Dr. Calvin Lee Nelson Jr., D.C.
Dr. Calvin Lee Nelson Jr. is a Chiropractor provider (Chiropractor) practicing in Ada, OK, registered in the NPPES registry with NPI 1679695712 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at Nelson Chiropractic, LLC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1679695712 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Calvin Lee Nelson Jr. |
| Credential | D.C. |
| Sex | Male |
| Practice address | Ada, OK, 74820 |
| Phone | 5804471873 |
| Fax | 5805592348 |
| Enumeration date | 2007-04-06 |
| Last updated in NPPES | 2024-07-22 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 3428 | OK |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 731539588001 | Other | OK | BLUE CROSS BLUE SHIELD |
Copy-ready billing details
Provider: Calvin Nelson, D.C. NPI: 1679695712 Taxonomy: 111N00000X (Chiropractor) Address: Ada, OK, 74820
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1932051752 | Nelson Chiropractic, LLC | Organization | Chiropractor | Ada, OK |
Verify this record
Cross-check NPI 1679695712 against the authoritative CMS record: view Dr. Calvin Lee Nelson Jr. 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-07-22.