W. D. Mccallum, M.D., Inc.
W. D. Mccallum, M.D., Inc. is a healthcare organization registered as Maternal & Fetal Medicine Physician in Mountain View, CA, holding Type 2 (organization) NPI 1053592733 since 2007. The authorized official on file is William Mccallum, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1053592733 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | W. D. Mccallum, M.D., Inc. |
| Practice address | 1580 W EL CAMINO REAL, SUITE 1, Mountain View, CA, 94040 |
| Phone | 6509641505 |
| Fax | 6509641522 |
| Enumeration date | 2007-11-21 |
| Last updated in NPPES | 2007-11-21 |
Authorized official
| Name | William Mccallum |
|---|---|
| Title | President |
| Phone | 6509641505 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207VM0101X | Maternal & Fetal Medicine Physician | Primary | GR0104720 | CA |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00G212400 | Medicaid | CA | — |
| 00A305370 | Medicaid | CA | — |
Copy-ready billing details
Provider: W. D. Mccallum, M.D., Inc. NPI: 1053592733 Taxonomy: 207VM0101X (Maternal & Fetal Medicine Physician) Address: 1580 W EL CAMINO REAL, SUITE 1, Mountain View, CA, 94040
Providers at this 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 |
| 1629267117 | Robert Liner | Individual | Specialist | Mountain View, CA |
| 1659629608 | Katherine Young | Individual | Genetic Counselor (M.S.) | Mountain View, CA |
Verify this record
Cross-check NPI 1053592733 against the authoritative CMS record: view W. D. Mccallum, M.D., Inc. 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
What type of organization is W. D. Mccallum, M.D., Inc.?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-11-21.