NPPES file of Aug 9, 2026

David H. Irwin, M.D.

Hematology & Oncology Physician · Berkeley, CA

David H. Irwin, M.D. is a hematology & oncology physician with a practice address in Berkeley, California, and NPI 1780672048, issued on Oct 11, 2005. Check the license (California G68429, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780672048
Name
David H. Irwin
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
G68429 CA
Self-reported in NPPES; status is on the state search
Practice location
2001 Dwight Way, Berkeley, CA 94704
Phone
(510) 204-6402
Enumerated
Oct 11, 2005
Record last updated
Mar 17, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(510) 848-0801
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →

Also registered at 2001 Dwight Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Neal Anzai, M.D.Psychiatry Physician1750597688
  2. Mary-Ellis Arnold, R.N., A.N.P.Adult Health Nurse Practitioner1619018322
  3. Kate Bartholomew, LCSWClinical Social Worker1881647196
  4. Rajesh Behl, M.D.Hematology & Oncology Physician1104844174
  5. Anne BosshardtInternal Medicine Physician1841435427
  6. Erika Bruce, NPAdult Health Nurse Practitioner1881694198

Verify David H. Irwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G68429    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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David H. Irwin among 1,583 hematology & oncology physician records in California

David H. Irwin, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2010 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in California

There are 1,583 hematology & oncology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,583 in California → Every provider in Berkeley → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Rajesh Behl, M.D.Berkeley, CA 947041104844174
  2. Susan Kao, MDBerkeley, CA 947041396823167
  3. Kevin Knopf, M.D.Berkeley, CA 947041881626687
  4. Oleg Krijanovski, MD, PHDBerkeley, CA 947041841376704
  5. Uma Suryadevara, MDBerkeley, CA 947041750487385
  6. Ann Wexler, MDBerkeley, CA 947041669482576
  7. Janice Kirsch, M.D., M.P.H.Berkeley, CA 947051487857595
  8. Nisha Hariharan, MDBerkeley, CA 947021679004543

Common questions

What is David H. Irwin, M.D.'s NPI number?

David H. Irwin, M.D.'s National Provider Identifier (NPI) is 1780672048, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is David H. Irwin, M.D. located?

The NPPES record lists a practice address at 2001 Dwight Way, Berkeley, CA, 94704. Phone: (510) 204-6402. Providers update this record themselves, so call before visiting.

How can I verify David H. Irwin, M.D.'s license?

NPPES lists California license number G68429, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.