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HOFFMAN BARRINGTON INTERNAL MEDICINE SPECIALISTS
NPI 1629262746
Internal Medicine in Hoffman Estates, IL

Active since August 31, 2007
1585 N BARRINGTON RD, HOFFMAN ESTATES, IL 60169(847) 843-7404(847) 843-0030 Get Directions Write a Review

NPPES record last updated: December 29, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Hoffman Barrington Internal Medicine Specialists NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HOFFMAN BARRINGTON INTERNAL MEDICINE SPECIALISTS (NPI 1629262746) is a healthcare organization registered as an internal medicine in Hoffman Estates, Illinois and active in the NPI registry since August 2007. The organization lists Robert Alan Small, Owner, as its authorized official.

NPPES Registry Identity

NPI1629262746
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHOFFMAN BARRINGTON INTERNAL MEDICINE SPECIALISTS
Location Address1585 N BARRINGTON RDHoffman Estates, IL 60169-1090
Mailing Address1555 Barrington Rd, Doctors Building One Suite 230Hoffman Estates, IL 60169-1019 · (847) 843-7404 · Fax (847) 843-0030
Phone(847) 843-7404
Fax(847) 843-0030
Organization SubpartNo
Authorized OfficialRobert Alan SmallOwner · (847) 843-7404
Enumeration DateAugust 31, 2007
Last NPPES UpdateDecember 29, 2025
NPPES CertifiedDecember 29, 2025
✔ NPI 1629262746 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1585 N BARRINGTON RD, Hoffman Estates, IL 60169
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Other Names 1

Doing Business AsHoffman Barrington Internal Medicine Specialists

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hoffman Barrington Internal Medicine Specialists is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Hoffman Barrington Internal Medicine Specialists, which bills Medicare for the services this clinician delivers.

Clinician (1)

Robert Small, M.D.
Internal Medicine
NPI 1689690463
1585 BARRINGTON RD STE 204
Hoffman Estates, IL 60169
(847) 843-7404
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hoffman Barrington Internal Medicine Specialists's NPI number?

The NPI number for Hoffman Barrington Internal Medicine Specialists is 1629262746. It was assigned to this organization in the NPPES registry on August 31, 2007.

Where is Hoffman Barrington Internal Medicine Specialists located?

Hoffman Barrington Internal Medicine Specialists is located at 1585 N Barrington Rd, Hoffman Estates, IL 60169. The listed phone number is (847) 843-7404.

What is Hoffman Barrington Internal Medicine Specialists's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Hoffman Barrington Internal Medicine Specialists enrolled in Medicare?

Yes. Hoffman Barrington Internal Medicine Specialists is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hoffman Barrington Internal Medicine Specialists?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Hoffman Barrington Internal Medicine Specialists. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Hoffman Barrington Internal Medicine Specialists was last updated on December 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.