Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alan Auerbach MD

Q: What is the NPI number for Alan Auerbach MD?

The NPI for Alan Auerbach MD is 1871625483, a Type 2 (organization) record in the CMS NPPES registry.

Gastroenterology Physician in Buffalo Grove, IL · enumerated 2007 · authorized official Alan Auerbach, Owner.

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

National Provider Identifier

1871625483

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Registry record

Entity type Organization (Type 2)

Legal business name Alan Auerbach MD

Other name <Unavail>

Practice address 125 E Lake Cook Rd, Ste 229, Buffalo Grove, IL, 60089

Phone (847) 459-3345

Fax (847) 459-3817

Enumeration date Mar 9, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alan Auerbach

Title Owner

Phone (847) 459-3345

Other identifiers

Identifier	Type	State	Issuer
0031600714	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Alan Auerbach MD?

NPPES lists Alan Auerbach (Owner) as the authorized official for this organization.

What is the NPI number for Alan Auerbach MD?

The NPI for Alan Auerbach MD is 1871625483, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.