Doctor profile · Federal record
Dr. Mark Grenkoski, M.D.
Emergency Medicine Physician · Emergency Medicine Physician · Family Medicine Physician · Robbinsville, NC
- NPI 1174567754
- 20 yrs on file
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
409 Tallulah RD
Robbinsville, NC 287718500
(828) 479-6434 - Additional location
-
7575 E Earll Dr
Scottsdale, AZ 852516915
(480) 448-7500 - Mailing address
-
215 Johnston Farm Ln
Woodstock, GA 301882670
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- August 1, 2023
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- North Carolina #38069 · Tennessee #34687
- Medicaid (2)
- TN #3860884 · TN #3860883
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174567754. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
62
Distinct HCPCS
2
Medicare allowed
$420
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
85610 |
Blood test, clotting time | 32 | 12 | $4 | |
83036 |
Hemoglobin a1c level | 30 | 22 | $10 |
In context: peer comparison
Among 1 peers in Robbinsville Emergency Medicine Physician, average services per provider: 31. This provider delivers 2.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,726
Patients
599
Total drug cost
$212,726
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 242 | 87 | $4,108 |
| Gabapentin | Generic | 188 | 55 | $3,314 |
| Omeprazole | Generic | 157 | 57 | $2,351 |
| Lisinopril | Generic | 129 | 53 | $1,161 |
| Hydrochlorothiazide | Generic | 109 | 37 | $416 |
| Amlodipine Besylate | Generic | 106 | 45 | $1,118 |
| Fluticasone Propionate | Generic | 106 | 39 | $1,674 |
| Atorvastatin Calcium | Generic | 103 | 39 | $1,033 |
| Losartan Potassium | Generic | 95 | 39 | $870 |
| Ozempic (Semaglutide) | Brand | 89 | 20 | $111,277 |
Frequently asked questions
What is Dr. Mark Grenkoski's medical specialty?
Dr. Mark Grenkoski practices Emergency Medicine Physician in Robbinsville, NC.
Where does Dr. Mark Grenkoski practice?
Dr. Mark Grenkoski practices at 409 Tallulah RD, Robbinsville, NC 287718500. Office phone: 8284796434.
What is Dr. Mark Grenkoski's NPI?
Dr. Mark Grenkoski's National Provider Identifier (NPI) is 1174567754, issued by NPPES.
What procedures does Dr. Mark Grenkoski commonly perform?
Top Medicare-reported procedures in 2023: Blood test, clotting time (HCPCS 85610); Hemoglobin a1c level (HCPCS 83036). Source: CMS Medicare Physician & Other Practitioners file.