Doctor profile · Federal record
Dr. Darwin Gramstad, CRNA
Certified Registered Nurse Anesthetist · Sioux Falls, SD
- NPI 1063401081
- 21 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6601 S Minnesota Ave, Suite 100
Sioux Falls, SD 571082564
(605) 336-6294
fax (605) 336-2672
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- January 30, 2008
- Specialty taxonomy
- 367500000X — NUCC code
- State license (1)
- South Dakota #R024467
- Medicaid
- SD #5751313
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1063401081. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
858
Distinct HCPCS
5
Medicare allowed
$104,852
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00142 |
Anesthesia for lens surgery | 543 | 449 | $104 | |
00145 |
Anesthesia for retinal surgery | 127 | 126 | $161 | |
00140 |
Anesthesia for other procedure on eye | 109 | 99 | $141 | |
00103 |
Anesthesia for procedure on eyelid | 68 | 68 | $148 | |
00144 |
Anesthesia for procedure on eye for corneal transplant | 11 | 11 | $208 |
In context: peer comparison
Among 74 peers in this city , average services per provider: 39. This provider delivers 22× the peer median.Frequently asked questions
What is Dr. Darwin Gramstad's medical specialty?
Dr. Darwin Gramstad practices Certified Registered Nurse Anesthetist in Sioux Falls, SD.
Where does Dr. Darwin Gramstad practice?
Dr. Darwin Gramstad practices at 6601 S Minnesota Ave, Sioux Falls, SD 571082564. Office phone: 6053366294.
What is Dr. Darwin Gramstad's NPI?
Dr. Darwin Gramstad's National Provider Identifier (NPI) is 1063401081, issued by NPPES.
What procedures does Dr. Darwin Gramstad commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for retinal surgery (HCPCS 00145); Anesthesia for other procedure on eye (HCPCS 00140). Source: CMS Medicare Physician & Other Practitioners file.