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

Dr. Robert William Blum, MD

Pediatric Adolescent Medicine Physician in Baltimore, MD · enumerated 2009 · practices at Johns Hopkins University.

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

National Provider Identifier

1568603397

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert William Blum

Credential MD

Sex Male

Practice address Baltimore, MD, 21205

Phone (410) 955-3385

Fax (410) 955-2303

Enumeration date Mar 6, 2009

Last updated in NPPES Mar 7, 2023

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

Taxonomy & licenses

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians · License D0063300 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
D0063300	Other	MD	MARYLAND BOARD OF PHYSICIANS

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 1568603397 active?

Yes, as of the latest NPPES snapshot, NPI 1568603397 is active (record last updated 2023-03-07).

How do I verify Robert Blum's NPI record?

Cross-check NPI 1568603397 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 2023-03-07.