Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Benjamin Patrick Sopczynski, M.D.

Surgery Physician in Oakland, CA · enumerated 2014.

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

National Provider Identifier

1336554708

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Registry record

Entity type Individual (Type 1)

Name Dr. Benjamin Patrick Sopczynski

Credential M.D.

Sex Male

Practice address 365 Hawthorne Ave Ste 101, Oakland, CA, 94609

Phone (510) 465-5523

Fax (510) 832-6061

Enumeration date Jun 24, 2014

Last updated in NPPES Mar 12, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A169158 (CA) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 4301105704 (MI) Secondary

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

What is the NPI number for Benjamin Sopczynski?

The National Provider Identifier (NPI) for Benjamin Sopczynski is 1336554708, a Type 1 (individual) record in the CMS NPPES registry.

Where does Benjamin Sopczynski practice?

The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Steven Stanten Surgery Physician · Oakland, CA NPI 1285697698 Michael Sung Surgery Physician · Oakland, CA NPI 1225423072 Hnoukaj Lyfoung Surgery Physician · Oakland, CA NPI 1053774919 Jennifer Lee Surgery Physician · Oakland, CA NPI 1770937641 Nicholas Gonsalves Student in an Organized Health Care Education/Training Program · Oakland, CA NPI 1124553987 Katherine Burns Surgical Physician Assistant · Oakland, CA NPI 1467975953 Nikhilesh Chitibomma Student in an Organized Health Care Education/Training Program · Oakland, CA NPI 1063031896

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-12.