Dr. Gregory William Friesner, D.C.
Dr. Gregory William Friesner is a Chiropractor provider (Chiropractor) practicing in Sioux Falls, SD, registered in the NPPES registry with NPI 1477520385 since 2006. The credential DC stands for Doctor of Chiropractic. Practices at Fahrendorf Family Chiropractic & Wellness, P.C. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1477520385 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Gregory William Friesner |
| Credential | D.C. |
| Sex | Male |
| Practice address | 3909 S SOUTHEASTERN AVE, Sioux Falls, SD, 57103 |
| Phone | 6053344722 |
| Fax | 6053300889 |
| Enumeration date | 2006-03-01 |
| Last updated in NPPES | 2007-07-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 685 | SD |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0086551 | Other | SD | BLUE CROSS BLUE SHIELD |
| 7602640 | Medicaid | SD | — |
Copy-ready billing details
Provider: Gregory Friesner, D.C. NPI: 1477520385 Taxonomy: 111N00000X (Chiropractor) Address: 3909 S SOUTHEASTERN AVE, Sioux Falls, SD, 57103
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1962953026 | Eric Fahrendorf | Individual | Chiropractor | Sioux Falls, SD |
| 1730631854 | Fahrendorf Family Chiropractic & Wellness, P.C. | Organization | Chiropractor | Sioux Falls, SD |
Verify this record
Cross-check NPI 1477520385 against the authoritative CMS record: view Dr. Gregory William Friesner on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Is NPI 1477520385 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-09.