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GABRIEL I. BERLIN, MD, LLC
NPI 1043362718
Internal Medicine in Glenview, IL

Active since January 16, 2007CLIA 14D0866444 · Microscopy
3633 W LAKE AVE, SUITE 302, GLENVIEW, IL 60026(847) 998-5700(847) 998-5795 Get Directions Write a Review

NPPES record last updated: August 18, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gabriel I. Berlin, Md, Llc NPPES

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

GABRIEL I. BERLIN, MD, LLC (NPI 1043362718) is a healthcare organization registered as an internal medicine in Glenview, Illinois and active in the NPI registry since January 2007. The organization holds a CLIA Microscopy certificate valid through August 31, 2028 and lists Gabriel I. Berlin, Member, as its authorized official.

NPPES Registry Identity

NPI1043362718
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGABRIEL I. BERLIN, MD, LLC
Location Address3633 W LAKE AVE, SUITE 302Glenview, IL 60026-5805
Mailing Address3633 W Lake Ave, Suite 302Glenview, IL 60026-5805 · (847) 998-5700 · Fax (847) 998-5795
Phone(847) 998-5700
Fax(847) 998-5795
Organization SubpartNo
Authorized OfficialGabriel I. BerlinMember · (847) 998-5700
Enumeration DateJanuary 16, 2007
Last NPPES UpdateAugust 18, 2008
✔ NPI 1043362718 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.
3633 W LAKE AVE, Glenview, IL 60026
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Other Identifiers 3

Medicaid036053249IL
Other01638042IL · Blue Cross/blue Shield
Medicare PIN214659IL

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)

Gabriel I. Berlin, Md, Llc 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 Gabriel I. Berlin, MD, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gabriel Berlin, M.D.
Internal Medicine
NPI 1831296474
3633 W LAKE AVE SUITE 302
Glenview, IL 60026
(847) 998-5700
✔ PECOSSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 14D0866444

Gabriel I Berlin MD LLC · Glenview, IL
Active · expires Aug 31, 2028
CLIA Number14D0866444
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorGabriel Berlin
Laboratory Phone(847) 998-5700
Laboratory LocationGabriel I Berlin MD LLC3633 W Lake Avenue Suite 302, Glenview, IL 60026
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Gabriel I. Berlin, MD, LLC's NPI number?

The NPI number for Gabriel I. Berlin, MD, LLC is 1043362718. It was assigned to this organization in the NPPES registry on January 16, 2007.

Where is Gabriel I. Berlin, MD, LLC located?

Gabriel I. Berlin, MD, LLC is located at 3633 W Lake Ave Suite 302, Glenview, IL 60026. The listed phone number is (847) 998-5700.

What is Gabriel I. Berlin, MD, LLC's specialty?

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

Is Gabriel I. Berlin, MD, LLC enrolled in Medicare?

Yes. Gabriel I. Berlin, MD, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gabriel I. Berlin, MD, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Gabriel I. Berlin, MD, LLC. 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.

Does Gabriel I. Berlin, MD, LLC hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 14D0866444) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gabriel I. Berlin, MD, LLC was last updated on August 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.