Giarrizzi's NPI?
Dr. Mark Giarrizzi's National Provider Identifier (NPI) is 1376558007, issued by NPPES.
Does Dr. Mark Giarrizzi accept Medicare assignment?
Yes. Dr. Mark Giarrizzi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Giarrizzi commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Residence visit for established patient with high level of medical decision making (HCPCS 99350); Residence visit for new patient with high level of medical decision making (HCPCS 99345). Source: CMS Medicare Physician & Other Practitioners file.