DR. AARON N. GROSSMAN M.D.
NPI 1285740167
Ophthalmology in Chicago, IL

Q: What is Aaron Grossman's NPI number?

The NPI number for Aaron Grossman is 1285740167. It was assigned to this individual provider in the NPPES registry on August 22, 2006.

Q: What is Aaron Grossman's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Aaron Grossman was last updated on November 26, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since August 22, 2006PECOS EnrolledAccepts Medicare Assignment

6801 N. CALIFORNIA AVE, CHICAGO, IL 60645(773) 743-4300(773) 743-5132 Get Directions Write a Review

NPPES record last updated: November 26, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Aaron N. Grossman M.d. NPPES

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

DR. AARON N. GROSSMAN M.D. (NPI 1285740167) is an individual ophthalmology provider in Chicago, Illinois, licensed in Illinois (036-073310) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Eastern Virginia Medical School (1985).

NPPES Registry Identity

NPI1285740167

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. AARON N. GROSSMANCredential: M.D.

Location Address6801 N. CALIFORNIA AVEChicago, IL 60645-4512

Mailing Address6801 N. California AveChicago, IL 60645-4512 · (773) 743-4300 · Fax (773) 743-5132

Phone(773) 743-4300

Fax(773) 743-5132

Sole ProprietorNo

Medical School CMSEastern Virginia Medical SchoolGraduated 1985

Enumeration DateAugust 22, 2006

Last NPPES UpdateNovember 26, 2012

✔ NPI 1285740167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in IL · 036-073310

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

6801 N. CALIFORNIA AVE, Chicago, IL 60645

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Other Identifiers 3

Medicare UPINC37104

Medicare ID-Type Unspecified787590

Medicaid036073310IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross Blue Shield of Wyoming, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Aaron N. Grossman M.d. 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 ID6709916430

PECOS Enrollment IDI20100607000830

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.

Medicare Billing Reassignment

Medicare enrollment records show Aaron Grossman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Eye Surgeons Sc

Same address

Ophthalmology

6801 N CALIFORNIA AVE
Chicago, IL 60645

Reassigned Medicare billing, Illinois enrollment
2 clinicians in this Medicare group

NPI 1740319490 (773) 743-4300

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

Areas of Expertise CMS Part B claims 11

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.

222 services162 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

107 services92 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

80 services42 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

67 services44 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

51 services44 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

41 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60645 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

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Grossman's NPI number?

The NPI number for Aaron Grossman is 1285740167. It was assigned to this individual provider in the NPPES registry on August 22, 2006.

Where is Aaron Grossman located?

Aaron Grossman practices at 6801 N. California Ave, Chicago, IL 60645. The listed phone number is (773) 743-4300.

What is Aaron Grossman's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Aaron Grossman enrolled in Medicare?

Yes. Aaron Grossman 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.

Which organization bills Medicare for Aaron Grossman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Grossman reassigns Medicare benefits to Eye Surgeons Sc (Chicago, IL). The 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 Aaron Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Grossman accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana and Oscar Health list Aaron Grossman 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.

When was this NPI record last updated?

The NPPES record for Aaron Grossman was last updated on November 26, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.