Dr. David H. Irwin, M.D.
Dr. David H. Irwin is a Hematology & Oncology Physician provider (Internal Medicine) practicing in Berkeley, CA, registered in the NPPES registry with NPI 1780672048 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1780672048 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. David H. Irwin |
| Credential | M.D. |
| Sex | Male |
| Practice address | 2001 DWIGHT WAY, Berkeley, CA, 94704 |
| Phone | 5102046402 |
| Fax | 5108480801 |
| Enumeration date | 2005-10-11 |
| Last updated in NPPES | 2010-03-17 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Secondary | G68429 | CA |
| 207RH0003X | Hematology & Oncology Physician | Primary | G68429 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: David Irwin, M.D. NPI: 1780672048 Taxonomy: 207RH0003X (Hematology & Oncology Physician) Address: 2001 DWIGHT WAY, Berkeley, CA, 94704
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1295738805 | Bay Area Rehabilitation Medical Group | Organization | Physical Medicine & Rehabilitation Physician | Berkeley, CA |
| 1518963693 | Lifelong Medical Care | Organization | Family Medicine Physician | Berkeley, CA |
| 1881694198 | Erika Bruce | Individual | Adult Health Nurse Practitioner | Berkeley, CA |
| 1053312355 | Patrick Swift | Individual | Radiation Oncology Physician | Berkeley, CA |
| 1043208457 | Northern California Hematology and Oncology Consultants, Inc | Organization | Hematology & Oncology Physician | Berkeley, CA |
| 1780673442 | Michael Cassidy | Individual | Specialist | Berkeley, CA |
| 1093704637 | Anne-Renne Hartman | Individual | Specialist | Berkeley, CA |
| 1275522823 | Bay Area Oncology Hematology Medical Group | Organization | Specialist | Berkeley, CA |
Verify this record
Cross-check NPI 1780672048 against the authoritative CMS record: view Dr. David H. Irwin 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 the NPI number for David Irwin?
Where does David Irwin practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-03-17.