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Internal Medicine Providers in Northbrook, IL

Browse 26 Internal Medicine providers listed in NPPES with a practice address in Northbrook, Illinois.

26 Healthcare Providers

How Northbrook compares with the U.S.

Northbrook has 75 clinicians in Internal Medicine per 100,000 residents, about 1.7 times the U.S. rate of 44.

That is 26 active clinicians in Internal Medicine with a practice address in Northbrook, for a population of 34,585.

The Illinois rate is 57 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Internal Medicine in Northbrook listed in the CMS Medicare file (10 of 10) accept Medicare assignment. That is similar to the Illinois share of 96%.

Only 10 of 26 active clinicians in Internal Medicine in Northbrook appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

20% of clinicians in Internal Medicine in Northbrook listed in the CMS Medicare file (2 of 10) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Illinois share of 35%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Northbrook, IL

Source: CMS PECOS
PECOS Enrolled Specialists 15 In Northbrook, IL
Part B Lab & Imaging Eligible 21 Diagnostic Referrals
DME Ordering Eligible 22 Durable Medical Equipment
Home Health Agency Referrals 21 HHA Ordering Eligible
Showing 1โ€“20 of 26 providers
With recent CMS data first, then Aโ€“Z

Dr. Nadeem Akhter , MD

Internal Medicine

Active NPI Status
3100 Dundee Rd Ste 506, Northbrook, IL 600622449
Phone: 8475620840
NPI Identifier 1235176074
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Dr. Lynne C Belsky , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1535 Lake Cook Rd, Suite 306, Northbrook, IL 600621447
Phone: 8474182030
NPI Identifier 1265499438
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Dr. Gene Z Chiao , MD

Internal Medicine

Active NPI Status
40 Skokie Blvd., Suite 110, Northbrook, IL 600621614
Phone: 2242074400
NPI Identifier 1699733188
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Dr. Scott B. Cienkus , MD

Internal Medicine

Active NPI Status
400 Skokie Blvd Ste 530, Northbrook, IL 600622816
Phone: 8475955330
NPI Identifier 1972662849
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Dr. Boris Gurevich , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3400 Dundee Rd Ste 230, Northbrook, IL 600622334
Phone: 8478491523
NPI Identifier 1902877129
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Dr. Caroline Kalember , MD

Internal Medicine

Active NPI Status
400 Skokie Blvd. Suite 405, Northbrook, IL 60062
Phone: 2242158585
NPI Identifier 1487987509
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Dr. Richard S. Katz , MD

Internal Medicine

Active NPI Status
1275 Shermer Rd, Northbrook, IL 600624558
Phone: 8472720005
NPI Identifier 1205924230
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Dr. Mohsina T. Laliwala , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
666 Dundee Rd Ste 802, Northbrook, IL 600622734
Phone: 8475981515
NPI Identifier 1386953602
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Dr. Cori A Levinson , MD

Internal Medicine

Active NPI Status
1535 Lake Cook Rd, Suite 406, Northbrook, IL 600621447
Phone: 8477539353
NPI Identifier 1356385389
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Dr. Sanjeev Lulla , MD

Internal Medicine

Active NPI Status
400 Skokie Blvd Ste 530, Northbrook, IL 600622816
Phone: 8475955330
NPI Identifier 1871652420
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Dr. Meena Malhotra , MD

Internal Medicine

Active NPI Status
1122 Willow Rd, Suite B, Northbrook, IL 600626824
Phone: 8476864444
NPI Identifier 1821191958
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Dr. Karolina Mikos , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
333 Skokie Blvd Ste 101, Northbrook, IL 600621621
Phone: 7739166979
NPI Identifier 1023424843
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Dr. Richard Miller , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1535 Lake Cook Rd, Suite 406, Northbrook, IL 600621447
Phone: 8477539353
NPI Identifier 1811933195
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Dr. Robert C Munson , MD

Internal Medicine

Active NPI Status
770 Skokie Blvd Unit 606, Northbrook, IL 600622352
Phone: 8479701469
NPI Identifier 1609872373
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Dr. Kathryn M Petrungaro , MD

Internal Medicine

Active NPI Status
400 Skokie Blvd Ste 405, Northbrook, IL 600627904
Phone: 2242158585
NPI Identifier 1558526186
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Dr. Miriam Rasof , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1535 Lake Cook Rd, Suite 406, Northbrook, IL 600621447
Phone: 8477539353
NPI Identifier 1942231030
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Dr. Martin Nathan Sachman , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1535 Lake Cook Rd, Ste 306, Northbrook, IL 60062
Phone: 8475645200
NPI Identifier 1629186846
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Dr. Dipeshkumar Shah , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
666 Dundee Rd Ste 802, Northbrook, IL 600622734
Phone: 8474981515
NPI Identifier 1144236233
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Dr. Jean Shlyak , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3000 Dundee Rd Ste 215, Northbrook, IL 600622432
Phone: 8473908550
NPI Identifier 1851457717
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Dr. Bhupinder Singh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
60 Revere Dr Ste 575, Northbrook, IL 600621577
Phone: 7082874209
NPI Identifier 1932250446
View Full Profile

Frequently Asked Questions about Internal Medicine in Northbrook

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Illinois licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.