John L Nelson
John L Nelson is a healthcare organization registered as Optometrist in Castro Valley, CA, holding Type 2 (organization) NPI 1487789327 since 2007. The authorized official on file is John Nelson, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1487789327 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | John L Nelson |
| Other name | <Unavail> |
| Practice address | 20211 PATIO DR, SUITE 100, Castro Valley, CA, 94546 |
| Phone | 5108814401 |
| Fax | 5108814423 |
| Enumeration date | 2007-02-22 |
| Last updated in NPPES | 2008-06-23 |
Authorized official
| Name | John Nelson |
|---|---|
| Title | Owner |
| Phone | 5108814401 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 152W00000X | Optometrist | Primary | 4985 | CA |
Copy-ready billing details
Provider: John L Nelson NPI: 1487789327 Taxonomy: 152W00000X (Optometrist) Address: 20211 PATIO DR, SUITE 100, Castro Valley, CA, 94546
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1922095082 | John Nelson | Individual | Optometrist | Castro Valley, CA |
| 1144202615 | California Sports Physical Therapy Centers, Inc. | Organization | Physical Therapist | Castro Valley, CA |
| 1376526160 | Trudie Silva | Individual | Physical Therapist | Castro Valley, CA |
| 1851375240 | Joseph Farrell | Individual | Physical Therapist | Castro Valley, CA |
| 1396729364 | Dennis Ingram | Individual | Physical Therapist | Castro Valley, CA |
| 1457371619 | John Wong | Individual | Optometrist | Castro Valley, CA |
| 1619981792 | Christina Atkinson | Individual | Optometrist | Castro Valley, CA |
| 1346394889 | Wendy Jacobsen | Individual | Marriage & Family Therapist | Castro Valley, CA |
Verify this record
Cross-check NPI 1487789327 against the authoritative CMS record: view John L Nelson 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
Who is the authorized official for John L Nelson?
What is the NPI number for John L Nelson?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-06-23.