Dr. Barbara Jill Armstrong, OD
Dr. Barbara Jill Armstrong is a Optometrist provider (Optometrist) practicing in Pasadena, CA, registered in the NPPES registry with NPI 1023120367 since 2006. The credential OD stands for Doctor of Optometry. Practices at Linden Optometry A Professional Corporation (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1023120367 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Barbara Jill Armstrong |
| Credential | OD |
| Sex | Female |
| Practice address | 477 E COLORADO BLVD, Pasadena, CA, 91101 |
| Phone | 6267961191 |
| Fax | 6267960189 |
| Enumeration date | 2006-08-31 |
| Last updated in NPPES | 2007-09-07 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 152W00000X | Optometrist | Primary | 5982T | CA |
OD — Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| SD0059820 | Medicaid | CA | — |
Copy-ready billing details
Provider: Barbara Armstrong, OD NPI: 1023120367 Taxonomy: 152W00000X (Optometrist) Address: 477 E COLORADO BLVD, Pasadena, CA, 91101
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1871584581 | Laurence Rubin | Individual | Optometrist | Pasadena, CA |
| 1952327090 | Marion Yan | Individual | Optometrist | Pasadena, CA |
| 1497867733 | Tracy Mayo | Individual | Optometrist | Pasadena, CA |
| 1679685911 | Vivien Chan | Individual | Optometrist | Pasadena, CA |
| 1669584900 | Christie Chan | Individual | Optometrist | Pasadena, CA |
| 1740392984 | Jeanne Wu | Individual | Optometrist | Pasadena, CA |
| 1285746420 | Brenda Lien | Individual | Optometrist | Pasadena, CA |
| 1063524304 | Jessica Chang | Individual | Optometrist | Pasadena, CA |
Verify this record
Cross-check NPI 1023120367 against the authoritative CMS record: view Dr. Barbara Jill Armstrong 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 2007-09-07.