Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Blumberg, MD

Surgery Physician in Oakland, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1295890440

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Registry record

Entity type Individual (Type 1)

Name David Blumberg

Credential MD

Sex Male

Practice address 350 30th St Ste 411, Oakland, CA, 94609

Phone (510) 204-8168

Fax (510) 506-7725

Enumeration date Dec 27, 2006

Last updated in NPPES Sep 25, 2019

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD069008L (PA) Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License MD069008L (PA) Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License D0078428 (MD) Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 605665 (CA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 605665 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

What specialty is David Blumberg?

David Blumberg is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Robert Bober Cardiovascular Disease Physician · Oakland, CA NPI 1962469841 Stephen Raskin Cardiovascular Disease Physician · Oakland, CA NPI 1730125980 Michael Tsang Cardiovascular Disease Physician · Oakland, CA NPI 1053335117 Giovanni Begossi Surgical Oncology Physician · Oakland, CA NPI 1053460873 Oleg Merzlikin Surgery Physician · Oakland, CA NPI 1568760643 Jalal Vargha Cardiovascular Disease Physician · Oakland, CA NPI 1639599467

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-25.