AARON BENJAMIN MD
NPI 1699954537
Internal Medicine - Endocrinology, Diabetes & Metabolism in Chicago, IL

Active since October 28, 2007PECOS EnrolledAccepts Medicare Assignment
3134 N CLARK ST, CHICAGO, IL 60657(312) 766-4949(312) 766-4908 Get Directions Write a Review

NPPES record last updated: April 26, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Aaron Benjamin Md NPPES

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

AARON BENJAMIN MD (NPI 1699954537) is an individual endocrinology, diabetes & metabolism provider in Chicago, Illinois, licensed in Illinois (036116952) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Skokie.

NPPES Registry Identity

NPI1699954537
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameAARON BENJAMINCredential: MD
Location Address3134 N CLARK STChicago, IL 60657-4414
Mailing Address29373 Network PlChicago, IL 60673-1057 · (847) 390-5900
Fax(312) 766-4908
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2004
Enumeration DateOctober 28, 2007
Last NPPES UpdateApril 26, 2023
NPPES CertifiedApril 26, 2023
NPI 1699954537 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License Licensed in IL · 036116952
Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

3134 N CLARK ST, Chicago, IL 60657

Secondary Practice Location 1

Location 19977 Woods Dr Ste 300Skokie, IL 60077-1057 · Phone (847) 663-8540 · Fax (847) 663-1015

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Aaron Benjamin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466500657
PECOS Enrollment IDI20090427000548
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
321 services196 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
291 services189 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
196 services116 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
161 services74 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
66 services50 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
54 services54 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

Advocate Lutheran General Hospital

Acute Care Hospitals · Park Ridge, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140223
Location1775 Dempster StPark Ridge, IL 60068 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
3 suppliers11 claims420 services$2.35 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
26 suppliers60 claims285 services$6.41 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
15 suppliers32 claims69 services$1.14 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
15 suppliers386 claims390 services$185.12 avg. paid by Medicare
Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system K0554
DME-Other DME · category DE017N
7 suppliers17 claims17 services$204.59 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Cardiovascular Disease)
3134 N CLARK ST
CHICAGO, IL 60657
Internal Medicine
3134 N CLARK ST
CHICAGO, IL 60657
Nurse Practitioner
3134 N CLARK ST
CHICAGO, IL 60657
Internal Medicine
3134 N CLARK ST
CHICAGO, IL 60657
Internal Medicine (Cardiovascular Disease)
3134 N CLARK ST
CHICAGO, IL 60657
Internal Medicine
3134 N CLARK ST
CHICAGO, IL 60657
Internal Medicine
3134 N CLARK ST
CHICAGO, IL 60657
Internal Medicine
3134 N CLARK ST
CHICAGO, IL 60657

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 Aaron Benjamin's NPI number?

The NPI number for Aaron Benjamin is 1699954537. It was assigned to this individual provider in the NPPES registry on October 28, 2007.

Where is Aaron Benjamin located?

Aaron Benjamin practices at 3134 N Clark St, Chicago, IL 60657. The listed phone number is (312) 766-4949.

What is Aaron Benjamin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Aaron Benjamin enrolled in Medicare?

Yes. Aaron Benjamin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Aaron Benjamin accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Aaron Benjamin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Aaron Benjamin affiliated with any hospitals?

According to CMS data, Aaron Benjamin is affiliated with Northshore University Healthsystem - Evanston Hospital, Advocate Illinois Masonic Medical Center and Advocate Lutheran General Hospital.

When was this NPI record last updated?

The NPPES record for Aaron Benjamin was last updated on April 26, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.