Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lori A Zimmers, M.D.

Internal Medicine Physician in St Charles, IL · enumerated 2006.

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

National Provider Identifier

1588734818

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Registry record

Entity type Individual (Type 1)

Name Lori A Zimmers

Credential M.D.

Sex Female

Practice address 2900 Foxfield Rd, St Charles, IL, 60174

Phone (630) 208-3200

Fax (630) 208-3201

Enumeration date Nov 8, 2006

Last updated in NPPES Dec 2, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036-096347 (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
P01157959	Other	IL	MEDICARE RAIL ROAD PTAN (INDIVIDUAL)
920540	Other	IL	MEDICARE PTAN (GROUP)
CA4748	Other	IL	MEDICARE RAIL ROAD PTAN (GROUP)
110154484	Other	IL	RAILROAD MEDICARE
920540017	Other	IL	MEDICARE PTAN (INDIVIDUAL)
036096347	Medicaid	IL	-

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 Lori Zimmers?

Lori Zimmers is registered in NPPES with the primary taxonomy of Internal Medicine 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 2013-12-02.