Robert Irving Liner, M.D.
Robert Irving Liner is a Specialist provider (Specialist) practicing in Mountain View, CA, registered in the NPPES registry with NPI 1629267117 since 2007. The credential MD stands for Doctor of Medicine. Practices at W. D. Mccallum, M.D., Inc. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1629267117 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Robert Irving Liner |
| Credential | M.D. |
| Sex | Male |
| Practice address | 1580 W EL CAMINO REAL, SUITE 1, Mountain View, CA, 94040 |
| Phone | 6509641505 |
| Fax | 6509641522 |
| Enumeration date | 2007-10-19 |
| Last updated in NPPES | 2007-10-19 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | G21240 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00G212400 | Medicaid | CA | — |
Copy-ready billing details
Provider: Robert Liner, M.D. NPI: 1629267117 Taxonomy: 174400000X (Specialist) Address: 1580 W EL CAMINO REAL, SUITE 1, Mountain View, CA, 94040
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1780803106 | Mersedeh Eghdami | Individual | Chiropractor | Mountain View, CA |
| 1629272786 | Chia Chang Lu | Individual | Dentist | Mountain View, CA |
| 1801082078 | Yen-Ping Lee | Individual | Dentist | Mountain View, CA |
| 1053592733 | W. D. Mccallum, M.D., Inc. | Organization | Maternal & Fetal Medicine Physician | Mountain View, CA |
| 1659629608 | Katherine Young | Individual | Genetic Counselor (M.S.) | Mountain View, CA |
Verify this record
Cross-check NPI 1629267117 against the authoritative CMS record: view Robert Irving Liner 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 2007-10-19.