Gregory T Whitman MD Inc
Gregory T Whitman MD Inc is a healthcare organization registered as Neurology Physician in Irvine, CA, holding Type 2 (organization) NPI 1467932160 since 2018. The authorized official on file is Gregory Whitman, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1467932160 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Gregory T Whitman MD Inc |
| Practice address | 16405 SAND CANYON AVE STE 220, Irvine, CA, 92618 |
| Phone | 9493368150 |
| Fax | 9497277016 |
| Enumeration date | 2018-08-21 |
| Last updated in NPPES | 2018-10-30 |
Authorized official
| Name | Gregory Whitman |
|---|---|
| Title | President |
| Phone | 3104930860 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2084N0400X | Neurology Physician | Primary | A65223 | CA |
Copy-ready billing details
Provider: Gregory T Whitman MD Inc NPI: 1467932160 Taxonomy: 2084N0400X (Neurology Physician) Address: 16405 SAND CANYON AVE STE 220, Irvine, CA, 92618
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1356403851 | Gregory Whitman | Individual | Neurology Physician | Irvine, CA |
| 1205042249 | Bruce Cleeremans | Individual | Neurology Physician | Irvine, CA |
| 1811426125 | Lauren Bennett | Individual | Clinical Neuropsychologist | Irvine, CA |
| 1992366314 | Ruth Morin | Individual | Clinical Psychologist | Irvine, CA |
| 1770248809 | Michelle Mcdonnell | Individual | Clinical Neuropsychologist | Irvine, CA |
| 1487473575 | Oc Neuropsych, A Psychological Corporation | Organization | Clinical Neuropsychologist | Irvine, CA |
| 1043148240 | Melvin Castillo | Individual | Student in an Organized Health Care Education/Training Program | Irvine, CA |
Verify this record
Cross-check NPI 1467932160 against the authoritative CMS record: view Gregory T Whitman MD 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 is a Type 2 NPI?
What type of organization is Gregory T Whitman MD Inc?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-10-30.