Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erik K Madden, M.D.

Surgery Physician in Oakland, CA · enumerated 2013.

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

National Provider Identifier

1356782205

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Registry record

Entity type Individual (Type 1)

Name Erik K Madden

Credential M.D.

Sex Male

Practice address 1800 Harrison St Fl 7, Oakland, CA, 94612

Phone (510) 625-2856

Fax (877) 738-4262

Enumeration date Jul 8, 2013

Last updated in NPPES Dec 17, 2021

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A135529 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1356782205 active?

Yes, as of the latest NPPES snapshot, NPI 1356782205 is active (record last updated 2021-12-17).

How do I verify Erik Madden's NPI record?

Cross-check NPI 1356782205 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Dinh Nguyen Trauma Surgery Physician · Oakland, CA NPI 1922116987 Rujeko Nyachoto Family Medicine Physician · Oakland, CA NPI 1629154760 Harold Lin Hospitalist Physician · Oakland, CA NPI 1063590636 Shuk Han Wong Family Medicine Physician · Oakland, CA NPI 1033315403 Thomas Picarella Certified Registered Nurse Anesthetist · Oakland, CA NPI 1568656411 Christopher Cox Orthopaedic Hand Surgery Physician · Oakland, CA NPI 1013104215 The Permanente Medical Group, Inc General Acute Care Hospital · Oakland, CA NPI 1699951632 Stephanie Rodriguez Certified Registered Nurse Anesthetist · Oakland, CA NPI 1598943862

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-17.