Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jack S Lissauer, MD

Gastroenterology Physician in Beachwood, OH · enumerated 2005.

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

National Provider Identifier

1720087356

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Registry record

Entity type Individual (Type 1)

Name Dr. Jack S Lissauer

Credential MD

Sex Male

Practice address 3700 Park East Dr, Suite 100, Beachwood, OH, 44122

Phone (216) 593-7700

Fax (216) 593-7190

Enumeration date Jul 15, 2005

Last updated in NPPES Oct 24, 2007

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 35038212L (OH) 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
000000127021	Other	OH	ANTHEM BCBS & ANTHEM SR
000000127021	Other	OH	ONE NATION BENEFIT ADMIN.
5089882001	Other	OH	CIGNA
000000127021	Other	OH	OHIO OPERATING ENGINEERS
4079026	Other	OH	AETNA
603650	Other	OH	UNITED HEALTHCARE
0307699	Medicaid	OH	-
P1482889	Other	OH	OXFORD INSURANCE
R38212	Other	OH	APEX & SUMMACARE

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.

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Frequently asked questions

What specialty is Jack Lissauer?

Jack Lissauer is registered in NPPES with the primary taxonomy of Gastroenterology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-24.