Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Albert Mendelson, M.D.

Diagnostic Radiology Physician in Grayslake, IL · enumerated 2006.

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

National Provider Identifier

1558438861

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Registry record

Entity type Individual (Type 1)

Name Dr. Albert Mendelson

Credential M.D.

Sex Male

Practice address 1275 E Belvidere Rd, Suite 200, Grayslake, IL, 60030

Phone (847) 918-1462

Fax (847) 968-4311

Enumeration date Nov 29, 2006

Last updated in NPPES Feb 3, 2016

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 36110956 (IL) Primary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 54012-20 (WI) Secondary

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
036110956	Medicaid	IL	-
212545	Other	IL	GROUP PTAN
202926	Other	IL	GROUP PTAN

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

Where does Albert Mendelson practice?

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

What is the NPI number for Albert Mendelson?

The National Provider Identifier (NPI) for Albert Mendelson is 1558438861, 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 2016-02-03.