Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Steven L Blumlein, MD

Cardiovascular Disease Physician in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1568473361

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Registry record

Entity type Individual (Type 1)

Name Dr. Steven L Blumlein

Credential MD

Sex Male

Practice address 1100 Van Ness Ave Fl 5, San Francisco, CA, 94109

Phone (415) 537-8600

Fax (415) 369-1371

Enumeration date Aug 10, 2006

Last updated in NPPES Jan 15, 2020

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License G39578 (CA) 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
G39578	Other	CA	CA MEDICAL LICENSE

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 1568473361 active?

Yes, as of the latest NPPES snapshot, NPI 1568473361 is active (record last updated 2020-01-15).

How do I verify Steven Blumlein's NPI record?

Cross-check NPI 1568473361 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 2020-01-15.