Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dou Alvin Zhang, MD-PHD

Cardiovascular Disease Physician in Halethorpe, MD · enumerated 2007.

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

National Provider Identifier

1700930583

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Registry record

Entity type Individual (Type 1)

Name Dr. Dou Alvin Zhang

Credential MD-PHD

Sex Male

Practice address 1701 Twin Springs Rd, Halethorpe, MD, 21227

Phone (410) 737-5260

Enumeration date Jan 22, 2007

Last updated in NPPES May 30, 2021

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License RES-000 (MD) Primary

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 1700930583 active?

Yes, as of the latest NPPES snapshot, NPI 1700930583 is active (record last updated 2021-05-30).

How do I verify Dou Zhang's NPI record?

Cross-check NPI 1700930583 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-30.