Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Sinziana Dumitra, M.D., MSC(EPI), FRCS

Surgical Oncology Physician in Duarte, CA · enumerated 2015.

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

National Provider Identifier

1770966178

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Registry record

Entity type Individual (Type 1)

Name Dr. Sinziana Dumitra

Credential M.D., MSC(EPI), FRCS

Sex Female

Practice address Duarte, CA, 91010

Phone (626) 256-4673

Enumeration date Jul 2, 2015

Last updated in NPPES Apr 13, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License A112637 (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

How do I verify Sinziana Dumitra's NPI record?

Cross-check NPI 1770966178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770966178 active?

Yes, as of the latest NPPES snapshot, NPI 1770966178 is active (record last updated 2016-04-13).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-13.