Doctor profile · Federal record
Dr. Mark Gruchacz, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Raleigh, NC
- NPI 1659364115
- Accepts Medicare
- 32 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3000 New Bern Ave
Raleigh, NC 276101231
(919) 350-8000 - Mailing address
-
2920 Highwoods Blvd
Raleigh, NC 276040010
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- February 25, 2021
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- North Carolina #9700258
- Medicaid
- NC #891031X
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659364115. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
778
Distinct HCPCS
6
Medicare allowed
$77,874
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 316 | 163 | $116 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 235 | 99 | $77 | |
99239 |
Hospital discharge day management, more than 30 minutes | 124 | 123 | $111 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 57 | 37 | $48 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 35 | 35 | $169 | |
99238 |
Hospital discharge day management, 30 minutes or less | 11 | 11 | $78 |
In context: peer comparison
Among 106 peers in Raleigh Internal Medicine Physician, average services per provider: 106. This provider delivers 7.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
151
Patients
64
Total drug cost
$8,895
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 22 | 0 | $228 |
| Pantoprazole Sodium | Generic | 16 | 12 | $207 |
| Prednisone | Generic | 16 | 16 | $73 |
| Oxycodone Hcl | Generic | 14 | 14 | $75 |
| Tamsulosin Hcl | Generic | 14 | 0 | $188 |
| Amlodipine Besylate | Generic | 13 | 11 | $145 |
| Diltiazem 24Hr ER (Cd) (Diltiazem Hcl) | Brand | 12 | 0 | $253 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 11 | 11 | $141 |
| Eliquis (Apixaban) | Brand | 11 | 0 | $7,385 |
| Levothyroxine Sodium | Generic | 11 | 0 | $115 |
Frequently asked questions
What is Dr. Mark Gruchacz's medical specialty?
Dr. Mark Gruchacz practices Internal Medicine Physician in Raleigh, NC.
Where does Dr. Mark Gruchacz practice?
Dr. Mark Gruchacz practices at 3000 New Bern Ave, Raleigh, NC 276101231. Office phone: 9193508000.
What is Dr. Mark Gruchacz's NPI?
Dr. Mark Gruchacz's National Provider Identifier (NPI) is 1659364115, issued by NPPES.
Does Dr. Mark Gruchacz accept Medicare assignment?
Yes. Dr. Mark Gruchacz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Gruchacz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.