Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Shari S Ludwig, MD

Physical Medicine & Rehabilitation Physician in Oak Lawn, IL · enumerated 2005.

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

National Provider Identifier

1073509584

Verified

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Registry record

Entity type Individual (Type 1)

Name Shari S Ludwig

Credential MD

Sex Female

Practice address 4440 W 95th St, Emg Lab, Room 042 South, Oak Lawn, IL, 60453

Phone (708) 684-5428

Fax (708) 684-2079

Enumeration date Sep 21, 2005

Last updated in NPPES Dec 16, 2021

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 036073770 (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
250002471	Other	IL	RAILROAD MEDICARE
36354817306	Other	IL	ADVOCATE HLTH CENTERS ID
131667300	Other	IL	WORKERS COMPENSATION
47610	Other	IL	ADVOCATE HLTH PARTNERS ID
01621490	Other	IL	BCBS PROVIDER ID
036073770	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 Shari Ludwig?

Shari Ludwig is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation 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 2021-12-16.