Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alan P Lyss, MD

Q: What is the NPI number for Alan Lyss?

The National Provider Identifier (NPI) for Alan Lyss is 1013920651, a Type 1 (individual) record in the CMS NPPES registry.

Hematology & Oncology Physician in Saint Louis, MO · enumerated 2006.

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

National Provider Identifier

1013920651

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Registry record

Entity type Individual (Type 1)

Name Dr. Alan P Lyss

Credential MD

Sex Male

Practice address 3015 N Ballas Rd, Saint Louis, MO, 63131

Phone (314) 996-5514

Fax (314) 996-5390

Enumeration date Aug 14, 2006

Last updated in NPPES Dec 6, 2007

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License R2C26 (MO) 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

Where does Alan Lyss practice?

The practice location on file with NPPES is in Saint Louis, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alan Lyss?

The National Provider Identifier (NPI) for Alan Lyss is 1013920651, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-06.