Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gerald E Lynch, MD

Surgery Physician in Oak Park, IL · enumerated 2005.

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

National Provider Identifier

1740285733

Verified

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Registry record

Entity type Individual (Type 1)

Name Gerald E Lynch

Credential MD

Sex Male

Practice address 1100 Lake St, Ste 230, Oak Park, IL, 60301

Phone (331) 221-9004

Fax (331) 221-2748

Enumeration date Jun 16, 2005

Last updated in NPPES Jun 14, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036.094118 (IL) 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
036094118	Medicaid	IL	-
21604882	Other	IL	BLUE CROSS BLUE SHIELD

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

Is NPI 1740285733 active?

Yes, as of the latest NPPES snapshot, NPI 1740285733 is active (record last updated 2021-06-14).

How do I verify Gerald Lynch's NPI record?

Cross-check NPI 1740285733 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Michael Kyle Family Medicine Physician · Oak Park, IL NPI 1578556544 Donna Hanlon Infectious Disease Physician · Oak Park, IL NPI 1841285897 Disomma Foot & Ankle Clinic PC Podiatrist · Oak Park, IL NPI 1285621235 Anand Lal Geriatric Medicine (Internal Medicine) Physician · Oak Park, IL NPI 1942282314 Mary Obeso Family Medicine Physician · Oak Park, IL NPI 1760461818 Stephen Humowiecki Family Medicine Physician · Oak Park, IL NPI 1477533560 Quality Medical Services Nursing Care Agency · Oak Park, IL NPI 1477512978 Gayle Rosenthal Gastroenterology Physician · Oak Park, IL NPI 1982627840

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-14.