NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert A Weiss, M.D.

Specialist in Hunt Valley, MD · enumerated 2005 · practices at Robert & Margaret Weiss MD P.A..

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

National Provider Identifier

1588647622

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Robert A Weiss
Credential M.D.
Sex Male
Practice address 54 Scott Adam Road, Suite 301, Hunt Valley, MD, 21030
Fax (410) 666-3981
Enumeration date Nov 22, 2005
Last updated in NPPES Mar 30, 2011

Taxonomy & licenses

174400000X Specialist Other Service Providers · License D0027192 (MD) 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 Robert Weiss's NPI record?
Cross-check NPI 1588647622 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1588647622 active?
Yes, as of the latest NPPES snapshot, NPI 1588647622 is active (record last updated 2011-03-30).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-30.